3 years ago

5(a−1)−15=3(a+2)+4 a= ?

Mathematics

1 answer:

Alla [95]3 years ago

6 0

Answer:

a = 15

Step-by-step explanation:

screenshots below should explain the answer :)

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What is the range of the function f(x) = 4x + 9, given the domain D = {-4, -2, 0, 2}?

anyanavicka [17]

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$f( - 4) = 4( - 4) + 9 = - 7$

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$f( - 2) = 4( - 2) + 9 = 1$

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$f(0) = 4(0) + 9 = 9$

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$f(2) = 4(2) + 9 = 17$

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Thus ;

R = { - 7 , 1 , 9 , 17 }

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The correct answer is (( D )) .

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3 years ago

Question#1 please. Thankyou

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The area of a rectangle is L x W, so 9(5+x) is the formula for the area in factored form. It can be simplified to 45+9x

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Please give an explanation or show your work!

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(2, 12)

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Read 2 more answers

the difference between two numbers is 10 and their sum is four times the smaller number. find the two numbers

Vanyuwa [196]

Answer:

The smaller number is 5.

The bigger number is 15.

Step-by-step explanation:

Let the smaller number be x and the bigger number be x+10.

x+x+10 = 4x

2x+10 = 4x

10 = 4x-2x

2x = 10

x = 10÷2

= 5

x+10 = 5+10

= 15

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3 years ago