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Orlov [11]
3 years ago
15

How to know if true or false?? HELP ASAP thank you! picture added.

Mathematics
1 answer:
Tom [10]3 years ago
7 0
True
Because a negative square root is an i
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What’s the answer of the equation:<br><br> 104mn + (-84mn) =36
inn [45]

Answer:

1\frac{4}{5}mn

Step-by-step explanation:

104mn - 84mn = 36 \\  \\ 20mn = 36 \\  \\ 1\frac{4}{5}mn

This what you can do unless you are solving for either variable.

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danny has a trianglular pyramid all triangles are conguent what is the surface area?​the height is 6in and the width is 5in
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Answer: The answer is 60 square inches.

Step-by-step explanation:  Given that Danny has a triangular pyramid where all the four triangles are congruent. The height and base of one triangle are 6 inches and 5 inches respectively. We are to find the surface area of the pyramid.

The area of one triangle is given by

A=\dfrac{1}{2}\times\textup{base}\times\textup{height}=\dfrac{1}{2}\times 5\times 6=15~\textup{sq. inches}.

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S=4\times A=4\times 15=60~\textup{sq. inches}.

Thus, the answer is 60 sq. inches.

8 0
4 years ago
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Subtract -13xy from -5xy so<br> -5xy -(-13xy)=?
S_A_V [24]

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Subtract -13xy from -5xy

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<em>good luck, i hope this helps:)</em>

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What is the solution of 4 + √ 5x + 68 = x + 10​
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