An elected official surveyed residents of a town to assess their satisfaction with city services. the survey includes both those who own and those who rent their homes. level of satisfaction high medium low total owners 26 34 18 78 renters 15 12 5 22 total 41 46 23 110 what proportion of those surveyed have low satisfaction with city services? 0.2091 0.2308 0.2644 0.3727
The proportion we get is 0.291 and that matches up with our first choice that we see.
What is proportion?A proportion simply means the amount or quantity of a thing present in another thing taken as whole.
What are the applications of proportion?The main purpose of stating stuff in proportions is to compare shares. If 2 people receive shares in a 1:1 proportion, it means they have exactly equal shares. If 2 people invest in something and one partner invests $3 for every $2 the other invested, the major partner would expect the profits to be divided 3:2 in their favor.
This issue informs us that a town's residents were polled by an elected official to see how satisfied they were with the town's services. Both homeowners and renters were included in the survey. The following charts show the percentage of respondents that are unsatisfied with city services. In order to calculate the percentage of surveys with low satisfaction, we only need to consider the third column to the right, which is labeled "low satisfaction," and the number we are interested in is the 1, which corresponds to the row labeled "total," because it represents the total number of survey respondents who have low satisfaction, whether or not they are home owners or renters. This number is 23 points.
But that only represents the whole population of those with low levels of satisfaction. We can find the total number of respondents in the cross section between the total column and the total row, giving us 110 points. We wish to multiply that total for the low level by the entire number of respondents. Therefore, if we want that proportion right away, we need divide 23 by 110 points. When we round off to four decimal places, the result is 0.291, which corresponds to our initial option that we see.
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Answer:
A - 0.2091
Step-by-step explanation:
I took it
Find the area of the figure.
The area of the figure in the first, second, and third cases will be 76 square ft, 120 square cm, and 87.5 square in, respectively.
What is a trapezoid?It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a trapezoid, one pair of opposite sides are parallel.
The area of the trapezoid will be calculated as,
A = 1/2(sum of parallel sides) x height
8. The area of the figure is calculated as,
A = 1/2 (6 + 6 + 7) x 8
A = 76 square ft
9. The area of the figure is calculated as,
A = 1/2 (8 + 4) x 4 + 8 x 12
A = 24 + 96
A = 120 square cm
10. The area of the figure is calculated as,
A = 1/2 (5 + 10) x 5 + 5 x 10
A = 37.5 + 50
A = 87.5 square in
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The instructions for a fashion design project require three different cuts of silk The
longest piece must be twice the length of the middle-sized piece, and the shortest
piece must be ten inches shorter than the middle sized piece. The total length of the
piece of silk you are given to work with is 70 inches. How long should each of the
three cut pieces be?
The three cut pieces should be 10 inches, 20 inches, and 40 inches for the shortest, middle-sized and longest respectively
How to determine how long should each of the three cut pieces be?This is a word problem. We need to understand the sentence in order to translate it correctly.
To find the length of each of the three cut pieces, we can use the given information to set up a system of equations.
Let L, M and S be the length of the longest, middle-sized and shortest piece respectively
So we can set up the following equation:
L = 2M
S = M-10
L + M + S = 70
2M + M + (M - 10) + = 70
We can combine like terms to get:
4M - 10 = 70
4M = 80
We can divide both sides by 4 to get:
M = 20
Therefore, the length of the middle-sized piece is 20 inches.
Since L = 2M
L = 2 × 20 inches = 40 inches.
Since S = M - 10
S = 20 - 10 = 10 inches.
Therefore, the three cut pieces should be 10 inches, 20 inches, and 40 inches for the shortest, middle-sized and longest respectively
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A game uses an unbiased die with faces numbered 1 to 6. The die is thrown once. If it shows an even number this number is doubled to get the final score. If an odd number is thrown then the die is thrown again and the final score is the sum of the numbers shown on the two throws.
Given that the dice was thrown twice. What is the probability that the final score is 8
These box plots show daily low temperatures for a sample of days in two
different towns.
Town A
15 20
30
HHH
Town B
15 20 25 30
58
HH
0
5
10
15 20 25
30
35
40
45 50 55 60
Degrees (F)
Compare the shapes of the box plots.
