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Allisa [31]
2 years ago
13

Simplify please.

Mathematics
2 answers:
DerKrebs [107]2 years ago
8 0

the answer is D, because the “ a “ thats alone has an invisible one in front of it, so it’ll be 1a+2a+3a+4a

ElenaW [278]2 years ago
6 0

Answer:

D

Step-by-step explanation:

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The work of a student to find the dimensions of a rectangle of area 8 + 12x and width 4 is shown below:
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Answer:

Step 2: 4(2) + 4(3x)

Step-by-step explanation:

By definition, the area of a rectangle is given by:

Area = Length × Width

In this case, we know that:

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Therefore:

Step 1: 8 + 12x

Step 2: 4(2) + (4)(3x)

Step 3: 4(2 + 3x)

Therefore, the dimensions of the rectangle are 4 and 2 + 3x.

The mistake was made in STEP 2. Instead of 4(2) + 4(x2) it should be  4(2) + 4(3x). Which is the second option.

5 0
3 years ago
Evaluate when a = 8 and b = 4. <br><br> ab^2<br> a−b
eduard
<span>Evaluate when a = 8 and b = 4. 

ab^2
a−b


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a - b = 8 - 4 = 4 
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3 0
2 years ago
These are the first six terms of a sequence with a1= - 3: - 3, 8, 19, 30, 41, 52, … Find a recursive formula for this sequence t
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Answer:

a(n+1)=a(n)+11

Step-by-step explanation:

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6 0
3 years ago
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Answer:

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Step-by-step explanation:

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What is 9 to the power of -3
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Answer: 1/729

.........................

3 0
3 years ago
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