Answer:
z = [tex]\frac{1}{5}[/tex], z = 3
Step-by-step explanation:
The absolute value function always returns a positive value.
However, the expression inside can be positive or negative, that is
5z - 8 = 7 ( add 8 to both sides )
5z = 15 ( divide both sides by 5 )
z = 3
OR
- (5z - 8) = 7
- 5z + 8 = 7 ( subtract 8 from both sides )
- 5z = - 1 ( divide both sides by - 5 )
z = [tex]\frac{1}{5}[/tex]
As a check
Substitute these values into the left side of the equation and if equal to the right side then they are the solutions
z = 3
left side = | 15 - 8 | = | 7 | = 7 = right side
z = [tex]\frac{1}{5}[/tex]
left side = | 1 - 8 | = | - 7 | = 7 = right side
Thus z = [tex]\frac{1}{5}[/tex], z = 3 are the solutions
The area of a circle is given by A = πr^2 , where π = 3.14 and r is the radius of the circle. Determine the area of a circle with radius 14.2 cm. Round your answer to the nearest tenth.
Answer:
The area of the circle is 1988.1 cm.
Step-by-step explanation:
You basically have all of the instructions on how to do this in the question.
Multiply 3.14 by the radius. 3.14 x 14.2 = 44.588Now you just have to square it. 44.588^2 = 1988.0897.And lastly we have to just round it to the nearest tenth. Rounded = 1988.1.I hope I helped.
Brainliest would be appreciated.
PLEASE HELP 100 POINTS! D) How do you calculate the he residuals for a scatter plot?
E) calculate the residuals for you scatter plot in step 2d (the picture of the graph is attached) I’ll give brainliest if you answer both! :)
Answer:
PLEASE HELP 100 POINTS! D) How do you calculate the he residuals for a scatter plot?
E) calculate the residuals for you scatter plot in step 2d (the picture of the graph is attached) I’ll give brainliest if you answer both! :)
“To find the residual, you would subtract the predicted value from the measured value so for x-value 1 the residant would be” is how you would find the answer.
True or False.
A dilation is defined by a scale factor.
Answer:
True
Step-by-step explanation:
The answer will be true for the following question.
True or False.
A dilation is defined by a scale factor.
Hope this helps
Answer:
True would be your answer. Hope this helps. : )
Step-by-step explanation:
Explain at least 3 Properties of 0.
Answer:
Zero is even (not odd, not neutral)
Zero is neither positive nor negative (the only number with this property)
Zero is an integer (and must be considered when question limits choices to integers)
Zero is a multiple of all numbers (x*0 = 0, so a multiple of any x)
Step-by-step explanation:
Any number to the power of 0 is equal to 1. 0 is neither positive nor negative. 0 is neither prime nor composite. If you add two numbers and the sum is zero, we call the two numbers additive inverses or opposites of each other.
Ahmed wrote two numbers. The first number has a 7 in its tenths place. The
second number has a 7 with a value that is 1,000 times greater than the value of
the 7 in the first number. In which place is the 7 in the second number?
1) tens
» hundreds
» thousands
1) hundred thousands
Done →
Answer: i think the answer is B thousands
Step-by-step explanation:
Need help asappp
Find the surface area of a triangular prisms, base measures 10 cm, height measures 12 cm, sides measure 13 cm
Answer:
552
Step-by-step explanation:
The triangle is created by the path that Julie walks from home, to school, to the park then back to home . How many miles is the perimeter of her walk?
Answer:
2.4+2.1+1.5=6
Step-by-step explanation:
Took the test
The number of miles that he walked will be 6 miles.
What is the triangle?The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.
The perimeter of the triangle is determined by adding together all of its sides.
The perimeter of her walk is calculated as,
P = 2.4 + 2.1 + 1.5
P = 6 miles
More about the triangle link is given below.
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7. The distance between point (–4, 5) and another point is 10. What are the possible
coordinates of the other point?
A (2, 2)
B (2, 3)
C (2, –3)
D (–2, –3)
Answer:
D (-2, -3)
Step-by-step explanation: The distance is 10 units, so you take -4 (x) and go over 2 spaces so your at x = -2, and 2 units are down, 8 more to go. Then for (y) you do 5-8 and get -3 so now y = -3 . Now you have moved 10 spaces because 2 + 8 = 10 spaces, and are left at D (-2, -3).
Which of the following is true for the statement "7 is an odd number"?
A)
It's a compound statement.
B)
It's a closed statement.
C)
It's an open statement.
D)
It's both an open and closed statement.
Answer:
C - it is a open statement
Step-by-step explanation:
Answer:
A) It's a compound statement.