• A. The distributions for both towns are symmetric.
B. The distribution for town A is symmetric, but the distribution for
town B is negatively skewed.
C. The distributions for both towns are positively skewed.
• D. The distribution for
town A is symmetric, but the distribution for
town B is positively skewed.
The distribution for town A is symmetric, but the distribution for town B is positively skewed.
Define skew.Skewed lines are two lines that are not parallel to one another, neither do they intersect. Only dimensions greater than two-dimensional space can have skew lines. They must be non-coplanar, which means that they must exist in various planes. Two lines in a two-dimensional space can either intersect or run parallel to one another. Skew lines can never exist in 2D space as a result. Skew lines occur frequently in real-world circumstances. Let's say there is a line on the ceiling and a line on the wall. These lines can be skew lines because they lie in distinct planes if they are not parallel to one another and do not meet.
Given
By comparing the shapes of the box plots,
D. The distribution for town A is symmetric, but the distribution for town B is positively skewed.
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32 feet
21 feet
< Previous
8 feet
12 feet
Which of these boards could be used for his project?
OA, B, and C
OA, B, and D
OD, C, and A
OD, C, and B
Work is done by A in one day [tex]$=\frac{1}{15}$[/tex]
By B [tex]$=\frac{1}{12}$[/tex]
[tex]\mathrm{C}=\frac{1}{20}[/tex]
boards could be used for his project
Together in 1 Day [tex]\text { Together in } 1 \text { Day }=\frac{1}{15}+\frac{1}[/tex][tex]{12}+\frac{1}{20}=\frac{4+5+3}{60}=\frac{12}{60}=\frac{1}{5}[/tex]
2 days work [tex]$=\frac{2}{5}$[/tex]
Remaining work [tex]$=1-\frac{2}{5}=\frac{3}{5}$[/tex]
one day work of [tex]$\mathrm{A}, \mathrm{B} \Rightarrow \mathrm{A}+\mathrm{B}=\frac{1}{15}+\frac{1}{12}=\frac{4+5}{60}=\frac{9}{60}=\frac{3}{20}$[/tex]
[tex]$$\begin{aligned}& (A+B) \text { work for } t \text { days }=\frac{3}{20} t=\frac{3}{5} \\& t=4 \text { days }\end{aligned}$$[/tex]
A and B will complete the work in 4 days.
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A triangle has side lengths of (9v-7w)(9v−7w) centimeters, (7v+10x)(7v+10x) centimeters, and (8x+5w)(8x+5w) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?
Perimeter of triangle is P= 18x+16v-2w.
How do triangles work?
A triangle is a polygon with three vertices and three sides. The angles of the triangle are formed by the connection of the three sides end to end at a single point.
The triangle's three angles add up to a total of 180 degrees.
.
side lengths of a triangle are (9v-7w),(7v+10x),(8x+5w) centimetres.
We know that perimeter of the triangle is sum of all the three sides.
So here perimeter p= addition of all sides of a triangle.
Therefore ,
P = ( 9v - 7w) + (7v + 10x ) + ( 8x + 5w)
= 9v - 7w + 7v + 10x + 8x + 8w
= 18x + 16v - 2w
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Your algebra final exam is worth 150 points and contains 60 questions. Some of the questions are worth two
points and some are worth five points. How many two-point and five-point questions are on the test?
There are 50 two-point questions and 10 five-point questions on the test.
What is a linear equation in two variables?
A linear equation in two variables is an equation that can be written in the form Ax + By = C, where A, B, and C are constants and x and y are variables. The graph of a linear equation in two variables is a straight line, and the equation represents a linear relationship between the variables.
To solve this problem, you can use the fact that the total number of points on the test is 150 and that some of the questions are worth two points and some are worth five points.
Let x represent the number of two-point questions on the test, and let y represent the number of five-point questions on the test.
We can set up the following system of equations to represent the given information:
2x + 5y = 150
x + y = 60
To solve this system, you can use the substitution method. First, solve the second equation for y:
y = 60 - x
Substitute this expression for y into the first equation:
2x + 5(60 - x) = 150
This simplifies to:
2x + 300 - 5x = 150
Combine like terms:
-3x = -150
Divide both sides by -3:
x = 50
Substitute this value for x into the second equation to find the value of y:
y = 60 - 50 = 10
Hence, there are 50 two-point questions and 10 five-point questions on the test.
