1 year ago

In ABC, AB=3 and AC=9 find m<B to the nearest degree

Mathematics

2 answers:

olga55 [171]1 year ago

7 0

Answer: 72° (nearest degree)

Semmy [17]1 year ago

4 0

By definition,
tanB = opposite/adjacent = 9/3 = 3

From the calculator,
B = arctan(3) = 71.6°

Answer: 72° (nearest degree)

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A` ( 7, 7 )
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we have

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we know that

To find out how many times as long is the course of the Idita rod Trail ultra-marathon as that of the Boston Marathon, divide the length of the Idita rod Trail Invitational ultra-marathon by the length of the Boston Marathon

$\frac{y}{x}$

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Remember that

To divide two numbers in scientific notation, divide their coefficients and subtract their exponents

$\frac{1.6*10^6}{4.2*10^4}=\frac{1.6}{4.2}*(10^{6-4})=0.381*(10^{2})=38.1$

therefore

The ultra-marathon Idita Rod Trail is about 38 times longer than the Boston Marathon.

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1 year ago

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viva [34]

Answer:

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1 year ago