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3 years ago

You walk 2 miles in 1/2 an hour at that rate how long will it take to walk 3 miles?

Mathematics

1 answer:

In-s [12.5K]3 years ago

6 0

Answer:45 minutes

Step-by-step explanation:since you walk 4 miles an hour in half of one you walk 2

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Ships A and B are 1,425 feet apart and detect a submarine below them. The angle of depression from ship A to the submarine is 59

andreyandreev [35.5K]

Answer: The distance from ship B to the submarine is 1270.68 feet and the distance from ship A to the submarine is 1084.18 feet.

Step-by-step explanation:

Since we have given that

Distance between Ships A and B = 1425 feet

Angle of depression from ship A to the submarine =59°

Angle of depression from ship B to the submarine = 47°

As shown in the figure below:

Remaining angle will be

$180\textdegree-(47\textdegree+59\textdegree)\\\\=180\textdegree-106\textdegree\\\\=74\textdegree$

So, we will use "Sine formula ":

$\frac{\sin 74\textdegree}{1425}=\frac{\sin 59\textdegree}{B}\\\\B=\frac{1425\times \sin 59\textdegree}{\sin 74\textdegree}\\\\B=1270.68\ feet$

Similarly,

$\frac{\sin 74\textdegree}{1425}=\frac{\sin 47\textdegree}{A}\\\\A=\frac{1425\times \sin 47\textdegree}{\sin 74\textdegree}\\\\A=1084.18\ feet$

Hence, the distance from ship B to the submarine is 1270.68 feet and the distance from ship A to the submarine is 1084.18 feet.

4 0

3 years ago

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What is the value of x? Pls hurry!!!

eduard

Answer:

C. 120

Step-by-step explanation:

Hope it helps!

4 0

3 years ago

The length of a rectangle is 9 centimeters less than its width. What are the dimensions of the rectangle if its area is 112 squa

lbvjy [14]

Do 9x112 and u will get the answer

4 0

3 years ago

How can you get the variable alone in the equation x ÷ 9 = 279?

labwork [276]

D

Because to cancel out division you use multiplication

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3 years ago

The inequality x - y > 0 is satisfied by point (-1, 1). a. True b. False

Paraphin [41]

Substitute the values into the inequality:

-1 - 1 > 0

-2 > 0

False

7 0

3 years ago

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