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Inessa05 [86]
3 years ago
11

What's -8.2 x 10 to the fifth power? Please explain your answer. Thank you!

Mathematics
1 answer:
Stolb23 [73]3 years ago
8 0

First lets find -8.2 x 10 = -82 know we find 82^5 which is 82*82*82*82*82

-82*-82=6724 and then 6724*-82= -551368 and then -551368*-82 =45212176 and then 45212176*-82= -3707398432 and finally -3707398432 is our answer i checked the calc to after i did the hard math that took me forever i had some help from the calc and i got this hopefully this helps

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Which of the following equations describes this graph?
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Answer:

The choose (A)

y=(x-1)²-2

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Simplify the following expression.<br><br> 32a^3 b^2/8ab2
nadya68 [22]
Your answer would be 22a4b4 the 2 is sqr and 4s are sqrt
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Please help solve this
Ne4ueva [31]

Answer:

last option

Step-by-step explanation:

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6 0
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A researcher is wondering whether the smoking habits of young adults (18-25 years of age) in a certain city in the U.S. are diff
kvasek [131]

Answer:

The proportion of young adults (18-25 years of age) in a certain city in the U.S. are not different from the proportion of the general population of young adults in the U.S.

Step-by-step explanation:

The hypothesis for the test can be defined as:

<em>H</em>₀: The proportion of young adults (18-25 years of age) in a certain city in the U.S. are not different from the actual proportion, i.e. <em>P</em> = <em>p</em><em>.</em>

<em>Hₐ</em>: The proportion of young adults (18-25 years of age) in a certain city in the U.S. are different from the actual proportion, i.e. <em>P</em> ≠ <em>p</em><em>.</em>

The test statistic is defined as:

z=\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n}}}

Assume that the significance level of the test is, <em>α</em> = 0.05.

The decision rule is:

If the <em>p</em>-value of the test is less than the significance level then the null hypothesis will be rejected. And vice-versa.

It is provided that the <em>p</em>-value of the test is, <em>p</em>-<em>value</em> = 0.076.

The <em>p-</em>value = 0.076 > <em>α</em> = 0.05.

Thus, the null hypothesis will not be rejected at 5% level of significance.

<u>Conclusion</u>:

The proportion of young adults (18-25 years of age) in a certain city in the U.S. are not different from the proportion of the general population of young adults in the U.S.

4 0
4 years ago
Find the length of the height of the right trapezoid shown below, if it has the greatest possible area and its perimeter is equa
Artyom0805 [142]

Answer:

The height of the right trapezoid is   \frac{6}{5+\sqrt{3}}\ units

Step-by-step explanation:

Let

x ----> the height of the right trapezoid in units

we know that

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P=AB+BC+CD+DH+HA

we have

P=6\ units

AB=BC=CH=HA=x ---> because is a square

substitute

6=x+x+CD+DH+x

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<em>In the right triangle CDH</em>

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Remember  that CH=x

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tan(30\°)=\frac{\sqrt{3}}{3}

so

\frac{\sqrt{3}}{3}=\frac{x}{DH}

DH=x\sqrt{3}

substitute the values in the equation A

6=3x+CD+DH -----> equation A

CD=2x

DH=x\sqrt{3}

6=3x+2x+x\sqrt{3}

6=5x+x\sqrt{3}

6=x[5+\sqrt{3}]

x=\frac{6}{5+\sqrt{3}}\ units

5 0
3 years ago
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