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Nat2105 [25]
3 years ago
8

What is twice of 2^30 using exponents

Mathematics
1 answer:
coldgirl [10]3 years ago
7 0

Answer:

2^31.

Step-by-step explanation:

2 * 2^30

= 2^1 * 2^30

= 2^31. (Law of indices)

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Exactly 1 1/3 yard of ribbon is needed to make a bow. Which of the following lengths of ribbon could be used to make a bow with
svp [43]

Answer:

1 and 2/5 yards wastes only 1/15 a yard

Step-by-step explanation:

1 and 1/6 yards  would make a waste of 1 and 1/6 yards since you can't make a ribbon out of it. (incorrect)

1 and 2/10 yards  would make a waste of 1 and 1/5 yards since you can't make a ribbon out of it. (incorrect)

1 and 2/5 yards

1\frac{2}{5} -1\frac{1}{3} =\\\\1\frac{6}{15} -1\frac{5}{15} =\\\\\frac{1}{15}

Wastes 1/15 a yard.

1 and 1/2 yards  

1\frac{1}{2} -1\frac{1}{3} =\\\\1\frac{3}{6} -1\frac{2}{6} =\\\\\frac{1}{6}

It wastes 1/6 a yard.

2 yards

2-1\frac{1}{3} =\frac{2}{3}

It wastes 4/6 a yard.

4 0
3 years ago
1). ppllllsssss awwnnsseeer thisss
Sophie [7]

Answer:

C

Step-by-step explanation:

pls give me brainliest plssss

6 0
3 years ago
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Evaluate this expression <br><br> <img src="https://tex.z-dn.net/?f=8%5E%7B-2%7D" id="TexFormula1" title="8^{-2}" alt="8^{-2}" a
shepuryov [24]

Answer:

0.015625

Step-by-step explanation:

Rule: a^{-n} = \dfrac{1}{a^n}

8^{-2} = \dfrac{1}{8^2} = \dfrac{1}{64} = 0.015625

6 0
2 years ago
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Round each number to the nearest tenth.
andreev551 [17]

Answer:For the first one 26.73 would turn into 27 and 89.42 would stay 89


Step-by-step explanation: Any number that is 5 or greater can be used to round any number.


7 0
3 years ago
Which expression is equivalent to Assume x &gt; 0 and y 0.
Svetach [21]

we have

\sqrt{\frac{55x^{7}y^{6}}{11x^{11}y^{8}}}

we know that

\sqrt{\frac{55x^{7}y^{6}}{11x^{11}y^{8}}} =\sqrt{\frac{55}{11}\frac{x^{7}}{x^{11}}\frac{y^{6}}{y^{8}}} \\ \\= \sqrt{\frac{5}{x^{4} y^{2}}} \\ \\ =\frac{\sqrt{5}}{x^{2} y}

therefore

<u>the answer is</u>

The expression equivalent is  \frac{\sqrt{5}}{x^{2} y}

3 0
3 years ago
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