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Mashcka [7]
3 years ago
12

Use a half-angle identity to find the exact value of sin 3pi/8

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

Answer:

The answer is A

Step-by-step explanation:

svet-max [94.6K]3 years ago
6 0

The above answer is correct! The correct response is A.

Just got it right on edge 2020, hope this helps!! Good luck, and have a great day! :)

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Can someone help please?
Alekssandra [29.7K]

Answer:

y=1X

Step-by-step explanation:

This is because the distance over the money made over the days worked is 2/2 which simplifies to 1 so that would be the one x. then the y intercept is found on the y axis where does the line cross the y axis? this would be at zero so you do not need to put that in the equation

8 0
3 years ago
What is the value of x<br> What is the value of the exterior angle
Oduvanchick [21]

Answer:

???????

Step-by-step explanation:

triangles add to 180 degrees

lets call the unknown angle y

82 + x + y = 180

we also know that y + (2x-20 ) = 180  because it is a straight line

lets solve this for y

y + (2x-20 ) = 180

subtract (2x-20) from each side

y = 180 - (2x-20)

y = 180 - 2x + 20

y = 200 -2x

substitute this in the triangle equation

82 + x + y = 180

82 + x + 200 -2x = 180

combine like terms

282 -x = 180

subtract 282 from each side

-x = -102

multiply by -1 on each side

x = 102

the exterior angle is 2x-20

exterior angle is 2(102) -20

exterior angle is 204-20

exterior angle is 184

This is impossible.


There is a mistake with this problem

The triangle is not a triangle.  Angle y would be negative. y=-4

6 0
3 years ago
V
Vanyuwa [196]

Answer:5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
2.5 x 1 1/10 x 9/3 / 1/2
Allisa [31]
4.125 is the answer
8 0
3 years ago
Jamal Buys a lunch special for $9.50And a dessert for $3.50. He wants to leave a tip that is about 15% of the bill. He estimates
sergey [27]

Answer:

  His estimate is somewhat low.

Step-by-step explanation:

The total bill is $9.50 +3.50 = $13.00. The estimated tip is 15% of $10, so Jamal needs to add 15% of $3, or $0.45, to his estimate to leave a tip equal to 15% of the bill.

The tip Jamal has calculated is about 11.5% of the bill. (1.50/13.00 ≈ 0.1154)

The tip Jamal wants to leave is $1.95. (0.15·13.00 = 1.95)

3 0
3 years ago
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