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Pie
4 years ago
14

Find the missing terms in the equation so that it is true. (3x + ?)^2=9x^2 + ?? +49y^2

Mathematics
1 answer:
valkas [14]4 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

Note that 9x² and 49y² are perfect squares.

9x² = (3x)² → 3x is the first term

49y² = (7y)² → 7y is the second term

Hence

(3x + 7y)² = 9x² + 42xy + 49y²

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ollegr [7]
To find a percentage, if I am ready your question correctly, would be as simple as dividing the number by 100. For example, finding the percentage of 73.

73/100 = .73%

You could also just move the decimal place over two spots to the left.
7 0
3 years ago
A triangle has side lengths of 14 cm and 7 cm. Which could be the value of the third side, 22 cm or 20 cm?
Eddi Din [679]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
What is 1/10 + 1/4 + 1/5+2/15? A.41/60 B 6/41 C 11/12 D 1/7 
den301095 [7]
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7 0
4 years ago
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The members of a club decide to sell hats to raise money. They originally
finlep [7]

Answer:

A. 41 (12 - 2)

Step-by-step explanation:

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Hope this helped :)

7 0
2 years ago
In order to prove △ABC ≅ △DBC by SAS, what additional information must be given?
SCORPION-xisa [38]
<span>The answer should be this ∠ACB ≅ ∠DCB. I hope this helps</span>
5 0
3 years ago
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