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Andrej [43]
3 years ago
9

Which of the following is NOT a prime number?

Mathematics
1 answer:
OLEGan [10]3 years ago
3 0
1,057 is NOT a prime number. 3,163, 263, and 157 ARE prime numbers.
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What is the value of 3×^2+4y^2 if x=2 y=1,and z=-3
lapo4ka [179]
3(2)^2+4(1)^2
3x4+4
12+4
16
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6 0
3 years ago
In a random population, out of 500 people, 160 had blue eyes. In a group of 2500 people, how many would have blue eyes?
Artist 52 [7]
<h3>Answer:   800</h3>

======================================================

Work Shown:

(160 with blue eyes)/(500 total) = (x with blue eyes)/(2500 total)

160/500 = x/2500

x = 2500*(160/500)

x = 800

------------

Another approach:

160/500 = 0.32 = 32% of the first group has blue eyes

Assuming this percentage is the same for any group, then,

32% of 2500 = 0.32*2500 = 800 people of the second group are estimated to have blue eyes, of the 2500 total.

7 0
2 years ago
Is this is right, please anyone!
Nat2105 [25]
90% of 130 is 117 because 10% is 13 and 13x9 is 117 so that is part a. 130-117 is 13 so that is part b. And part c is correct because 100%-90%=10%. I hope this is helpful.
4 0
3 years ago
1 Round the number 5.014937 to the nearest hundredth.
e-lub [12.9K]
Your answer would be 5.01 because to round to the hundredths means two decimal points meaning 5.014. The 4 is not more than 5 so it wouldn’t make the 1 move up. So it stays 5.01.
5 0
3 years ago
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