3 years ago

What is the sum of the first five prime numbers?

Mathematics

1 answer:

Harrizon [31]3 years ago

8 0

Answer:

I believe the answer is 28

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What is the solution to the equation? 2 x squared plus 4 equals 20 Choose all answers that are correct.

Stolb23 [73]

$2x^2+4=20\ \ \ \ |subtract\ 4\ from\ both\ sides\\\\2x^2=16\ \ \ \ \ |divide\ both\ sides\ by\ 2\\\\x^2=8\iff x=\pm\sqrt8\\----------------------------\\\sqrt8=\sqrt{4\cdot2}=\sqrt4\cdot\sqrt2=2\cdot\sqrt2=2\sqrt2\ \ \ |use\ \sqrt{a\cdot b}=\sqrt{a}\cdot\sqrt{b}\\-----------------------------\\therefore\ your\ answer\ is\ -2\sqrt2\ and\ 2\sqrt2\to\boxed{a\ and\ c}$

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2 years ago

Avery has 125 animal stickers. She gave 5 animal stickers to each of her 10 friends. HoW many animal stickers she have left? Wha

Angelina_Jolie [31]

Answer:

Step-by-step explanation:

125-(5*10)

125-(50)

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2 years ago

Convert 6.42 kilograms to grams. 0.00642 g 64.2 g 642 g 6,420 g

Katarina [22]

1 kilogram (kg) equals to 1000 grams (g). Since you have 6.42 kilograms, divide 6.42 kilograms to 1000 grams. Your final answer is 6420 grams in total.

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2 years ago

Six different second-year medical students at Bellevue Hospital measured the blood pressure of the same person. The systolic re

Sauron [17]

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2 years ago

Which decimal is equivalent to -3 1/8 Please i need help quick

aalyn [17]

Answer:

-3.125

Step-by-step explanation:

multiply -3*8 to get -24/8 then add the numerator -1/8+-24/8 to get -25/8 then convert by dividing -25/-8 to get -3.125

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2 years ago

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