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the idea that there is a relationship in the population and that the relationship in the sample reflects this relationship in the population is referred to as:
The idea that there is a relationship in the population and that the relationship in the sample reflects this relationship in the population is referred to as Alternative Hypothesis.
Alternative Hypothesis:
In statistical hypothesis testing, the alternative hypothesis is one of the statements proposed in the hypothesis test. In general, the purpose of a hypothesis test is to show that, given the conditions, there is sufficient evidence to support the reliability of the alternative hypothesis rather than the sole assertion in the test (the null hypothesis) . It is usually consistent with research hypotheses because it is generated from literature reviews, previous studies, etc. However, in some cases the research hypothesis is consistent with the null hypothesis.
In statistics, the alternative hypothesis is often denoted by Ha or H1. Hypotheses are formulated to compare them in statistical hypothesis testing. In the field of inferential statistics, two competing hypotheses can be compared for their explanatory and predictive power.
For scalar parameters, there are four main types of alternative hypotheses:
Points: The point alternative arises when the hypothesis test is designed such that the population distribution under the alternative is a fully defined distribution with no unknown parameters. Such hypotheses are usually of no practical interest, but are fundamental to the theoretical considerations of statistical inference and form the basis of the Nyman-Pearson lemma.Unidirectional: The one-sided alternative addresses the rejection region on only one side of the sample distribution.Bidirectional: The two-sided alternative addresses both rejection regions of the sample distribution.Undirected: The undirected alternative hypothesis does not address any of the areas of rejection, only that the null hypothesis is not true.Learn more about Alternative Hypothesis:
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A rectangle park had two walking pathe as shown if PS=115m and PR=216m, find the length of QT
Answer:
QT = 108 m
Step-by-step explanation:
the diagonals of a rectangle are congruent and bisect each other, so
QS = PR = 216 , then
QT = [tex]\frac{1}{2}[/tex] QS = [tex]\frac{1}{2}[/tex] × 216 = 108 m
Answer: 108
Step-by-step explanation:
diagonals of a rectangle are equal in length
∴ PR = QS = 216
Diagonals of a rectangle bisect each other
=> QT = QS = [tex]\frac{QS}{2} \\= > \frac{216}{2}\\ = 108[/tex]
What is the solution of the system of equations below?
x + 3y = 7
2x - y = 7
Answer:
y = 1
x = 4
Step-by-step explanation:
x + 3y = 7 → ( 1 )
2x - y = 7 → ( 2 )
First, let us make x the subject in equation ( 1 ).
x = 7 - 3y → ( 3 )
Let us find the value of y.
For that let us take equation (1) & replace x with ( 7 - 3y ).
2x - y = 7
2 ( 7 - 3y ) - y = 7
Solve the brackets.
14 - 6y - y = 7
Combine like terms.
14 - 7y = 7
Subtract 14 from both sides.
-7y = 7 - 14
-7y = -7
Divide both sides by -7.
y = 1
Let us find value of x
For that let us take equation (3) & replace y with 1.
x = 7 - 3y
x = 7 - 3 × 1
x = 7 - 3
x = 4
Question 1 of 7 ✓
Question 1
>
The relationship between the amount of time a car is parked, in hours, and the cost of parking, in dollars, can be described with a function. Which
statements about the function are true? Select all that apply.
A
The parking cost is the function of the amount of time the car is parked and for 1 hour the cost of parking is $3 with a maximum amount of $12 for parking. The correct statements are C and D.
What is a function?A function is a relationship between the dependent and independent variables. The independent variables are function inputs, while the dependent variables are function outputs. The value of a dependent variable is determined by the input.
Here in the graph, the cost of parking is varying with time. It means that the cost of parking is dependent on the time of parking but the maximum amount for parking is $12 for any number of hours of car parking.
Hence, the correct statements are C and D.
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Y-2/3x=-6. Find the value of y.
Find the sum of the finite arithmetic sequence.