Step-by-step explanation:
The volume of this square pyramid is 200in^3. Find the value of x.
Answer:
x = 5 in.
Step-by-step explanation:
Volume = 1/3 * area of the base * height
200 = 1/3 * 8*15 * x
200 = 40x
x = 5 in.
A survey was taken of 75 potential voters, asking them which candidate they would vote for in a local election. The
results are given in the table below.
CANDIDATE NUMBER OF SUPPORTERS
x
41
Y
14
Z
20
If 2,000 people vote in the actual election, which is the best prediction for the number of votes for candidate X, based
on the results of this poll?
41
670
800
1.100
Answer:
41 is the right answer!
In ΔIJK, the measure of ∠K=90°, KJ = 63, IK = 16, and JI = 65. What ratio represents the cosecant of ∠I?
Answer:
1/5
Step-by-step explanation:
Answer:
65/63.
Step-by-step explanation:
65 is the hypotenuse, and JK is opposite angle < I so
csc < I = hypotenuse / opposite side
= 65/63.
A 20-inch bicycle has tires with a diameter of 20 inches. What is the circumference of these tires?
31.4 inches
62.8 inches
314 inches
1256 inches
Answer:B
Step-by-step explanation:
c=2nr or c=nd
2*3.14 * 10= 62.8
3.14 * 20= 62.8
The circumference of the tires is 62.8 inches.
What is Circumference?Circumference of a circle is defined for non straight curves which is the length of the boundary of the curve.
Given that, a 20-inch bicycle has tires with a diameter of 20 inches.
Diameter of the tire = 20 inches.
Radius of a circle or a circular object is half of the diameter of it.
Radius of the tire = 20 / 2 = 10 inches
Circumference of a circular object = 2πr, r is the radius.
Circumference of the tire = 2π r
= 2 (3.14) (10)
= 62.8 inches
Hence the circumference of a bicycle tire is 62.8 inches.
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math question screenshot down below
In that school, what is the ratio of the number of students who like math to the number of students who like science? (see picture)
Answer: 1/2:1/3
I hope this helps
Step-by-step explanation:
In the problem it says 1/2 of the students in the school like math, and it also says in the problem that 1/3 of the students in the school like science. The question is asking for a ratio of students who like math to students who like science, so now the only thing you need to do is input those 2 numbers in the order that they want it in. Which is 1/2:1/3. And don't forget that the colon : is what you always put in between the two numbers.
If this helped you please mark as brainliest :)
The regular hexagon has a radius of 4 in.
What is the approximate area of the hexagon?
O 24 in.2
0 42 in.2
048 in 2
084 in 2
4 in
Answer:
42
Step-by-step explanation:
A=33
2a2=3·3
2·42≈41.56922
Answer:
42
Step-by-step explanation:
Select the correct answer.
Solve the equation by completing the square.
x^2 - 18x + ___ = 4 + ___
Answer:
A!!!!
Step-by-step explanation:
Math question down below
Answer:
E
E is the only one that ends with 70 and is also all multiples of 6.
What is the slope of a line PARALLEL to the graph?
b. 0
C. 3
d.
31
2
-2
0
6
В
D
Answer:
Step-by-step explanation:
hello :
this line passes trough A(1,1) and B(2,4)
the slope is : (YB - YA)/(XB -XA)
(4-1)/(2-1) = 3/1
the slope is : 3.....answer : C (parallal means : same slope)
No es sano que los perros tengan en la sangre niveles altos de colesterol. Debido a que una dieta rica en grasas saturadas incrementa el nivel de colesterol, es plausible que los perros domésticos tengan niveles más altos que los perros que pertenecen a una clínica de investigación veterinaria. En consecuencia, los niveles de colesterol “normales” basados en los perros de la clínica pueden ser engañosos. Una clínica comparó perros sanos de su propiedad con perros sanos llevados a la clínica para ser esterilizados. Los estadísticos de resumen de los niveles de colesterol en la sangre (en miligramos por decilitro de sangre) son los siguientes: GRUPO N PROMEDIO S Perros domésticos 26 n= promedio=193 s=68 Perros de la clínica n=23 promedio=174 s=44
Answer:
Le sskua pee yu kenij goj qwe quack zen xids bwebwe gugugaga
(4) to the power of negative 2 simpfiled
Answer:
0.0625
Step-by-step explanation:
choose the function whose graph is given by:
Answer:
Option C
(would really, reallly appreciate the brainliest)
Step-by-step explanation:
plotted with desmos (free online math tool)
The function whose graph is given is y = 0.5cosx
What is a function?A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
Given that, a graph we need to find its function,
To analyze the given graph let us,
compare the given to a known, standard functiontake maxima and minima points from the graph and analyze them.From the given graph we can pick the points which can tell us about the nature of the cosine function we took,
It is clear from the graph that the function plotted is equal to the standard function i.e. cos(x)
in cos(x) ⇒ we have minima at (-π, 1)
in the given graph, the function has a maximum and touches the y-axis at (0, 0.5)
Therefore, 0.5cosx is the function represented in the graph.
