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4 years ago

What is the cost per day of renting a car from a one

Mathematics

1 answer:

LenaWriter [7]4 years ago

7 0

Answer:

It ranges from $45 to $65 dollars a day. Im pretty sure

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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:

Vertical Throw

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

Find the length of arc AB for each circle.

Eddi Din [679]

Answer:

see explanation

Step-by-step explanation:

The length of the arc is calculated as

AB = circumference of circle × fraction of circle

(11)

AB = 2πr × $\frac{90}{360}$

= 2π × 7 × $\frac{9}{36}$

= 14π × $\frac{1}{4}$

= $\frac{7}{2}$ π in

(12)

AB = 2πr × $\frac{135}{360}$ ( r = 20 ÷ 2 = 10 )

= 2π × 10 × $\frac{3}{8}$

= 20π × $\frac{3}{8}$

= $\frac{60}{8}$ π

= $\frac{15}{2}$ π cm

8 0

3 years ago

How do I do the bus stop method?

hichkok12 [17]

The bus stop method is just like division.
Ex
137÷5=
1.) 5 goes into one zero times so there is a zero on top.
2.) 5 goes into 13 two times, so after the zero there is a 2.
3.) 5 goes into 37 seven times so there is a 7 after the 2.
4.) There is a 2 left and five can't go into school therefore that is a remainder.

027R2
5/137
- 10
37
-35
2
Hoped I helped:D

6 0

4 years ago

If the prism has 3 layers, what would the volume of the

RUDIKE [14]

Answer:

OD) 16 cubic centimeters

3 0

3 years ago

How many inches are in 2\1 2 feet?

mamaluj [8]

Answer:

30 inches

Step-by-step explanation:

1 ft= 12 inches

12×2= 24

1/2 of 12 is 6

24+6=30

30 inches

3 0

3 years ago

Read 2 more answers