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4 years ago

7x + 9 = 58 x/2 - 12 = -14 -3x + 33 = -12 8x + 16 = 8 2x - 2 = -18

Mathematics

1 answer:

masha68 [24]4 years ago

7 0

Answer: a) 7 b) -4 c) 15 d) -1 e) -8

Step-by-step explanation:

7x + 9 = 58

-9 -9

7x = 49

÷7 ÷7

x = 7

x/2 - 12 = -14

+12 +12

x/2 = -2

×2 ×2

x = -4

-3x + 33 = -12

-33 -33

-3x = -45

÷-3 ÷-3

x = 15

8x + 16 = 8

-16 -16

8x = -8

÷8 ÷8

x = -1

2x - 2 = -18

+2 +2

2x = -16

÷2 ÷2

x = -8

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4 years ago

If f(x)=2x+7 and g(x)=11x-4, find (f+g)x.

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4 years ago

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Answer:

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Step-by-step explanation:

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So, starting with the upper left corner of the rectangular pitch, and working our way clockwise, we encounter the following lengths:

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The total perimeter is then of 174.8 m

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The two half circles, form a circle, so A = πr², where r is the radius, which is half the diameter.

AC = π (10)² = 100 π = 314 sq m

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4 years ago

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3 years ago

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3 years ago