3 years ago

Use one or more exponents to write the expression 9 x 9 x 9 x 9 x 7 x 7

Mathematics

1 answer:

Helen [10]3 years ago

6 0

Answer:

9^3 times 7^2

Step-by-step explanation:

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Help ASAP PICTURE INCLUDED ! /

Tanya [424]

Answer:

x=34

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m∠T = 111

Step-by-step explanation:

Since the angles of a triangle should add up to 180, you can solve this equation:

31 + x+4 + 3x+9 = 180

the solution is x=34

Then the angles S and T can be found by substituting that value for x.

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3 years ago

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alexdok [17]

$a-b=21 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\times (-2) \\
5a-2b=18 \\ \\
-2a+2b=-42 \\
\underline{5a-2b=18 \ \ \ \ \ \ \ } \\
5a-2a=18-42 \\ 3a=-24 \\
a=\frac{-24}{3} \\
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-8-b=21 \\
-b=21+8 \\
-b=29 \\
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4 years ago

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bogdanovich [222]

Answer:

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that is the procedure above

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3 years ago

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