3 years ago

16. Write an expression to represent the perimeter of the figure below. X + 2 2x - 3

Mathematics

1 answer:

ahrayia [7]3 years ago

4 0

Answer:

[2(x+2)] + [2(2x-3)]

Step-by-step explanation:

perimeter is all sides added together. This expression multiplies both sides by 2 in order to represent the other 2 sides not notated in the picture.

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Simplify the expression<br> (3x4 + 9x3 – 7x + 15) + (-6X4 – 8x2 + 5x – 3)

elena-s [515]

Answer:

If the numbers next to the "x" are "carroted" ( ^ ) then the answer is

-3x^4 + 9x^3 -8x^2 -2x +12

Step-by-step explanation:

Basically, you just add the like terms together.

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2 years ago

Solve -4(6×+3)=-12(x+10)

OleMash [197]

Answer:

x = 9

Step-by-step explanation:

-4(6x+3)=-12(x+10)

-24x-12=-12x-120

+12 +12

-12x=-12x-108

/-12 /-12 / -12

x=9

Answer x=9

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2 years ago

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Bogdan [553]

Better labeling so I can understand.

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3 years ago

Find the measure of the indicated angle below

Norma-Jean [14]

Answer:

The measure of x is $70\°$

Step-by-step explanation:

we know that

The formula to calculate the sum of the internal angles of a polygon is equal to

$S=(n-2)*180\°$

where

n is the number of sides

In this problem we have

$n=9\ sides$

substitute

$S=(9-2)*180\°=1,260\°$

Find the measure of each internal angle

Divide the sum of the internal angles by the number of sides

$1,260\°/9=140\°$

The value of x is half the measure of internal angle

$x=140\°/2=70\°$

8 0

3 years ago

|At Davidson's Bike Rentals, it costs $19 to rent a bike for 5 hours.

Veseljchak [2.6K]

Answer:

3.8$

Step-by-step explanation:

You have to figure out $/hours.

19/5= 3.8 $/hours

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2 years ago