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zysi [14]
3 years ago
15

(2/7)power 7 divided (2/7)power 5

Mathematics
2 answers:
lesantik [10]3 years ago
8 0

Answer:

4/49

Step-by-step explanation:

\frac{ (\frac{2}{7})^{7}  }{( \frac{2}{7} )^{5} }  = ({ \frac{2}{7} )}^{7 - 5}  \\  = ( \frac{2}{7})^{2}  \\  =  \frac{4}{49}

Harrizon [31]3 years ago
6 0

Answer:

4/49

Step-by-step explanation:

7-5 = 2

2/7*2/7 = 4/49

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Answer D. 170
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5 0
3 years ago
If R is the midpoint of QS, QR = 8x – 51 and RS = 3x – 6, find QS.
dusya [7]

Answer:

42 units

Step-by-step explanation:

If R is the midpoint of QS, then by definition, QR = RS. Since QR = 8x - 51 and RS = 3x - 6, set these equal to solve for x:

QR = RS

8x - 51 = 3x - 6

5x = 45

x = 9

Now that we know x = 9, we can plug this back into one of the expressions for QR or RS to find its length:

QR = 8x - 51 = 8 * 9 - 51 = 72 - 51 = 21

Since half of QS is 21, then the whole of QS is twice that:

2 * 21 = 42

The answer is thus 42 units.

<em>~ an aesthetics lover</em>

6 0
3 years ago
A car manufacturer claims that the company's newest model has a peak power of exactly 329 horsepower. Katherine is a reporter fo
tankabanditka [31]

Answer:

A. Reject the null hypothesis because p-value < 0.005 is less than the significance level a = 0.05

Step-by-step explanation:

In hypothesis test, test statistic calculated and it's p-value is compared against the significance level. If it is less than the significance level, the result is significant at the given significance level. In this case one can reject the null hypothesis in favor of the alternate hypothesis.

In this example Katherine find test statistic -3.39, and p-value < 0.005. Thus she can conclude there is significant evidence that the population mean peak power is less than the advertised amount

6 0
4 years ago
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xz_007 [3.2K]

Answer:

(x−1)(x+6)

Step-by-step explanation:

3 0
4 years ago
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X/?Y=1/2Z
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1/2 hole needs 1 man with 3 days
3 0
3 years ago
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