Learn more about function click;
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A runner won a 100-meter race with a time of 9.73 seconds. How can you use place value to explain this time?
Answer: The runner is going exactly 10.2774922919 meters per second
Step-by-step explanation: Using the ratio 100:9.73, we can simplify that to 10.2774922919:1
Solve this system of linear equations. Separate
the x- and y-values with a comma.
6x + 3y = -21
12x + 8y = -52
Enter the correct answer.
Answer:6.71
Step-by-step explanation:
Median income is the
A. the middle income reported
B. income in the middle of the data set when incomes are arranged from least to greatest
C. total incomes reported divided by the total number of people surveyed
D. income reported most frequently
Median income is the income in the middle of the data set when incomes are arranged from least to greatest.
What is the median income?Median is a measure of central tendency that is used to describe the number that is in the middle of a set of numbers that are arranged either in ascending or descending order
For example, the income of 3 workers for march are : $1000, $5000, $10,000. The median income is $5000.
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help please find the volume
Answer:
[tex]312 inches^{2}[/tex]
Step-by-step explanation:
The formula to work out the area of a triangle is : [tex]\frac{base*height}{2}[/tex]
to find the volume of this shape you would first need to work out the area of the triangle. You can do this by first multiplying the base of 6 by the height of 8, this gives you 48. The next step in working out the area is to divide 48 by 2, this gives you 24. This is because by multiplying the base by the height you are working out the area of a square with the same dimensions, and so will need to be divided by 2 to work out the area of the triangle. Now that you have worked out the area you can now work out the volume. To do this you would simply multiply the area of 24 by the height of 13, this gives you 312.
Working out the area:
1) Multiply 6 by 8.
[tex]6*8=48[/tex]
2) Divide 48 by 2.
[tex]48/2=24[/tex]
Working out the volume:
1) Multiply 24 by 13.
[tex]24*13=312 inches^{2}[/tex]
Please help me ASAP will mark best answer brainliest
Answer:
4.) Silvia had the greater variation in her race results for the season because she has a higher standard deviation.
Step-by-step explanation:
hope this helps!!! :)
Below is the graph of equation y=− |x−2| +2. Use this graph to find all values of x such that y>0
Answer:
Value of y > 0 at [tex]x = \{0, 1, 2, 3, 4\}[/tex]
Step-by-step explanation:
As seen from the graph attached in answer area as well, The graph is above x-axis (i.e. y value of equation) only when x has values {0, 1, 2, 3, 4}.
At x = 0:
[tex]y = -|0-2| + 2 \\\Rightarrow -2 + 2\\ \Rightarrow y = 0[/tex]
At x = 1:
[tex]y = -|0-1| + 2 \\\Rightarrow -1 + 2\\ \Rightarrow y = 1[/tex]
At x = 2:
[tex]y = -|2-2| + 2 \\\Rightarrow 0 + 2\\ \Rightarrow y = 2[/tex]
At x = 3:
[tex]y = -|3-2| + 2 \\\Rightarrow -1 + 2\\ \Rightarrow y = 1[/tex]
At x = 4:
[tex]y = -|4-2| + 2 \\\Rightarrow -2 + 2\\ \Rightarrow y = 0[/tex]
Value of y > 0 at [tex]x = \{0, 1, 2, 3, 4\}[/tex]
What is the completely factored form of f(x) = x^3 – 2x^2 – 5x + 6?
Answer:
D
Step-by-step explanation:
Answer:d
Step-by-step explanation:
i just need the work for 11 & 12. i know the answer for 11 is (16,4) and 12 is (5,7) but i don’t know how to work it out to get those answers. (solving a system of linear equations)
Answer:
Step-by-step explanation:let x be the number of bicycles,
let y be the number of tricycles
given x+y=20→equation 1
also given 2x+3y=44→equation 2
from eq 1, y=20-x
substitudin ineq 2
2x+3(20-x)=44
2x+60-3x=44
60-x=44
-x=44-60
=-16
x=+16
then y=20-16=4
no of bicycles=16
no of tricycles=4
hope this helps
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