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lisov135 [29]
3 years ago
13

A submarine spots a speedboat on the

Mathematics
1 answer:
Mumz [18]3 years ago
7 0

Answer:

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°, and the angle of depression from ship B to the submarine is 47°.

How far away is the submarine from the two ships? Round to the nearest hundredth of a foot.

The distance from ship A to the submarine is about

feet.

The distance from ship B to the submarine is about

feet.

Step-by-step explanation: answer this and ill answer yours.

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Oksanka [162]

Answer:

3x⁴ + x³ + 3 x² - 18 x + 4  

Step-by-step explanation:

5 0
3 years ago
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In a jar there are red jelly beans and green jelly beans. In how many ways can you pick red jelly beans and the same number of g
IrinaK [193]

<em>Complete Question:</em>

In a jar there are 19 red jelly beans and 10 green jelly beans. In how many ways can you pick 4 red jelly beans and the same number of green jelly​ beans?

Answer:

Both = 813960

Step-by-step explanation:

Given

Red Jelly Beans = 19

Green = 10

Required

Select 4 out of 19 red jelly beans and 4 out of 10 green jelly beans

The keyword in the question is pick and this implies combination;

4 from 19 red jelly beans is calculated as follows

^nC_r = \frac{n!}{(n-r)!r!}

Where n = 19 and r = 4

^{19}C_4 = \frac{19!}{(19-4)!4!}

^{19}C_4 = \frac{19!}{15!4!}

^{19}C_4 = \frac{19 * 18 * 17 * 16 * 15!}{15! * 4 * 3 * 2 * 1}

^{19}C_4 = \frac{19 * 18 * 17 * 16}{4 * 3 * 2 * 1}

^{19}C_4 = \frac{93024}{24}

^{19}C_4 = 3876

Similarly;

4 from 10 green jelly beans is calculated as follows

^{10}C_4 = \frac{10!}{(10-4)!4!}

^{10}C_4 = \frac{10!}{6!4!}

^{10}C_4 = \frac{10 * 9 * 8 * 7 * 6!}{6! * 4 * 3 * 2 * 1}

^{10}C_4 = \frac{10 * 9 * 8 * 7 }{4 * 3 * 2 * 1}

^{10}C_4 = \frac{5040}{24}

^{10}C_4 = 210

Ways of selecting both is calculated as follows

Both = 3876 * 210

Both = 813960

5 0
4 years ago
HELP ASAP PLEASE!!!!
allochka39001 [22]
The answer is D. 

Take the 2 and plug it in as x so you would have f(2)=1/3 x 4^2

Simplify that and you get 1/3 x 16

That equals 5 1/3

16/3 is the improper fraction form of 5 1/3
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3 years ago
Solve the system by substitution or elimination. {−x+y=22x+y=−1
laila [671]
X=-11.5 and y=10.5.Thae two values are the answers.

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3 years ago
Find the distance from the point (-4, 4) to the line y=-2x+1 . Round your answer to the nearest tenth.
kati45 [8]

Answer:

5 units.

Step-by-step explanation:

In order to find the distance between the line y = -2x + 1 and the point (-4, 4), we need to find the position of the line at x = -4. Shortest distance between two objects is a straight line, right?

So y = -2(-4) + 1 = 9; (-4, 9).

Finding the distance between (-4, 4) and (-4, 9) gives us the answer of 5.

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4 years ago
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