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3 years ago

Is this question correct?

Mathematics

1 answer:

Andrews [41]3 years ago

6 0

Answer:

10^20

3^11

3^24

10^12

Step-by-step explanation:

(10^2)^10=10^2*10=10^20

3^3*3^8=3^3+8=3^11

(3^3)^8=3^3*8=3^24

10^2*10^10=10^2+10=10^12

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The denominator of a fraction is three more than its numerator. When both the numerator and denominator are increased by one the

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Answer:

The original fraction is $\frac{2}{5}$

Step-by-step explanation:

Let the numerator by X

Denominator is three more than its numerator i.e X +3

When both the numerator and denominator are increased by one the fraction becomes 1/2

$\frac{X + 1}{X+3+1} = \frac{1}{2} \\\frac{X+1}{X+4} = \frac{1}{2} \\2X + 2 = X+4\\X = 2$

Thus, numerator = 2

Denominator = X +3 = 2+3 = 5

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2 years ago

Of 140 seventh grade students, 15% earn the presidential physical Fitness award. How many students earn the award

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To find this answer you need to multiply the percent by the total, in this case 15% times 140. Remember to change the percent into a decimal (0.15).

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21 people earned the award

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3 years ago

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A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba

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Answer:

The test statistic is z = 1.865.

Step-by-step explanation:

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

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$\mu = 0.11$

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This means that:

$n = 94, X = \frac{16}{94} = 0.1702$

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2 years ago

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Answer: 8.4 inches.

Step-by-step explanation:

We know that the circumference of a circle can be calculated with this formula:

$C=2\pi r$

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