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Bingel [31]
3 years ago
6

What expression is equivalent to 9^-2

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
7 0

1÷81 because you square it

shusha [124]3 years ago
3 0

9^ -2 = 1/9^2 = 1/81

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Just started ratio, I need some help, please!
spayn [35]

Answer:

The answer would be B.

Step-by-step explanation: It is this answer because if it asks you 1 to 5, that means it is one, and then to 5.


Hope this answer helps!


6 0
3 years ago
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The regression equation y = -0.414x + 106.55 approximates the percent of people in an
murzikaleks [220]

The correct option will be:   A. 67%

<em><u>Explanation</u></em>

Given equation is:   y = -0.414x + 106.55 , where x is the length of the film in minutes and y is the percentage of people finish watching the film.

Here, the length of the documentary is given as 95 minutes. So, we will <u>plug x=95 into the above equation</u> and get....

y=-0.414(95)+106.55\\ \\ y=-39.33+106.55\\ \\ y=67.22 \approx 67

<em>(Rounded to the nearest percent)</em>

So, the percentage of people in an audience who will finish watching a documentary that is 95 minutes long will be 67%

4 0
3 years ago
What is the sum of the first 40 odd integers greater than zero?
marusya05 [52]
The answer you are looking for is 339
5 0
3 years ago
PLEASE HELP ME I NEED THIS ANSWER FOR ALGEBRA!
Marizza181 [45]

Answer:

radius  = 6.2

Step-by-step explanation:

so you already have the formula, which is

\sqrt[3]{ \frac{3v}{4\pi} }

the v represents Volume.

and 3v would be 3×volume.

\sqrt[3]{ \frac{3 \times 1000}{4 \times \pi} }

\sqrt[3]{ \frac{3000}{12.56637061} }

\sqrt[3]{238.7324147 }

= 6.20350491

to the nearest tenth place.

= 6.2

4 0
2 years ago
The equation for the circle below is x2 + y2 = 100. what is the length of the circle's radius?
stealth61 [152]
X²+y² =(Radius)²

x²+y² =10². So the radius is 10

4 0
3 years ago
Read 2 more answers
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