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Bingel [31]
3 years ago
15

Use a half-angle identity to find the exact value of sin pi/8

Mathematics
2 answers:
const2013 [10]3 years ago
7 0

Answer: \frac{\sqrt{2-\sqrt{2} } }{2}

Step-by-step explanation:

B on edge

riadik2000 [5.3K]3 years ago
6 0
Use a half-angle identity to find the exact value of sin pi/8

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{y=x−75x+2y=7<br> Use the substitution method.<br><br> (0, −7)<br> (3, −4)<br> (7, 0)<br> (−1, −8)
harkovskaia [24]
<span>A) y=x−7
B) </span><span><span>5</span>x+2y=7
A) x = y + 7
Substituting this into B)
</span>
<span>y + 7 +2y = 7
</span>
3y = 0
y = 0
x = 7

Answer is C (7,0)

4 0
4 years ago
I bought 120g of candies for $1.65, how much would 70g cost, and how much could i buy for $3.80
VladimirAG [237]
70 g* ($1.65/ 120 g)= $0.96.

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70 g of candies would cost $0.96
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4 0
4 years ago
Write the rational number 1.5 using quotients of the form p/q. Use the integers below.
Kaylis [27]

Answer:

3/2

Step-by-step explanation:

You didn't provide any integers.

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8 0
3 years ago
Find the circumference of the circle and round to the nearest tenth
ikadub [295]

Answer:

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Find the equation of a line perpendicular to 8x - 2y = 4 and passes through the point (4, 3).
12345 [234]

y = -2x-3

Lines that are perpendicular have slopes that are negative reciprocals of each other. Meaning, if a line has slope  , then a line perpendicular to this has slope . That means the slope of our perpendicular line is

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