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kherson [118]
2 years ago
15

Please help me with this problem!

Mathematics
2 answers:
san4es73 [151]2 years ago
8 0

Answer:

The choice A ;

\frac{1}{ {7}^{8} }

Step-by-step explanation:

\frac{ {7}^{ - 6} }{ {7}^{2} }  =  \frac{ {7}^{ - 6 - 2} }{1}  =  {7}^{ - 8}  =  \frac{1}{  {7}^{8} }  \\  \\  \\ or. \:  \frac{ {7}^{ - 6} }{ {7}^{2} }  =  \frac{1}{ {7}^{ 2 + 6} }  =  \frac{1}{ {7}^{8} }

Lilit [14]2 years ago
3 0

Hii!

Answer:

Step-by-step explanation:

Use the rule of exponents.

If we divide two numbers with the same bases, we subtract the exponents.

7^-6/7^2=7^-6-2=7^-8

Now, if we have a negative exponent, we flip over the number.

7^-8=1/7^8

Great job!

—

Hope that this helped.

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<u>Given</u><u> info</u><u>:</u><u>-</u> In triangle (∆)ABC , in which ∠A = 2x, ∠B = x+15° and ∠C = 2x + 10°. Then find the value of x , also find the measure of each angles of a triangle.

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Let the angles be 2x, x+15 and 2x+10 respectively.

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∴ ∠A + ∠B + ∠C = 180° [Sum of ∠s of a ∆=180°]

→2x + x+15 + 2x+10 = 180°

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Step-by-step explanation:


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