Ask question

Ask question

All categories

3 years ago

9

A ball is dropped from the top of a 50 ft. building. The function h(t)= -16t^2+50 models the height of the ball, h(t) (in feet),

at any given time, t (in seconds). Where is the ball after 0.5 seconds?

1 answer:

swat323 years ago

8 0

Answer:

h(.5)= -16(.5)^2 + 50

= 46

You might be interested in

Use the following function to find the value of each operation.

Murljashka [212]

<h2>Evaluating Composite Functions</h2><h3>Answer:</h3>

$w(f(m(2))) = 593$

<h3>Step-by-step explanation:</h3>

We can write how $w(f(m(x)))$ will be defined but that's too much work and it's only useful when we are evaluating $w(f(m(x)))$ with many inputs.

First let's solve for $m(2)$ first. As you read through this answer, you'll get the idea of what I'm doing.

Given:

$m(x) = -4x +1$

Solving for $m(2)$ :

$m(2) = -4(2) +1 \\ m(2) = -8 +1 \\ m(2) = -7$

Now we can solve for $f(m(2))$ , since $m(2) = -7$ , $f(m(2)) = f(-7)$ .

Given:

$f(x)=3x-1$

Solving for $f(-7)$ :

$f(-7)=3(-7)-1 \\ f(-7) = -21 -1 \\ f(-7) = -22$

Now we are can solve for $w(-22)$ . By now you should get the idea why $w(f(m(2))) = w(-22)$ .

Given:

$w(x) = x^2 -5x -1$

Solving for $w(-22)$ :

$w(-22) = (-22)^2 -5(-22) -1 \\ w(-22) = 484 -5(-22) -1 \\ w(-22) = 484 +110 -1 \\ w(-22) = 593$

8 0

3 years ago

15 is what percent of 70

podryga [215]

Answer:

21%

Step-by-step explanation:

15/70=21.14 round to 21

5 0

2 years ago

Read 2 more answers

Quadrilateral ABCD has coordinates A (3,5), B (5,2), C (8,4), D (6, 7).

siniylev [52]

Answer:

B. Square, because all four sides are congruent and adjacent sides are perpendicular

Step-by-step explanation:

A graph of your figure is below.

The figure is a square because

All four sides are congruent
Adjacent sides are perpendicular.

4 0

3 years ago

Read 2 more answers

Can someone please help me? Which one is the correct one?

adell [148]

your answer is going to be C

4 0

3 years ago

The drawing below shows circle B and circle E.Which equation best describes the relationship between BC and EF?

Svet_ta [14]

Answer:

BC = 3(EF)

Step-by-step explanation:

The question stated that AC is 3 times the length of DF.

7 0

2 years ago

Read 2 more answers