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4 years ago

Given that b=8,a=3,and b=65,find the measure of A. 19.9 or 160.1 B.19.9 C160.1 D not a triangle

Mathematics

1 answer:

xz_007 [3.2K]4 years ago

4 0

Answer: B. 19.9

Step-by-step explanation: Set up an equation where sin and the degree angle is in the numerator, and the side length is in the denominator.

Sin65/8 = Sinx/3

Plug Sin65 into your calculator and you will get 0.9063. Divide this number by 8.

0.9063/8 = 0.1133

Your equation is now 0.1133 = sinx/3

Multiply by 3 on each side.

0.3399 = sinx

Put sin on the left side. It will look like:

Sin^-1(0.3399) = x

Press enter on your calculator. You will get

X = 19.9.

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4 years ago

Solve the inequality. x + 7 > 11 A. x> 18 B. x> −4 C. x > 4 D. x> −18

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Answer:

c. x>4

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3 years ago

Read 2 more answers

Please help I don't understand how to do this

Ganezh [65]

Answer:

m<B=m<K=100

m<A=m<J=133

m<L=m<C=41

m<M=m<D=86

Step-by-step explanation:

Since $ABCD\cong JKLM$ , the corresponding angles are congruent.

This implies that:

$m\angle A=133=m\angle J$

m<L=41=m<C

m<M=86=m<D

The sum of angles in a quadrilateral is 360 degrees.

m<B+133+41+86=360

m<B+260=360

m<B=360-260

m<B=m<K=100

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4 years ago