In a survey of 3,500 people who owned a certain type of car, 1,225 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?
Write 8 as a percentage of 32
Plssss helppp
Answer:
25% of 32 is 8
Step-by-step explanation:
[tex]\frac{x}{100} * 32 = 8\\\\x = 25%[/tex]
Therefore, 25% of 32 is 8.
8 is 25% of 32.
What is percentage?A percentage is a number or ratio that can be expressed as a fraction of 100.
We know that, 8/32=1/4
in percentage form, 8 of 32= 1/4×100
=25%
Hence, 8 if 25% of 32.
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Which of the following is the best approximation of the volume of the cylinder below?
Use 3.14 for π
Answer:
sana Po nakatulong
stay safe po
Find the equation of the line that passes through the points A (2, 3) and B (5, -7)
Answer:
10x+3y=29
Step-by-step explanation:
Given points:(x1,y1)=(2,3)
(x2,y2)=(5,-7)
We know, the equation of line passing through two points is given by,
y-y1={(y2-y1)/(x2-x1)}*(x-x1)
Hence,y-3={(-7-3)/(5-2)}*(x-2)
or,y-3=(-10/3)*(x-2)
or,3y-9= -10x+20
or,3y+10x=20+9
or,10x+3y=29 is the required equation.
Graph the function.
y = 2x^2 + 4x
Answer:
Step-by-step explanation:
The function y = 2x^2 + 4x has a parabolic graph that opens up.
*In factored form we have y = 2x(x + 2); if we set this equal to zero and solve for x, we obtain {-2, 0}, the roots of this function.
*The axis of symmetry is halfway between these roots: x = -1. The y-value of the vertex is the value of the function at x = -1: f(-1) = 2(-1)^2 + 4(-2) = -6. Thus, the vertex is (-1, -6).
* The y-intercept is (0, 0), since y = 0 when x = 0.
Graph the points shown and draw a smooth curve through them, remembering that this parabola opens up.
10. How many solutions does this system of equations have? Explain how you know.
y = -4x + 3
2x + 8y = 10
What is the smallest perimeter a rectangle of area 12 cm can have?
A.12 cm
B.14 cm
C.16 em
D.26 cm
Answer:
14 cm
Step-by-step explanation:
The maximum area of a rectangle (actually square) with a perimeter of 14 can have is 12.25 cm². So the smallest perimeter a rectangle of 12 cm² i just a little below 14 cm, namely 4sqrt(12) = 13.86 cm.
What is the pre image vertices?
Answer:
you divide all the numbers so the triangle will be at -2.5x, 1x and 2y and the rectangle is multiplied by 2 so 5x and 4y
Step-by-step explanation:
Write an exponential function in the form y = ab" that goes through points (0,7)
and (9,3584).
Answer:
Step-by-step explanation:
I'm going to assume you meant y = ab^x. If this is not correct, leave a comment.
x = 0
y = 7
7 = a * b^0
anything to the zero power is 1
y = a*b^0
y = a*1
7 = a
So far what you have is
y = 7 * b^x
Now let
x = 9
y = 3584
3584 = 7 * b^9 Divide by 7
3584/7 = b^9
512 = b^9
If you knew how to use logs, that would be the surest way to do this question. However I'm going to make an assumption again and assume that you have not taken those yet.
So the easiest way is to find out what raised to the 9th power will equal 512
Could b = 5?
5^9 = 1 million 9 hundred thousand something. 5 is far too big. Make sure you understand why. 1 million is far greater than 512
So let's try b = 3
3^9 = 19 thousand which is still far too big. 19 thousand something is far larger than 512.
We have just one more number that we can try.
2^9 = 512 and we have it
Answer y = 7*2^x
Helppp please and thank you!!
Answer:
Step-by-step explanation:
3,-3
PLS ANSWER ASAP DUE AT 9:20
Answer:
option B
Step-by-step explanation:
[tex]16x + 20y = (4 \times 4x) + (4 \times 5y) = 4 \times (4x + 5y)[/tex]
A sum of money is shared in the ratio of 2: 5 between Mark and Peter, respectively. If Mark got $200, how much money did Peter receive?
Answer:
Step-by-step explanation:
Set this up as a proportion of M:P
[tex]\frac{M}{P}:\frac{2}{5}=\frac{200}{x}[/tex] and cross multiply to solve for x:
2x = 1000 so
x = 500. Peter got $500
Write an equation for the line that is parallel to the given line and that passes through the given point. y = 1/2x - 8; (-6, -17).
Answer:
y = 1/2x - 14
Step-by-step explanation:
Parallel lines have the same gradient
So,
gradient for second line = gradient of the first line = 1/2
Also,
the line passes through (-6,-17)
So, we can find the y-intercept by substitution
y = mx + c
-17 = (1/2 * -6) + c
-17 = -3 + c
c = -14
So,
the equation is y = 1/2x - 14
geometric probability
PLEASE HELP!
Answer:
Step-by-step explanation:
The red sections are sectors of the circle. We need that area. We'll find one then multiply it by 2, since they're both the same.
[tex]A_s=\frac{60}{360}\pi (4)^2\\A_s=\frac{1}{6}\pi (16)\\A_s=8.377[/tex]and now we multiply it by 2 to get the red area:
[tex]A_s=16.754[/tex]
And now the area of the circle:
[tex]A_c=\pi (4)^2\\A_c=16\pi\\A_c=50.265[/tex] and now divide to get the percentage:
[tex]\frac{16.754}{50.265}*100=[/tex] 33.3%
Question
The average of 10 numbers in a list is 16. If two of the numbers in the list are each increased by 5, by how much will the average of the 10 numbers in the list be increased?
