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4 years ago

12

Solving Equations 3k+10=2k-21

1 answer:

Nikolay [14]4 years ago

6 0

3k+10=2k-21

move 2k to the other side

sign changes from +2k to -2k

3k-2k+10=2k-2k-21( combine like terms)

3k-2k+10= -21

k+10=-21

move +10 to the other side

k+10-10= -21-10

k= -21-10

answer:

k= -31

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pls help - will give brainliest farmer is painting a new barn. He will need to calculate the surface area of the barn to purchas

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Answer:

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Question number 9
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Question number 10
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3 years ago

The terminal side of Ø is in quadrant II and cos ø = -5/13 What is sin ø?

Sliva [168]

the value of sin ∅ is 12/ 13

<h3>Quadrants and the "cast" Rule:</h3>

In the first quadrant, the values for sin, cos, and tan are positive.

In the second quadrant, the values for sin are positive only.

In the third quadrant, the values for tan are positive only.

In the fourth quadrant, the values for cos are positive only.

From the given question,

We have, cos ∅= 5/13

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Then , let's substitute the value of cos ∅

$sin^2\alpha +(\frac{-5}{13} )^2 = 1$

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brainly.com/question/863849

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3 years ago

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1.Solve using square roots.

ElenaW [278]

Answer:

see explanation

Step-by-step explanation:

1

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