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masya89 [10]
3 years ago
6

Can you help me answer these questions

Mathematics
1 answer:
igomit [66]3 years ago
8 0

Answer:

answers are shown below

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If a is an odd number, then 2a is an even number,
tia_tia [17]

Answer:

That would be correct!

Step-by-step explanation:

Hope this help :3

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The mass of one methane molecule is 2.7x10^-23gram. Find the mass of 90,000 molecules of methane. Express the answer in scientif
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2.43 • 10^-18

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3.(06.01)<br> What is the value of the expression 5^2 +2^2? (2 points)
stepladder [879]

Answer:

29

Step-by-step explanation:

5^2=25

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3 years ago
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One side of a rectangle is 9 inches and the other side is x inches. What values of x will make the perimeter at most 46? a x &lt
Natasha_Volkova [10]

Answer:

The correct answer is:

x ≤ 14 (b)

Step-by-step explanation:

first of all, let us find the other side of the rectangle using the limit of 46 as the highest perimeter:

Perimeter of a rectangle = 2(Length) + 2(width)

Let the length = x inches

let the width = 9 inches

Perimeter = 2x + 2(9)

46 = 2x + 18

2x = 46 - 18

2x = 28

x = 28 ÷ 2

x = 14

Therefore, for the perimeter to be equal to 46 inches, the other side of the rectangle must be equal to 14 inches. Hence, for the perimeter to be at most 46 inches ( 46 inches or less):

x is less than or equal to 14 (x ≤ 14)

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3 years ago
Barbara buys
docker41 [41]

Answer

yes it is correct

Step-by-step explanation:

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