Sum of the first 80 positive odd integers
Answer:
6400
Step-by-step explanation:
We have 1 + 3 + 5 + ... + 155 + 157 + 159.
We can use Gauss's strategy.
Since we are adding 80 numbers, there are 40 pairs. Each pair adds up to 1 + 159 = 160. (Notice that 3 + 157, 5 + 155 = 160)
Thus, because there are 40 pairs and each pair adds up to 160, we have 160 * 40 = 6400.
I hope this helps!
7 (-5r+3) - 7r ≤ -29+8r solve the inequality
The value of r for the given inequality 7(-5r + 3) - 7r ≤ -29 + 8r is r ≥ 1.
What is inequality?Inequality shows relation between two expression which are not equal to each others.
The given inequality is,
7(-5r + 3) - 7r ≤ -29 + 8r
To determine the value of r, simplify the inequality,
-35r + 21 - 7r ≤ -29 + 8r
21 - 42r ≤ -29 + 8r
21 + 29 ≤ 42r + 8r
50 ≤ 50r
1 ≤ r
Or r ≥ 1.
The value of r is greater than or equal to 1.
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Convert 940 hours into a year Round answer to the nearest hundredth
Answer:
0.41 years
Step-by-step explanation:
940 hours is equivalent to 0.41 years. When rounded to the nearest hundredth, that would be 0.00 years. It is not possible to convert hours directly to years because they are different units of time measurement. Years are a measure of the time it takes for the Earth to orbit around the Sun, while hours are a measure of time within a day. To convert hours to years, you would need to know the number of hours in a year, which can vary depending on the number of days in the year and the number of hours in a day.
Answer:
Hi!
I think the answer you might be looking for is 0.11
I hope this helped you :)
Simplify the fractions, show your work
35/90
3/36
Answer:
Step-by-step explanation:
35/90 gets devided by 5
7/18
3/36 gets devided by 3
1/12
Answer:35/90 = 7/18
3/36=1/12
Step-by-step explanation:
for 35/90 you divide both sides by 5 giving you 7/18 and 3/36 you divde both by 3 giving you 1/12.
Hope this helped
Using the function f(x) = 7+ 4x, what is the value of f(-5) ?
Using the function f(x) = 7+ 4x, -13 is the value of f(-5).
What is function?A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable).
We might create a function with a set of persons as the domain X and a set of numbers as the codomain. For instance, if the codomain Y is the collection of whole integers, then define the function c so that its output, c(x), equals the number of offspring of every given x.
Four main categories may be used to classify different sorts of functions. dependent upon element Function is a one-to-one relationship, a many-to-one relationship, onto function, one-to-one and into function.
Given that,
f(x) = 7 + 4x
now, putting the value of f(-5), we get -
f(-5) = 7 + 4(-5)
or, f(-5) = -13
Using the function f(x) = 7+ 4x, -13 is the value of f(-5).
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PLEASE HELP!
determine the truth value of each conditional.
1. Explain your reasoning or give a counterexample. if a figure has four congruent angles then the figure is a square.
2. if the sidewalks are wet, then it has been raining.
3. Write a biconditional for the following conditional. Determine the truth value of the new statement. If two lines have the same slope, then they are parallel.
20 POINTS!!!!!!
Write 0.000000648 in scientific notation.
648 × 109
6.48 × 107
6.48 × 10−7
648 × 10−9
The scientific notation of the given number will be equal to 6.48 × 10⁻⁷. Hence, option C is correct.
What is a scientific notation?A way to express numbers that are either too large or too little to be conveniently stated in decimal form is through scientific notation. It is also known as "scientific form" in Britain because researchers, mathematicians, and engineers frequently use it for intricate calculations involving large numbers.
As per the given information in the question,
The given number is,
0.000000648
As we move towards the right of the given point then the power will be in negative form.
So, it can also be written as,
6.48 × 10⁻⁷
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the answer is C:
6.48 × 10−7
what is the difference between a squared number and a cubed number
this is the explanation above with some examples
AHH PLEASE HELP I NEED TO HAVE THIS DONE IN 30 MIN AND THIS IS THE QUESTION I NEED HELP WITH I WILL GIVE 95 POINTS AND MARK BRAINLIEST
A linear relationship is given.
