3 years ago

To use distributive property solve equation 2(a+3)=-12

Mathematics

1 answer:

WARRIOR [948]3 years ago

4 0

Answer: a= -18/2

Step-by-step explanation:

2a + 2x3 = -12

2a + 6 = -12

2a + 6 - 6 = -12 - 6 ( subtract 6 from both sides)

2a = -18 (Divide 2 by both sides)

a= -18/2

You might be interested in

Which is equal to the cos ÐR? PLEASE HELP ME

inna [77]

Answer: 4/5 = .8

cos adj/hyp of r is .8

HOWEVER...

I’m assuming it’s talking about angle R...

4 0

3 years ago

What value of x satisfies

LenaWriter [7]

Answer:

See explanation

Step-by-step explanation:

The given trigonometric equation is $cos(90-x)=-\frac{\sqrt{3} }{3}$ .

We take the inverse cosine of both sides to get:

$90-x=cos^{-1}(-\frac{\sqrt{3} }{3})$

$90-x=125$

$x=125-90$

$x=-35\degree=325\degree$ to the nearest degree

None of the options satisfies the given equation.

But if the question is actually;

$cos(90-x)=-\frac{\sqrt{3} }{2}$

Then;

$90-x=\cos^{-1}(-\frac{\sqrt{3} }{2})$ .

$90-x=210$ .

$x=-120\degree$ .

$x=360-120=240\degree$ .

In this case the answer will be B

5 0

3 years ago

Read 2 more answers

Tank A has a capacity of 9.5 gallons. 6 1\3 gallons of the tank"s water are poured out. How many gallons of water are left in th

dezoksy [38]

Since 1/3 can't be turned into a decimal, change .5 into 1/2. In order to subtract, the fractions need a common denominator. The least common denominator is 6. So 1/3 turns into 2/6, and 1/2 turns into 3/6. Now you need to take 9 3/6 minus 6 2/6. The answer is 3 1/6 gallons of water.

3 0

3 years ago

What is the value of this expression when a=20

Aloiza [94]

Answer:

Step-by-step explanation:

A=20

4 0

3 years ago

Find the solution of given expression <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B99%20%5Ctimes%2033%20%5Ctime

vladimir1956 [14]

Answer:

Step-by-step explanation:

99 x 33 x 3 can be simplified to 99 x 99. If you square root this you will end up with 99

5 0

3 years ago

Read 2 more answers

To use distributive property solve equation 2(a+3￼)=-12

To use distributive property solve equation 2(a+3)=-12