Ask question

Ask question

All categories

2 years ago

12

Water coming out from a fountain is modeled by the function f(x) = -x2 + 6x + 6 where f(x) represents the height, in feet, of th

e water from the fountain at different times x, in seconds.
A. The water travels an average distance of 4 feet from 2 seconds to 5 seconds.

B. The water travels an average distance of 1 foot from 2 seconds to 5 seconds.

C. The water falls down with an average speed of 2 feet per second from 2 seconds to 5 seconds.

D. The water falls down with an average speed of 1 foot per second from 2 seconds to 5 seconds.

1 answer:

valentinak56 [21]2 years ago

6 0

I think that the only right answer is the last one D. The water falls down with an average speed of 1 foot per second from 2 seconds to 5 seconds.

You might be interested in

How many sides does a regular polygon have if each of its interior angles is 165 degree.

hoa [83]

24
Complete step-by-step answer:
Thus, the regular polygon with interior angle each measuring 165∘ is a 24-sided polygon.

6 0

2 years ago

Write the correct verb

Dafna1 [17]

Answer:

Will

Step-by-step explanation:

The key word in this sentence is tomorrow, because tomorrow is in the future, therefore your answer is will.

6 0

3 years ago

How many seconds will light leaving Los Angeles take to reach the following locations (a) San Francisco (about 500km), (b) Londo

kondor19780726 [428]

Answer:

a) It takes 0.0017s for the light to reach San Francisco.

b) It takes 0.033s for the light to reach London.

c) It takes 1.334s for the light to reach Mars.

d) It takes 149.7s for the light to reach Venus.

Step-by-step explanation:

Here we can solve this problem by using this following formula:

$s = \frac{d}{t}$

In which s is the speed(in km/s), d is the distance(in km) and t is the time(in s).

The light speed is 299 792 458 m / s = 299,792.458 km/s, so $s = 299,792.458$

(a) San Francisco (about 500km)

Find t when $d = 500$ . So

$s = \frac{d}{t}$

$299,792.458 = \frac{500}{t}$

$299,792.458t = 500$

$t = \frac{500}{299,792.458}$

$t = 0.0017s$

It takes 0.0017s for the light to reach San Francisco.

b) London(about 10,000km)

Find t when $d = 10,000$ . So

$s = \frac{d}{t}$

$299,792.458 = \frac{10,000}{t}$

$299,792.458t = 10,000$

$t = \frac{10,000}{299,792.458}$

$t = 0.033s$

It takes 0.033s for the light to reach London.

(c) the Moon (400,000km)

Find t when $d = 400,000$ . So

$s = \frac{d}{t}$

$299,792.458 = \frac{400,000}{t}$

$299,792.458t = 400,000$

$t = \frac{400,000}{299,792.458}$

$t = 1.334s$

It takes 1.334s for the light to reach Mars.

(d) Venus (0.3 A.U. from Earth at its closest approach).

Each A.U. has 149,59,7871 km.

So 0.3 A.U. = 0.3*(149,597,871) = 44,879,361.3. This means that $d = 44,879,361.3$ . So:

$s = \frac{d}{t}$

$299,792.458 = \frac{44,879,361.3}{t}$

$299,792.458t = 44,879,361.3$

$t = \frac{44,879,361.3}{299,792.458}$

$t = 149.7s$

It takes 149.7s for the light to reach Venus.

3 0

3 years ago

At a family reunion, each of Eddie's aunts and uncles is getting photographed once. The

sveticcg [70]

Answer:

Step-by-step explanation:

It will just be 12, since the uncles can go in one group and fit 12 uncles, and than the aunts can get photographed in 2 groups that add up to 12

4 0

3 years ago

goblinko [34]

<span>3(x + 5) = 3 · x + 3 · 5</span>

6 0

3 years ago

Read 2 more answers