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3 years ago

Let f(x) = 4x-7 and g(x) = 2x + 5 Find f(g(x)). Not a multiple choice question.

1 answer:

5 0

So the equation to begin with looks like this: 4(2x+5)-7, and once you solve it: (8x+20)-7, and then to 8x+13. Thus 8x+13 is your answer.

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Evaluate the expressions<br> (2/7)^0=<br> (9)^0=

zysi [14]

(2/7)^0= 1
(9)^0=1
i think that's what your asking if not let me know

4 0

3 years ago

A competitive diver dives from a 33-foot high diving board. The height of the diver in feet after 't' seconds is given by u(t) =

ludmilkaskok [199]

Answer:

$t = 0.375s$

Step-by-step explanation:

Given

$h(t) = -16t^2 + 4t + 33$ --- driver 1

$Rate = 2ft/s$ -- driver 2

$height = 33ft$

Required

The time they passed each other

First, we determine the function of driver 2.

We have that:

$Rate = 2ft/s$ and $height = 33ft$

So, the function is:

$h_2(t) = Height - Rate * t$

$h_2(t) = 33 - 2t$

The time they drive pass each other is calculated as:

$h(t) = h_2(t)$

$-16t^2 + 4t + 33= 33 - 2t$

Collect like terms

$-16t^2 + 4t + 2t= 33 - 33$

$-16t^2 + 6t= 0$

Divide through by 2t

$-8t + 3= 0$

Solve for -8t

$-8t = -3$

Solve for t

$t = \frac{-3}{-8}$

$t = 0.375s$

7 0

2 years ago

VXYZ is a rectangle with a length of 20cm and a width of 12 cm. The length of the rectangle is increased by 30%. The width of th

katrin [286]

Step-by-step explanation:

the area is

length × width

increasing the length by 30% means multiplying the original length by 1.3.

increasing the width by 10% means multiplying the original width by 1.1.

so, the new area is (by using the old length and width)

length × 1.3 × width × 1.1 = length × width × 1.3×1.1 =

= old area × 1.3 × 1.1 = old area × 1.43

so, the area increases by 43%.

8 0

2 years ago

You’re given three angle measurements of 30°, 70°, and 80°. How many triangles can you construct using these measurements?

Katyanochek1 [597]

Only one cause it takes 180 degrees<span> to make a triangle so all you do is add it up</span>

6 0

3 years ago

I need help solving number 11 please.

Mnenie [13.5K]

set up the triangle with the information given. then just solve for x.

3 0

3 years ago