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aliya0001 [1]
3 years ago
6

Divide x to the 1 half power divided by x to the 2 sevenths power.

Mathematics
1 answer:
Semenov [28]3 years ago
4 0
Remember some basic rules
\frac{x^m}{x^n}=x^{m-n}
and
x^ \frac{m}{n}= \sqrt[n]{x^m}


so
\frac{x^\frac{1}{2}}{x^\frac{2}{7}}=x^{\frac{1}{2}-\frac{2}{7}}
1/2-2/7=
7/14-4/14=
3/14

x^{\frac{1}{2}-\frac{2}{7}}=x^{\frac{3}{14}}

x^ \frac{3}{14}= \sqrt[14]{x^3}
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Kelly has a cherry tree in her yard. Currently the tree is 9 feet tall. That is 80% taller than it
lukranit [14]

Answer:

80 percent of 9 is 4/5th of 9, which is 36/5 or 7.2

Hope this helped and brainliest please

6 0
3 years ago
1 half gallon of ice cream cost 4.36 what is the unit price per quart
faltersainse [42]

Answer:

$2.18

Step-by-step explanation:

since there are 4 quarts in a gallon then there are 2 in a half gallon and therefore if you divide by 2 that would be your price per quart.

5 0
3 years ago
A random sample of 35 business students required an average of 50.7 minutes to complete a statistics exam. Assume that the popul
love history [14]

Answer:

(47.3, 54.1)

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1 - \alpha.

That is z with a pvalue of 1 - 0.025 = 0.975, so Z = 1.96.

Now, find the margin of error M as such

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96\frac{10.4}{\sqrt{35}} = 3.4

The lower end of the interval is the sample mean subtracted by M. So it is 50.7 - 3.4 = 47.3

The upper end of the interval is the sample mean added to M. So it is 50.7 + 3.4 = 54.1

The answer is (47.3, 54.1).

6 0
3 years ago
BIG 100 POINTS, need this for a test asap... PLEASE HELP
pentagon [3]

Answer:

7. im only in middle school but i think you have to take 496 and list its factors, then once you find the right pair, check to see if the difference is 238.

IM TRYING PLEASE DONT YELL AT ME HDBHNSJDGD

6 0
3 years ago
Add (3x4−2x3+4x−2) and (3x3−2x2−x+4). Question 2 options:
Natalka [10]

Answer: 3x^4 +x^3 -2x^2 +3x +2

Step-by-step explanation:

(3x^4 - 2x^3 + 4x -2) + (3x^3 - 2x^2 - x +4)

There are no like terms for 3x^4, so leave it alone.

-2x^3 + 3x^3 = 1x^3

No like terms for -2x^2

4x - x = 3x

-2 + 4 = 2

Answer? 3x^4 +x^3 -2x^2 +3x +2

(Please mark brainliest! :) )

5 0
3 years ago
Read 2 more answers
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