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Shtirlitz [24]
3 years ago
14

I need help please i will give brainly ​

Mathematics
2 answers:
Arisa [49]3 years ago
4 0

Answer:

C

Step-by-step explanation:

r-ruslan [8.4K]3 years ago
4 0

Answer:

C

Step-by-step explanation:

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Find the mean of the set of data. Use a calculator if necessary.
dangina [55]

Answer:

7

Step-by-step explanation:

mean is average of the numbers

add all values then divide by the numbers

(1+5+8+10+11) / 5

35 / 5 = 7

5 0
3 years ago
Read 2 more answers
-x^(2)-12=-87<br><br> Please explain your answer, and how I make the x positive
spayn [35]
Solve for x over the real numbers:
-x^2 - 12 = -87
Add 12 to both sides:
-x^2 = -75
Multiply both sides by -1:
x^2 = 75
Take the square root of both sides:
Answer:  x = 5 sqrt(3) or x = -5 sqrt(3)  both Answers are correct
7 0
3 years ago
(b^4)^2 need help plz
lisov135 [29]
<span>(b^4)^2 = b^(4x2) = b^8

answer
b^8</span>
6 0
3 years ago
The radius of a circle is 3 miles. What is the length of a 90° arc?
stealth61 [152]

Answer:

The length of the arc is 4.6375 miles

Step-by-step explanation:

Firstly, find the perimeter of the circle by doing 2*pi*r, you'll get about 18.55 miles.

2*pi*r ---> 2*pi*3 ---> 6*pi ---> ≈ 18.55 miles

Next, plug in x/360, where 360 is the total arc of a circle, and x is the arc you need.

x/360 ---> 90/360 ---> = 0.25

Lastly multiply the two numbers.

18.55 * 0.25 ---> 4.6375 miles is your answer.

<em>(you may need to round your answer if needed)</em>

3 0
3 years ago
-353.92- ( -283.56 -131.29 =
sergiy2304 [10]

Answer:

-768.21

Step-by-step explanation:

<em>I hope this helped you! Have a great day!</em>

6 0
3 years ago
Read 2 more answers
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