MATHEMATICS MIDDLE SCHOOL

(7x2 + 4x + 10) - (3x2 + 2x - 6)

Answers

Answer 1

Answer:

Answer:

4x^2 +2x +16

Step-by-step explanation:

7x2 + 4x + 10) - (3x2 + 2x - 6)

Distribute the minus sign

7x2 + 4x + 10) - 3x2 - 2x + 6

Combine like terms

7x2 + 4x + 10)

- 3x2 - 2x + 6

-------------------------

4x^2 +2x +16

Answer 2

Answer:

Answer:

(7×2 + 4x + 10) - ( 3×2 + 2x - 6)

(14 + 4x + 10) - ( 6 + 2x - 6)

(4x + 14 +10) - ( 2x + 6 - 6)

(4x + 24) - ( 2x )

4x + 24 - 2x

4x - 2x + 24

2x + 24

Step-by-step explanation:

clear bracket

All multiplication , subtraction and addition

should be first done in the bracket

After clearing bracket,

then subtract the left answer from the right answer

To get your final answer

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Translate the following into an algebraic expression: eighteen minus the sum of a number and seventeen.

A cube has an edge length 12cm. If the edge length of the cube is doubled, what happens to the surface area?

Answers

The answer is 864cmsquared

Use an addition property to solve for c 14 +(-12)=-12+canswers
A -26
B-14
C 14
D26

Answers

For me the answer is the C because is plus not is false is true

Five more than twice a number is -13. Find the number.

Answers

x - the number

$2x+5=-13 \ \ \ |-5 \n2x=-18 \ \ \ |/ 2 \nx=-9$

The number is -9.

Five more than twice a number is -13. Find the number. Solve 2x+5= -13
Subtract 5 fron both sides
2x= -18
Divide 2
x= -9

30% of what number is 27?

Answers

A percentage is a number that represents a ratio expressed as a fraction of 100. It means parts per 100. 1% would then mean 25 parts per 100. We solve the given statement above as follows:
30% (x) = 27
x = 27/.30 = 90
Hope this answers the question.

Solve the proportion. s+1/4=4/8

Answers

The value of s for the given expression will be 1 / 4.

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division

The given expression will be solved as:-

s + ( 1 / 4 ) = 4 / 8

( 4s + 1 ) / 4 = 4 / 8

4s + 1 = 2

4s = 1

s = 1 / 4

Therefore the value of s for the given expression will be 1 / 4.

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brainly.com/question/723406

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5*s-(4*s)-(1/2) = -1/4-(4/8) // + -1/4-(4/8)

5*s-(4*s)-(1/2)-(-1/4)+4/8 = 0

5*s-4*s-1/2+1/4+4/8 = 0

s+1/4 = 0 // - 1/4

s = -1/4

s = -1/4

a window is shaped like a parallelogram the base of the window is 27 inches its area is 445.5 square inches. what is the height of the window?