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mihalych1998 [28]
3 years ago
6

Simplify 3 square root of 5 end root minus 2 square root of 7 end root plus square root of 45 end root minus square root of 28

Mathematics
2 answers:
Lana71 [14]3 years ago
6 0
Hello,

3 \sqrt{5} -2 \sqrt{7} + \sqrt{45} - \sqrt{28}\\\\
= 3 \sqrt{5} -2 \sqrt{7} + 3\sqrt{5} - 2\sqrt{7}\\\\
=6 \sqrt{5} -4 \sqrt{7} 




Natasha2012 [34]3 years ago
6 0

Answer:

6√5 - 4√7

Step-by-step explanation:

Simplified from other answer

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The probability that a two-digit number selected at random has a tens digit less than its units digit is 0.2667 (4/15).

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Which points are on the graph of the equation - 3x + 6y + 5 = -7?
ludmilkaskok [199]

Answer:

C and E

Step-by-step explanation:

To solve this problem, let's plug in each coordinates into the equation.

A:

  • -3(-3) + 6(6) + 5 = -7
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  • 50 = -7
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B:

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C:

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  • 0 - 12 + 5 = -7
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  • C. can be the answer, as -7 does equal -7.

D:

  • -3(6)+6(-3)+5=-7
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  • -31\neq -7
  • D. cannot be the answer, as -31 does not equal -7.

E:

  • -3(8) + 6(2) + 5 = -7
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  • -12 + 5 = -7
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  • E. can be the answer, as -7 does equal -7.
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