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Sedaia [141]
3 years ago
10

A scarf takes 20 feet of yarn to make. If 1 foot = 12 inches, how many inches does it take to make the scarf

Mathematics
1 answer:
mestny [16]3 years ago
5 0

Answer:

240

Step-by-step explanation:

20 times 24 is 240

20 x 24 = 240

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Explain how negative powers of 10 can be helpful when writing and comparing small numbers
Luba_88 [7]

Answer:

See explanation

Step-by-step explanation:

Powers of 10 is a very useful way of writing down large or small numbers.

Instead of having lots of zeros, you show how many powers of 10 will make that many zeros.

When you work with small numbers, you should use the negative powers of 10. Just remember for negative powers of 10, move the decimal point to the left. For example,

0.36=3.6\cdot 10^{-1}\ [\text{Move the decimal point one place to the left}]\\ \\0.036=3.6\times 10^{-2}\ [\text{Move the decimal point two places to the left}]\\ \\0.0036=3.6\times 10^{-3}\ [\text{Move the decimal point three places to the left}]\\ \\...

When comparing small numbers, write these numbers in scientific notation (only one non-xero digit must be before point) and then

  • if the powers of 10 are the same in compared numbers are the same, just compare the numbers which are multiplied by these powers of 10. For example, 3.6\times 10^{-6}>2.6\times 10{-6}, because powers are the same (-6) and 3.6>2.6
  • if the powers are different, then the smaller is power, the smaller is number (number with the smaller negative power has more places after decimal point). For example, 3.6\times 10^{-6}> 2.6\times 10^{-7}, because -6>-7
8 0
3 years ago
2x^2 + 3x - 12 when x = 5 help pls
cluponka [151]

\huge\textsf{Hey there!}

\mathsf{2x^2 + 3x - 12}

\mathsf{= 2(5)^2 + 3(5) - 12}

\mathsf{5^2}

\mathsf{= 5 \times 5}

\mathsf{\bf = 25}

\mathsf{2(25) + 3(5) - 12}

\mathsf{2(25)}

\mathsf{= \bf 50}

\mathsf{3(5)}

\mathsf{= \bf 15}

\mathsf{= 50 + 15 -  12}

\mathsf{50 + 15}

\mathsf{= \bf 65}

65 - 12

\mathsf{= \bf 53}

\boxed{\boxed{\huge\textsf{Answer: \bf 53}}}\huge\checkmark

\large\textsf{Good luck on your assignment and enjoy your day!}

~\frak{Amphitrite1040:)}

5 0
3 years ago
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andrezito [222]

Answer:

the screen is really blurry sorry bout that

Step-by-step explanation:

3 0
3 years ago
Is 10(x-2)=5(2x-4) infinitely many or no solution
Andrei [34K]
10x-20=10x-20, make your decision on the answer from this which they are all real numbers. Hope this will help you!
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What are the coordinates for point G?
aliina [53]

Answer:

G: (-2, 0.5)

Step-by-step explanation:

the "X" is -2 and then the "Y" is 0.5 because it is between 0 and 1, so we could the that Y-axis is being added by 0.5 each time.

5 0
3 years ago
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