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Mandarinka [93]

3 years ago

11

The formula t=√h/4 represents the time t in seconds that it takes an object to fall from a height of h feet. If a rock falls fro

m a height of 125 feet, estimate how long it will take to reach the ground

1 answer:

raketka [301]3 years ago

8 0

Answer:

it would take 14mph

Step-by-step explanation:

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An someone please help!

mr Goodwill [35]

I hope this helps you

6 0

3 years ago

Hannah has a grid of squares that had 12 rows with 15 squares in each row. She colors 5 rows of 8 squares in the middle of the g

arlik [135]

there's a grid of squares with 12 rows and in each row there are 15 squares

from this grid she colours 8 squares from each row for 5 rows blue.

the rest of the squares she colours red

so first we have to find how many squares are there in the grid in total

so if each row has 15 squares

then 12 rows have - 15 x 12 = 180 squares

blue coloured squares

she colours 8 rows of 5 squares

so if 1 row has - 5 squares

then 8 rows have - 5 x 8 = 40 squares

from 180 squares, she colours 40 squares blue and the rest red colour

therefore the squares she colours red are

red squares = 180 - 40 = 140 squares

she colours 140 squares red

3 0

3 years ago

Read 2 more answers

PLSSS HELPPP!!!<br> i don’t know

Alexxx [7]

Answer:

Volume of a sphere is 4/3(pi r ^3)

You were given d = 10 so r = 5

4 0

3 years ago

F(x) = (2/5)^x g(x) = (2/5)^x– 3

Nastasia [14]

Letter C
The - 3 at the end of the function means the function is shifted down 3 units. This also shifts the asymptote down 3 units.

6 0

3 years ago

Read 2 more answers

A study is conducted to test the hypothesis that people with glaucoma have higher than average blood pressure. The study include

natali 33 [55]

Answer: The confidence interval would be (120.6, 159.4).

Step-by-step explanation:

Since we have given that

n = 200

mean = $\bar{x}=140\ mm$

Standard deviation = $\sigma=25\ mm$

At 95% confidence interval, z = 1.96

So, 95% confidence interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=140\pm 1.96\times \dfrac{140}{\sqrt{200}}\\\\=140\pm 19.40\\\\=(140-19.4,140+19.4)\\\\=(120.6,159.4)$

Hence, the confidence interval would be (120.6, 159.4).

4 0

4 years ago