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AfilCa [17]
2 years ago
11

May you please answer these four questions for me? This is all i ask of you

Mathematics
1 answer:
DiKsa [7]2 years ago
4 0

Answer:

1. 151.29 in.²

2. 413 km²

3. 75 cm²

Step-by-step explanation:

1. 12.3 in. × 12.3 in. = 151.29 in.²

2. 17.5 km × 23.6 km = 413 km²

<u>The third is a parallelogram. To find the area of a parallelogram you multiply the base and height.</u>

3. 15 cm × 5 cm = 75 cm²

For further calculation steps, look at these images:

These images are about multiplication and the decimal numbers in the problems have been converted to fractions.

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A store marks up the price of a sweater by $7.35. The total cost of the sweater is 25.65. How much does the store pay for the sw
UNO [17]

Answer: the store paid $18.3 for the sweater

Step-by-step explanation:

Let x represent the amount that the store paid for the sweater.

A store marks up the price of a sweater by $7.35. This means that the new or current price of the sweater at the store would be

7.35 + x

The total cost of the sweater is 25.65. Therefore, an equation to represent the problem would be

7.35 + x = 25.65

Subtracting 7.35 from the left hand side and the right hand side of the equation, it becomes

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x = $18.3

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3 years ago
What is 8 thousands 15 hundreds 15 Tens 18 ones written in standard form ?
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What are the solutions to m^2 – 9 = 0? a. m = –9 and m = 0 b. m = –3 and m = 3 c. m = –3 d. m = 9
marysya [2.9K]
2 ways
zero product property
easy way

zero product
factor perfect square
m^2-3^2=0
(m-3)(m+3)=0
set each to zero
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m+3=0
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m=-3 or 3

easy way
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m^2=9
sqrt both sides remember to take postive and negative roots
m=+/-3
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B is answer

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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