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2 years ago

Which of the following describes a correct method for solving the equation below?

1 answer:

8 0

1: multiple both sides by 2
Ex:-7n+10=-32
2: subtract 10 from both sides
Ex: -7n=-42
3:divide both sides by -7 to get n alone
Ex: n=6
Answer is 6 and the process is elimination!

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Please help seems easy just can’t figure out the answer

madreJ [45]

Answer:

b is 125

Step-by-step explanation:

8 0

3 years ago

an oil company fills 1/12 of a tank in 1/4 hour with gasoline at this rate which expression can be used to determine how long it

lesya692 [45]

Answer:

1/4 * 12

Step-by-step explanation:

It takes 1/4 hour to fill 1/12

It has to do this 12 times to be full

so 1/4 hour times 12

4 0

3 years ago

The sides of a triangle have measures of 2x, 8, 12. If the measure of the longest side is 2x. What value of x makes the triangle

Strike441 [17]

Answer:

8+12= 2x

multiply all of them by power of 2

Step-by-step explanation:

so,

64+144 = 4x

208=4x

x = 52 what is the root of 52 the answer is

x = 7.188 or 3/16

4 0

2 years ago

I might give the crown

emmainna [20.7K]

Answer:

Area=88in squared

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

If sin Θ = 2 over 3 and tan Θ < 0 , what is the value of cos Θ?

Zielflug [23.3K]

$\sin \theta = \dfrac 2 3$

$\tan \theta < 0$

Positive sine, negative tangent, means we have a negative cosine. We're talking about the second quadrant.

$\cos^2 \theta + \sin ^2 \theta = 1$

$\cos^2 \theta = 1 - \sin ^2\theta$

$\cos \theta = \pm \sqrt{1 - \sin ^2\theta}$

We know it's negative,

$\cos \theta = - \sqrt{1 - (2/3)^2} =-\sqrt{5/9} = - \dfrac 1 3 \sqrt{5}$

Answer: -(1/3)√5

4 0

3 years ago