Which expression is equivalent to 2.2 − 0.5(0.6x − 1.8) ?A) 0.3x + 1.3
B) 0.3x + 3.1
C) 1.3 − 0.3x
D) 3.1 − 0.3x

Answers

Answer 1

Answer:

Answer:

$2.2 - 0.5(0.6x - 1.8) \n 2.2 - 0.3x + 0.9 \n = 3.1 - 0.3x$

AnswerD

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the coordinates for the vertices of a polygon are (1,4) , (6.4) , (6,1). what type of polygon is formed by thease points?

Answers

Because there are only three points that are given, one could say that it is a triangle, but to be more specific, it is a right triangle.

Hope this helps!

There is 3 points, so it is a triangle.

Hope this helped, and please mark brainliest! :)

Explain why you must simplify 3 to the second power first

Answers

Because you have to go in the order of PEMDAS, parenthesis, exponents, multiplication, division, addition, and subtraction. From what you are saying, 'why you must simplify 3 to the second power first' it seems that you have no parenthesis, so you move onto what is next, which is exponents, in this case, 3 to the power of two.

FIND THE VALUE OF x³=-8
A ±4
B ±2
C-2
D-4

Answers

Answer:

x=-2

Step-by-step explanation:

In this kind of question,we will have to be extra careful to prevent errors or mistake.reason for the errors and mistake is that there is a negative sign in front of the 8...so any solution must ensure to involve the negative sign...or else the final answer will be discarded...

So back to the question

X^3=-8

Which means that the cube of x is 8 and we are to solve for x, therefore to solve this question...we will have to cube root both sides...why

So as to eliminate the cube on x...

Ok how,cube root of x^3 can also be written as x^3×1/3 which gives x

And cube root of -8 will be either 8^1/3 or3√-8

And the answer is-2

To confirm the answer we can say -2×-2×-2=-8

So the final answer is -2

Therefore x=-2

Answer:

$C.) \: \: \: - 2$

Step-by-step explanation:

$({ - 2})^(3) = - 8$

30% as a decimal to the nearest hundredth

Answers

Simple! To convert a percent to a decimal, all you have to do is divide by 100 (move decimal to the left 2 places). So...

30% ÷ 100 = .30

* Note - I left the answer as .30 as opposed to dropping the zero because it specifically asked for the answer rounded to the nearest hundredth.

to do this you take 30% then move a dot 2 spots to the left of the percent sign so it would be .30 and the 3 is a tenth and 0 is a hundredth its already at nearest hundredth so dont round

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