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2 years ago

Im taking a big state wide test for my high school math class wish me luck :)

Mathematics

1 answer:

polet [3.4K]2 years ago

5 0

You got this!!!! just don’t rush, if you really don’t know the answer, just chose letter C hahah :)

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Jana is training for a triathlon. If Jana biked at a constant rate, how many miles did she bike in the first 15 minutes?

Harman [31]

In order to answer, I would first need to know Jana's speed, not that she biked at a constant rate.

7 0

3 years ago

Theo can paint a fence three times as fast as his sister can. Working together, they can paint a fence in 9 hours. How many hour

Deffense [45]

Answer:

12 hours

Step-by-step explanation:

Let Theo's siste can paint a fence in x times

Given.

Theo can paint a fence three times as fast as his sister can. Working together, they can paint a fence in 9 hours.

$\frac{1}{x}+\frac{1}{3x} =\frac{1}{9}\\\frac{3+1}{3x} =\frac{1}{9} \\\frac{4}{3x}=\frac{1}{9}$

Apply cross multiplication

$x=\frac{9\times 4}{3}\\x=\frac{36}{3} \\x=12hours$

Theo’s sister to paint the fence in 12 hours.

8 0

3 years ago

An airplane pilot can see the top of a traffic control tower at a 20 degree angle of depression. the airplane is 5,000 feet away

daser333 [38]

The given question describes a right triangle with with one of the angles as 20 degrees and the side adjacent to the angle 20 degrees is of length 5,000 feet. We are looking for the length of the side opposite the angle 20 degrees.

Let the required length be x, then

$\tan{20^o}=\cfrac{opp}{hyp}=\cfrac{x}{5,000}\\ \\ \Rightarrow x=5,000\tan{20^o}=1,819.85$

Therefore, the height of the airplane above the tower is 1,819.85 feet.

8 0

3 years ago

Read 2 more answers

Answer number 58 and answer it CORRECTLY please

Dmitriy789 [7]

The answer is 11 cause if you count the white cubics you get 11 and if you count the shadow with it would be 38 and there is only 11 19 28 171
but i might be wrong

7 0

3 years ago

V is greater than or equal to 5

Citrus2011 [14]

Answer:

greater

Step-by-step explanation:

3 0

3 years ago