(6x+9)−(7x+1) find the difference

Mathematics

2 answers:

Bad White [126]3 years ago

5 0

Answer: -x+8
explanation: it’s in its simplest form because it cannot be factored

earnstyle [38]3 years ago

4 0

ANSWER: -x + 8

Explanation:

(6x+9)-(7x+1)
remove parentheses and change the sign of each term of expression whenever there is a - in front of an expression in parentheses

6x+9-7x-1
collect like terms
-x+9-1
subtract the numbers
-x+8

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WILL MARK BRAINLIEST<br> One number is 0.9 of another number. Their sum is 0.038. Find each number.

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Answer:

A) x = .9y

B) x + .9y = .038

Substituting A) into B)

.9y + .9y = .038

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y = 0.0211111111

From equation A)

x = .038 -.9*.02111111111111111111111

x = .038 -.019

x = .019

CHECK

x * .9 = .019

.019 + .9 * .021111111111111 = .019 + .019 = .038

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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WILL GIVE BRAINLIEST!!!!!!!

Liula [17]

Hints on solving trigonometry problems:

If no diagram is given, draw one yourself.

Mark the right angles in the diagram.

Show the sizes of the other angles and the lengths of any lines that are known

Mark the angles or sides you have to calculate.

Consider whether you need to create right triangles by drawing extra lines. For example, divide an isosceles triangle into two congruent right triangles.

Decide whether you will need Pythagorean theorem, sine, cosine or tangent.

Check that your answer is reasonable. The hypotenuse is the longest side in a right triangle.

How to use the tangent ratio to find missing sides or angles?

Example: