All categories

3 years ago

Leyla drops a penny from a height of 150 m.

Mathematics

2 answers:

gizmo_the_mogwai [7]3 years ago

8 0

When the penny hits the ground, h will = 0.

So: Set h(t) = 0 = -4.9t^2 + 0t + 150 m

Then 4.9t^2 = 150, and so t^2 = sqrt(150 / 4.9) = plus or minus 5.53 sec.

We can use only the positive root, as we're measuring time.

t = 5.5 sec (answer)

Sav [38]3 years ago

5 0

Wrong question...

Answer:

The answer is 3.8

Step-by-step explanation:

You might be interested in

I need help trying to find out what is 73% of 83?

Ymorist [56]

Answer:

60.59

Step-by-step explanation:

73%=0.73

0.73*83=60.59

7 0

3 years ago

Read 2 more answers

Which of the following could be used to calculate the area of a sector in the circle shown below

lara [203]

Answer:

Therefore the Last option is correct

$\textrm{Area of Sector ACD}=\pi (8\ in)^{2}\times (\frac{42}{360})$

Step-by-step explanation:

Given:

Radius = r = 8 in

θ = 42°

To Find:

Area of Sector = ?

Solution:

We know that

$\textrm{Area of Sector}=\pi (Radius)^{2}\times \frac{\theta}{360}$

Substituting the given values in the formula we get

$\textrm{Area of Sector ACD}=\pi (8\ in)^{2}\times (\frac{42}{360})$

Which is the required Answer.

Therefore the Last option is correct

$\textrm{Area of Sector ACD}=\pi (8\ in)^{2}\times (\frac{42}{360})$

8 0

2 years ago

Given a line segment that contains the points A,B, & C in order, if AB = x, BC = x, and AC is equal to 36, then x = _____.

Bumek [7]

Answer:

a. 18

Step-by-step explanation:

AB+BC = AC

x + x = 36

2x = 36

x = 36/2

x = 18

6 0

2 years ago

A rental car costs $65 for one day plus an additional $0.35 per mile.

vredina [299]

Answer:

$105.25

Step-by-step explanation:

$0.35 x 115 = $40.25

$40.25 + $65 = $105.25

Have a great day!

5 0

2 years ago

Read 2 more answers

5) After paying $6.65 for a pizza, Alberto has

Sonja [21]

Answer:

$30.31

Step-by-step explanation:

In order to find the answer, you would need to add $23.66 plus $6.65.

Hope this helps and pls do mark me brainliest if you can:)

4 0

2 years ago

Read 2 more answers