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nikitadnepr [17]
2 years ago
12

Use the product-to-sum formula to find the exact value: If 2sin 52.5° sin 97.5° then A=

Mathematics
1 answer:
kompoz [17]2 years ago
5 0

Answer:

A = 3

Step-by-step explanation:

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Please see attached picture for question:​
Tasya [4]

10^2x²-3=10^9-x²

by comparison,

2x²-3=9-x²

3x²=12

x²=4

x= 2 or -2

4 0
3 years ago
Simplify.
sergey [27]
2y+7z hope this helped dude
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3 years ago
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В треугольник abc биссектриса угла a делит сторону bc на отрезки 15 см и 20 см
LenaWriter [7]

Answer:

wah

Step-by-step explanation:

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3 years ago
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12men or 18women can reap a field in 14 day ,8man and 16women can reap the same field in​
melisa1 [442]

Answer:

Step-by-step explanation:

12 men and 18 women: x1; 14 days; y1

8 men and 16 women: x2; ?; y2

12/18 simplified is equal to 2/3

8/16 simplified is equal to 1/2

This is a direct proportion, thus we can say that:

(1/2*14)/(2/3)=y2

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I hope this helped you get out of homework trouble :D

OwO

5 0
3 years ago
In the figure, m<2 = 44. What is the measure of <1?
fredd [130]

Answer:

m∠1 = 112°

Step-by-step explanation:

To solve for m∠1, we need to find the supplementary angle and subtract from 180°.  We also know that m∠2 = 44° and the remaining two angles inside the triangle are the same because of the congruent sides, let's call each angle x.

Therefore m∠2 + x + x = 180; combine x's

m∠2 + 2x = 180; substitute m∠2 = 44°

44 + 2x = 180; subtract 44 from both sides

2x = 136; divide by 2

x = 68°

Therefore using the supplementary angle

x + m∠1 = 180 (because it is supplementary)

68 + m∠1 = 180; subtract 68 from both sides

m∠1 = 112°

7 0
2 years ago
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