MATHEMATICS HIGH SCHOOL

Solve −2x − 13 = 8x + 7. (1 point)


−2
2
−6
6

Answers

Answer 1
Answer: To solve for the value of x, it is easiest by isolating "x" to one side of the equation. This method is shown below:

-2x - 13 = 8x + 7

Adding 2x to both sides:

-2x - 13 + 2x = 8x + 7 + 2x
-13 = 10x +7

Subtracting 7 from both sides:

-13 - 7 = 10x + 7 - 7
10x = -20

Dividing both sides by 10:

10x / 10 = -20 / 10
x = -2
Answer 2
Answer: solve:
-2x-13=8x+7
-2x-8x=7+13
-10x=20
-x=20/10
-x=2
x= -2
THE ANSWER IS -2

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...................

To convert a measurement, Pete must move the decimal point to the left 4 places. This a shortcut for the operation. which operation is he using? Which power of 10 is involved?

Answers

The operation that Pete is using is the operation of multiplying numbers by decimal numbers and the power of 10 involved is 4

If Pete must move a decimal point to the left in 4 places, then the operation she is using is the operation of multiplying numbers by decimal numbers.

  • Since the movement is to the left in 4 places, the power of 10 involves will be a 4

For example,

  • if we are to convert 0.56 say to scientific notation to the power of 4. We will need to move the decimal point to the left 4 times to have 0.000056 * 10^4

Hence the operation that Pete is using is the operation of multiplying numbers by decimal numbers and the power of 10 involved is 4

Learn more here: brainly.com/question/16236436
The moving of decimal to the left is a shortcut to the operation of multiplying number by decimal numbers. So the power of 10 that is involved in converting the measurements of pete is -4, so he needs to multiply the measurement by 10^-4 to convert it.

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Answers

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Answers

91/100 - 91 is a prime number and being two decimal places after the "dot" you can use 100 as your denominator (:
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Answers

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4√6 as your answer.
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