[please help]
Answer:
Step-by-step explanation:
Lets understand what the question says:-
Mean or average in a list=16
Total sum of observations= x
Equation:-
x/10=16
x=160
If 2 numbers are increased by 5 that means
New sum of observations=160+10=170
Therefore,
New average or new mean=170/10=17
Therefore the average gets increased by 1
A farmer stores chicken feed in cartons. Together, 3 cartons hold 9 cubic feet of space in all. How many cartons does the farmer need to store a total volume of 72 cubic feet of chicken feed?
Answer:
45
Step-by-step explanation:
because 3 x 9 is 27 and then your gonnna want to subtract 72 and 27 and that really how i got 45 by multiplication and subtraction sorry if it wrong
Solve the inequality.
1
x+5 < 6
2
Help me please
Answer:
If we are solving x + 5< 6 the inequality is x< 1
Step-by-step explanation:
If helps mark as brainllest please!!!
18 divided by under root 18
Answer:
18
√18
=3√2(Decimal: 4.242641)
Which?
A
B
C
D
Help me for 20 points!!!
Answer:
8/5
Step-by-step explanation:
7 3/10-5 7/10=8/5
Question 17 of 33
Which of the following terms best describes a group of equations in which at
least one equation is nonlinear, all of the equations have the same variables,
and all of the equations are used together to solve a problem?
A. System of linear inequalities
B. System of nonlinear equations
C. System of linear equations
D. System of nonlinear inequalities
Answer:
C
Step-by-step explanation:
i took the test
A jar of marbles has three blue marbles, four red marbles, and two green marbles, what is the possibility of drawing a marble that is green or not red?
1/3
4/9
5/9
2/3
Answer:
5/9
Step-by-step explanation:
There are 9 marbles total (3+4+2). There are 2 green marbles and 3 blue marbles (not red). The total fraction will be 5/9.
Two-thirds of a number is 5 more than half of it . What is the number ?
Answer:
2.50 is the answer of the question
Round to the nearest cent or whole number as needed.
The price of a bracelet is $1.29. If the tax rate is 5%, find the total cost of the bracelet
Answer:
Cost of bracelet = $1 and 35 cents
Step-by-step explanation:
Price before tax = $ 1.29
Tax Price = 5% of 1.29
[tex]=\frac{5}{100} \times 1.29\\\\= 6.45 \times \frac{1}{100} \\\\= 0.0645[/tex]
Therefore price after tax = 1.29 + 0.06245 = 1.3545
Ans : cost of bracelet = $1 and 35 cents
On a coordinate plane, a curved line with minimum values of (negative 1.5, negative 2) and (1.5, 2), and a maximum value of (0, 4), crosses the x-axis at (negative 2, 0), (negative 1, 0), (1, 0), and (2, 0), and crosses the y-axis at (0, 4).
Which is an x-intercept of the graphed function?
(0, 4)
(–1, 0)
(4, 0)
(0, –1)
Answer:
It's (-1,0)
Step-by-step explanation:
Just did the question.
Answer:(-1,0)
Step-by-step explanation:
Which equation gives the volume of the sphere?
O V=2/3(27ń)
O V=4/3(27)
O V= 2/3 (27)
O V= 4/3 (27ń)
Answer:
The correct option is (b).
Step-by-step explanation:
A sphere and a cylinder have the same radius and height,
The volume of cylinder is,
[tex]V=\pi r^2 h\\\\V=\pi r^3[/tex]
ATQ,
The volume of cylinder is 27 cubic units.
[tex]\pi r^3 = 27[/tex]
The formula for the volume of a sphere is given by :
[tex]V=\dfrac{4}{3}\pi r^3\\\\V=\dfrac{4}{3}\times 27[/tex]
So, the correct option is (b).
Use substitution to solve the
following system of equations.
- 4y - 5x = 30 AND x= y + 3
Answer:
The solution to the system of equations is y = -5 and x = -2.
Step-by-step explanation:
The question tells us to use substitution to solve the system. This means that the given value for x (in terms of y) should be substituted into the other equation. This is modeled below:
-4y - 5x = 30
-4y - 5(y+3) = 30
Next, we should use the distributive property to simplify the left side of the equation.
-4y -5y - 15 = 30
The next step is to combine like terms on the left side of the equation.
-9y - 15 = 30
Then, we can add 15 to both sides of the equation.
-9y = 45
Finally, we can divide both sides of the equation by -9.
y = -5
To find the value for x, we substitute in the value we just found for y into either of our original equations.
x = y + 3
x = -5 + 3
x = -2
Therefore, the correct answer is y = -5 and x = -2.
Hope this helps!
Which graph shows a polynomial function of an even degree?
the answer is the first graph, A
help with the question
3. What are the features of an Informative Text?
a. topic sentence, supporting details and clinching sentence
b. introduction, body and conclusion
c. unity, completeness, coherence and emphasis/order
d. informal and incomplete
One of the angles formed by two intersecting lines is 40°. What is the measure of the other three angles?
Answer:
Hello! answer:
140, 140 and 40
Step-by-step explanation:
140 + 140 + 40 + 40 = 360
The other three angles would measure to 140, 140 and 40 Hope that helps!
