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Lisa [10]
3 years ago
13

One survey estimates that,on average, the retail value of a mid sized car decreases by8% annually.if the retail value of a car i

s v dollars today,which expression represents the car value 1year later?
Mathematics
1 answer:
Sedbober [7]3 years ago
6 0
If the value is 100% of ' v ' today and it decreases 8% in a year,
then the value will be 92% of ' v ' 1 year later.  That's 0.92v .
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Need help please someone
salantis [7]

The answer to 9 would be (-3,-4) and (2,6) because if you plug in -3 for x in either of the equations and plug in 4 for y in the equations, both sides of the equation are the same number. also, if you plug in 2 for x and 6 for y both sides of the equation equal each other. The answer to 10 is (-1,1) and (7,33). if you plug them in they are equal:)

4 0
3 years ago
A ball is thrown straight up from a height of 3 ft with a speed of 32 ft/s. Its height above the ground after x seconds is given
IceJOKER [234]

Answer:

19ft

Step-by-step explanation:

Given the height of a ball above the ground after x seconds given by the quadratic function y = -16x2 + 32x + 3, we can find the maximum height reached by the ball since we are not told what to look for.

The velocity of the ball is zero at maximum height and it is expressed as:

V(x) = dy/dx

V(x) = -32x+32

Since v(x) = 0

0 = -32x+32

32x = 32

x = 32/32

x = 1s

Get the height y

Recall that y = -16x² + 32x + 3.

Substitute x = 1

y = -16(1)²+32(1)+3

y = -16+32+3

y = -16+35

y = 19ft

Hence the maximum height reached by the ball is 19ft

7 0
3 years ago
Which of the following scenarios is best represented by the scatter plot above?
Marina CMI [18]

Answer: B

Step-by-step explanation:

negative correlation so as x increases y decreases,

as population rises houses should rise, not A

as buildings rise, need more space and less trees, B is the answer

as cars rise population should rise, not C

no correlation, not D

4 0
3 years ago
Solve for a side in right angles picture added
Scrat [10]
I think it’s 160
Because 90+70=160
7 0
3 years ago
Read 2 more answers
If f(x) = 3x - 7, find f(-1)
Aleksandr [31]
-1 = 3x - 7
Add +7 to each side
6 = 3x
Divide each side by 3
X = 2


f(-1) = 3 * 2 - 7
4 0
3 years ago
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