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masya89 [10]
2 years ago
15

What is the square root of 9?

Mathematics
2 answers:
Elza [17]2 years ago
7 0
The square root of nine is three.
BabaBlast [244]2 years ago
4 0
The square root of 9 would be 3. as 3 x 3 =9
the square root of any number is asking what number times itself will give you the given number you are trying to square root. for example, the square root of 36 would be 6, as 6 x 6 = 36. I hope this helped
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N a​ region, there is a 0.70.7 probability chance that a randomly selected person of the population has brown eyes. assume 1414
taurus [48]
'll use the binomial approach. We need to calculate the probabilities that 9, 10 or 11 
<span>people have brown eyes. The probability that any one person has brown eyes is 0.8, </span>
<span>so the probability that they don't is 1 - 0.8 = 0.2. So the appropriate binomial terms are </span>

<span>(11 C 9)(0.8)^9*(0.2)^2 + (11 C 10)(0.8)^10*(0.2)^1 + (11 C 11)(0.8)^11*(0.2)^0 = </span>

<span>0.2953 + 0.2362 + 0.0859 = 0.6174, or about 61.7 %. Since this is over 50%, it </span>

<span>is more likely than not that 9 of 11 randomly chosen people have brown eyes, at </span>
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<span>Note that (n C r) = n!/((n-r)!*r!). So (11 C 9) = 55, (11 C 10) = 11 and (11 C 0) = 1.</span>
8 0
3 years ago
An electrician charges $35 per hour plus a fixed amount for residential work. For a job that took 6 hours, he billed $270. Write
Alexeev081 [22]
With the information provided, we can begin with the equation:

y=35x + b

With x = number of hours, y = total cost, b = fixed amount that is charged for residential work

We know that after 6 hours, $270 was charged:

$270 = $35(6) + b

Solve for b:

b = $270 - $210 = $60

The fixed amount that is charged for residential work is $60. So now we can rewrite the equation as:

y = 35x + 60
7 0
2 years ago
−k+2(−2k−5) simplified
zavuch27 [327]

Step-by-step explanation:

Square Mc hammered Square Puff

4 0
2 years ago
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Solve the equation. 8x2 – 4 = 28
Flura [38]
Hello,

Your answer would be 2, -2.

8x^2 - 4 = 28

8x^2-4+4=28+4

8x^2 = 32

\frac{8x^2}{8}=  \frac{32}{8}  &#10;

x^2 = 4

x = +/4 

x = 2 or x = -2

2 , -2 would be the answer! :)


Mark Brainliest if this helped you :)
4 0
2 years ago
Read 2 more answers
83 simplified<br> whoever gets it right is the brainliest
Alina [70]
83 is a whole number and cannot be simplified.
8 0
3 years ago
Read 2 more answers
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