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bearhunter [10]

3 years ago

7

Example of a rational number that is a square root

1 answer:

ipn [44]3 years ago

4 0

Answer:

The list of prime number would probably start with 1 ( 2, 3, 5,7)

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PLEASE HELP!!<br><br> Hhuhuhihihi

frozen [14]

Answer: adjacent and complimentary

Step-by-step explanation:

adjacent because they are next to each other and complimentary because they together make 90 degrees

3 0

2 years ago

Read 2 more answers

A ball is thrown vertically in the air with a velocity of 90ft/s. Use the projectile formula h=−16t2+v0t to determine at what ti

Debora [2.8K]

Answer:

$t=1.7 \ sec\ , t=4.0\ sec$

Step-by-step explanation:

<u>Vertical Throw</u>

It refers to a situation where an object is thrown verticaly upwards with some inicial speed v_o and let in free air (no friction) until it completes its movement up and finally returns to the very same point of lauch. The only acting force is gravity

The projectile formula is given as

$h=-16t^2+v_0t$

where t is time in seconds, h is the height in feet and v is the speed in ft/sec

We are required to find the time t where h=120 ft, knowing $v_o=90\ ft/sec$

$-16t^2+90t=120$

Rearranging

$-16t^2+90t-120=0$

This is a second-degree equation which will be solved with the formula

$\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$\displaystyle x=\frac{-90\pm \sqrt{90^2-4(-16)(-120)}}{2(-16)}$

$\displaystyle x=\frac{-90\pm \sqrt{1380}}{-32}$

Two solutions are obtained

$\boxed{t=1.7 \ sec\ , t= 4.\ sec}$

Both solutions are possible because the ball actually is at 120 ft in its way up and then when going down

6 0

3 years ago

Read 2 more answers

What is the volume of one cylinder?

suter [353]

If you need the radius or height I will send another picture

3 0

3 years ago

Read 2 more answers

72 ÷(11-3²) ÷ 3 but as a fraction

Temka [501]

Let's evaluate the quantity within the parentheses. (11 - 3^2) becomes (2). Then we have:

(72 divided by 2) / 3, or 36/3, or 12.

8 0

3 years ago

If g(x)=k×f(x) what is the value of k?

Olegator [25]

Answer:

k = g(x)/f(x)

Step-by-step explanation:

Unless there is more to the question, the answer is g(x) / f(x) = k

You just need to divide both sides by f(x)

Here's an example

f(x) = 20x + 40

g(x) = 80x + 160

k = g(x)/f(x) = (80x + 160) / (20x + 40) = 4*(20x + 40)/(20x + 40)

k = 4

8 0

3 years ago