The slope of the linear relastionship is ?
The slope of the linear relationship is 15.
Define slope.Slope is the inclination of a line with respect to the horizontal is measured numerically. The ratio of the vertical to the horizontal distance between any two points on a line, ray, or line segment is known as its slope in analytic geometry ("slope equals rise over run"). The slope of a line tangent to a function's graph in differential calculus is determined by the derivative of that function and serves as a representation of the function's instantaneous rate of change with regard to changes in the independent variable. The slope of a tangent line in the graph of a position function, which plots the distance travelled by an object against the passage of time, corresponds to the object's instantaneous velocity.
Given
A linear relationship is given.
y₁ = -9
y₂ = 6
x₁ = 0
x₂ = 1
Slope:
m = y₂ - y₁/x₂ - x₁
m = 6 + 9/1 - 0
m = 15/1
m = 15
The slope of the linear relationship is 15.
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Answer:
Slope = 15
Step-by-step explanation:
Now we have to,
→ find the slope of linear relationship.
Formula we use,
→ Slope(m) = (y2 - y1)/(x2 - x1)
Coordinates we use from table,
→ x1 = 0, y1 = -9
→ x2 = 1, y2 = 6
Then the required slope will be,
→ m = (y2 - y1)/(x2 - x1)
→ m = (6 -(-9))/(1 - 0)
→ m = (6 + 9)/1
→ m = (15)/1
→ [ m = 15 ]
Hence, the required slope is 15.
presence, a statistical issue, refers to the finding that a systematic relationship exists between the two variables of interest in the population. true false
Presence: a statistical issue, refers to the finding that a systematic relationship exists between the two variables of interest in the population.
The above statement is False.
Presence refers to the finding that there is a systematic relationship between two variables in the population of interest.
Direction means knowing if the relationship is positive or negative.
Strength means knowing how long the relationship will last.
Systematic relationship is also known as Covariance. Covariance is a statistical term that refers to the systematic relationship between two random variables such that changes in the other reflect changes in one.
The relationship between probability and statistics usually falls into one of three categories: deterministic, random, or statistical. Statistical relationships are a hybrid of deterministic and random relationships.
A deterministic relationship involves an exact relationship between two variables. For example, let's say you earn $10 an hour. Earn $10 more for every hour you work.The random relationship is a bit misleading, as there is no relationship between the variables. However, random processes may make it seem related. For example, he spent $20 in the lottery and he won $25. This "win" is a coincidence, but you might think that for every $20 he spends on tickets, he gets $25 more (which is wrong, of course). TheStatistical relation is a hybrid of his two relations above. This is a relationship that is part deterministic and part random. For example, there is a statistical relationship between caloric intake and weight gain. However, the relationship is not exact. How much weight you gain depends on many other factors as well as randomness.Learn more about systematic relationship:
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When Mike and Travis go fishing, the probability that Mike catches at least one fish is 23. The probability that Travis catches at least one fish is 35. The probability that both Mike and Travis catch at least one fish is 12.
Let M = the event that Mike catches at least one fish.
Let T = the event that Travis catches at least one fish.
Are M and T independent events? Why or why not?
A) yes, because P(M)×P(T)=P(M and T)
B) yes, because P(M)+P(T)>P(M and T)
C) no, because P(M)×P(T)≠P(M and T)
D) no, because P(M)+P(T)>P(M and T)
The correct option regarding the probabilities and if the events are independent is given as follows:
C) no, because P(M)×P(T)≠P(M and T).
How to calculate the probabilities?In the context of an experiment, a probability is calculated as the division of the number of desired outcomes in the context of the problem by the number of total outcomes in the context of the experiment.
The probabilities of at least one fish for each are given as follows:
Mike: P(M) = 2/3.Travis: P(T) = 3/5.The probability that both catch at least one is:
P(M and T) = 1/2.
The multiplication of the probabilities of each is given as follows:
P(M) x P(T) = 2/3 x 3/5 = 2/5.
Different from P(M and T), hence these are not independent events, and option c is correct.
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What is the simplified form of -24m^5 n^4/8m^-7 n^-2 ? Assume m≠0,n≠0.
