3 years ago

I need help please ????!!!!

Mathematics

1 answer:

allsm [11]3 years ago

3 0

Answer:

x= -13

Step-by-step explanation:

because 2 squared is 4 and -13 + 4= -9

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Given that a truck can drive 25 miles with four gallons of gas, how many gallons does it need to drive 125 miles?

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John is skiing on a mountain with an altitude of 1200 feet. The angle of depression is 21 About how far does

Agata [3.3K]

Answer:

John ski down the mountain is 1285.37 feet.

Step-by-step explanation:

Given : John is skiing on a mountain with an altitude of 1200 feet. The angle of depression is 21.

To find : About how far does John ski down the mountain ?

Solution :

We draw a rough image of the question for easier understanding.

Refer the attached figure below.

According to question,

Let AB be the height of mountain i.e. AB=1200 feet

The angle of depression is 21 i.e. $\theta=21^\circ$

We have to find how far does John ski down the mountain i.e. AC = ?

Using trigonometric,

$\cos\theta = \frac{AB}{AC}$

$\cos(21)= \frac{1200}{AC}$

$AC=\frac{1200}{\cos(21)}$

$AC=1285.37$

Therefore, John ski down the mountain is 1285.37 feet.

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3 years ago

The center of the circle whose equation is (x + 2)² + (y - 3)² = 25 is

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Answer:

Step-by-step explanation:

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3 years ago

Find the range of the function<br> F(x) = (x-2)2 +2

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