3 years ago

Solve for elimination x-4y= -9 and -x+3y=7

1 answer:

6 0

Answer: x=-1 and y=-2

Explanation:
Hope this helps :)

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zavuch27 [327]

I think it’s 16 remainder 1

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2 years ago

steposvetlana [31]

Let n represent the number. You require
7n - 2n = 55
5n = 55 . . . . . . collect terms
n = 11 . . . . . . . divide by 5

The number is 11.

8 0

3 years ago

Nonamiya [84]

The horizontal distance until the plan flies over the island is 2687.05 feet approximately.

<u>Solution:</u>

Given that, A plane at an altitude of 7000 ft is flying in the direction of an island

An angle of depression is 21 degree from the plane to the island

We have to find what is the horizontal distance until the plan flies over the island

The diagram is attached below

Assume as shown in the diagram , now we can use the right angle triangle property

$\tan (21)=\frac{\text {distance between plane and point above island}}{\text {height of plane}}$

$\tan (21)=\frac{\text {distance between plane and point above island}}{7000}$

$\text { Distance between plane and point above island }=7000 \times \tan (21)$

$=7000 \times 0.38386=2687.0482$

Hence, the distance between plane and point above island is 2687.05 feet approximately.

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2 years ago

avanturin [10]

T = d/s

t = 200/35.27

Hope that helps!!!

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2 years ago

jenyasd209 [6]

A) 3:4
b) 2:7
c) 3.5
d) 2:3

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2 years ago