Please help type the integer that represents the correct answer the opposite of 7

1 answer:

tatiyna4 years ago

4 0

I think it would be -7. Is that one of your options?

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nexus9112 [7]

Answer:

$AB=20\sin 80^{\circ}\approx 19.7\ in\\ \\AC=20\sin 65^{\circ}\approx 18.1\ in\\ \\BC=20\sin 35^{\circ}\approx 11.5\ in$

Step-by-step explanation:

In triangle ABC, OA = OB = OC = 10 in. These segments are radii of sircumscribed circle. So, R = 10 in.

The sum of all interio angles is 180°, so

m∠C=180°-35°-65°=80°

Use the sine theorem,

$\dfrac{AB}{\sin C}=\dfrac{AC}{\sin B}=\dfrac{BC}{\sin A}=2R$

Thus,

$\dfrac{AB}{\sin 80^{\circ}}=\dfrac{AC}{\sin 65^{\circ}}=\dfrac{BC}{\sin 35^{\circ}}=20$

Therefore,

$AB=20\sin 80^{\circ}\approx 19.7\ in\\ \\AC=20\sin 65^{\circ}\approx 18.1\ in\\ \\BC=20\sin 35^{\circ}\approx 11.5\ in$

7 0

3 years ago

kari74 [83]

The answer is -3
hope it helps

8 0

4 years ago

koban [17]

Answer:B

Step-by-step explanation: 0.4 × 0.4 = 0.16 not much more explanation than that really

5 0

3 years ago

hammer [34]

The correct answer would in fact be 52

3 0

3 years ago

vitfil [10]

The variable x represents the base.

x+(x-52)+(x+56)=166
3x+4=166
3x=162
x=54

Final answer: 54 cm

4 0

3 years ago