[tex]-3m^{12}n^{6}[/tex] is the correct option
What is simplified form?
A fraction is a number that falls between the whole numbers but is not a whole number. It belongs to the entire. A fraction also consists of a denominator and a numerator. We obtain the fraction in its simplest form when both the numerator and denominator can no longer be independently reduced to any lower integer.
[tex](-24m^{5}*n^{4})/( 8m^{-7}*n^{-2} )\\[/tex]
taking [tex]m^{-7}*n^{-2}[/tex] in numerator to make [tex]m^{7}*n^{2}[/tex]
we get,
[tex]-3m^{4}*n^{4}*m^{7}*n^{2}\\-3m^{12}*n^{6}\\-3m^{12}n^{6}[/tex]
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A man spends 70% of his income and craves rs 2580 What is his income? Full explanation please
Answer:
• Statement of the given problem,
⚫ A man spends 70% of his income and saves Rs. 2550. What is his income?
According to above data,
⚫ the required income of the
given man
= 2550/(1 - 70/10)
☐ = 2550/0.30
= 8,500 (Rs) [Ans]
Harry owns a rare baseball card that is valued at $13.00. If he originally purchased the card for $5.00, by what percentage has its value increased?
Answer: The Value has increased by 800%
Step-by-step explanation:
Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options.
The true statements about the circle are
The radius of the circle is 3 units.The center of the circle lies on the x-axis.The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9. How to determine the true statements about the circle?From the question, we have the following parameters that can be used in our computation:
x² + y² - 2x - 8 = 0
Generally, To convert this equation to standard form, we need to complete the square.
First, we can rearrange the terms on the left-hand side of the equation so that all the x terms are together and all the y terms are together:
x² - 2x + y² - 8 = 0
Then, we need to add and subtract a value that allows us to rewrite x² - 2x term as a perfect square.
To do this, we take half of the coefficient of the x term (which is -2), square it, and add it to both sides of the equation:
So, we have
x² - 2x + (1²) + y² - 8 = 0 + (1²)
Evaluate
(x - 1)² + y² - 8 = 1
Finally, we can rearrange the terms
So, we have
(x - 1)² + y² = 9
Express 9 as the square of 3
(x - 1)² + y² = 3²
So, the standard form of the equation is (x - 1)² + y² = 3²
The standard equation of a circle is represented as
(x - a)² + (y - b)² = r²
Where
Center = (a, b)
Radius = r
When these equations are compared, we have
Center = (a, b) = (-1, 0)
Radius = r = 3
The point (-1, 0) lies on the x-axis
This means that the center is on the x-axis.
Also, it means that the radius of the circle is 3 units
This radius is the same for a circle that has the form x² + y² = 9
This is so because 9 can be expresses as the square or 3, and r = 3
Hence, the correct statements are (a), (b) and (e)
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Complete Question
Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true?
Select three options.
The radius of the circle is 3 units. The center of the circle lies on the x-axis. The center of the circle lies on the y-axis. The standard form of the equation is (x – 1)² + y² = 3. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.HELP ME PLEASE!!!!!!!!!
The length of a cell phone is 1.41.4 inches and the width is 3.43.4 inches. The company making the cell phone wants to make a new version whose length will be 1.541.54 inches. Assuming the side lengths in the new phone are proportional to the old phone, what will be the width of the new phone?
Answer:
Step-by-step explanation:7.48521878104
If the price of a certain stock is $55.00 per share and its earnings are $2.75 per share, what is the ratio of the earnings to the stock’s price in lowest terms?
The earnings-to-stock-price ratio in simplest terms is 20.
What is PE ratio?A stock's P/E ratio is calculated by dividing its price by its annual earnings per share.The P/E ratio assists investors in determining whether a company's stock is overvalued or undervalued in relation to its earnings. The ratio measures what the market is willing to pay for the company's current operations as well as its potential growth. If a company has a high P/E ratio, the market believes in its growth potential and is willing to overspend today based on future earnings.
Here given,
Stock price = $55.00
Earnings per share = $2.75
We have to find ratio od earnings,
The formula is,
Ratio is : P/E
By substituting the values,
Ratio = $55.00 / $2.75
= 20
