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Anna007 [38]
3 years ago
8

1. Joelle's homework covers multiplication with powers of 10. The first question on her homework is 32.4 x 10^2.

Mathematics
2 answers:
Shkiper50 [21]3 years ago
7 0

Answer:

1.

32.4 \times  {10}^{2}  = 32.4 \times 100 = 3240

2. when you multiply any number has decimal point by 10 power specific number [10^N]

if N is negative move with decimal point move to left On the contrary if N is positive you must move to right

Ex :

22.4 \times  {10}^{ - 1}  = 2.24 \\  \\

22.4 \times  {10}^{}  = 224

Lyrx [107]3 years ago
3 0

Answer:

1. 3240

2. 324×10^-1

Step-by-step explanation:

1. 32.4×10^<2

32.4×100

3240

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Answer:

<h2>17.5</h2>

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statuscvo [17]

Answer:

Length: 139 feet

Width: 104 feet

Step-by-step explanation:

The formula for the perimeter of a rectangle can be given by P = 2l + 2w. We are given the perimeter of the pool along with the width.

P = 486

w = l - 35

From here, all we have to do is plug back into the original formula:

486 = 2l + 2(l - 35)

Which can be further simplified as:

486 = 2l + 2l - 70

486 = 4l - 70

From here, all we have to do is add 70 to both sides of the equation and divide by four:

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To make sure that this answer is accurate, we can find that the width of the rectangle should then be 104 (given by 139 - 35). All we have to do is plug back into the original equation:

P = 2l + 2w

P = 2(139) + 2(104)

P = 278 + 208

P = 486

And the substitution works, so the length of the rectangle would be 139 feet and the width would be 104 feet.

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Answer:

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Step-by-step explanation:

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