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zhenek [66]
3 years ago
15

Can someone help em with these questions?! Will mark brainiest!!!

Mathematics
2 answers:
Crazy boy [7]3 years ago
8 0

The answers from questions 6 to 9 are A, C, D, and C.

JulsSmile [24]3 years ago
8 0

Answer:

6.A

7.C

8.B

9.C

Step-by-step explanation:

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Write the expression as the sine or cosine of an angle sin(pi/7) cos(x) + cos(pi/7) sin(x)
Natasha_Volkova [10]

Answer:

\sin(\frac{\pi}{7}+x)

Step-by-step explanation:

We are going to use the identity

\sin(a+b)=\sin(a)\cos(b)+\cos(a)\sin(b)

because this identities right hand side matches your expression where

a=\frac{\pi}{7} and b=x.

So we have that \sin(\frac{\pi}{7})\cos(x)+\cos(\frac{\pi}{7})\sin(x) is equal to \sin(\frac{\pi}{7}+x).

5 0
3 years ago
A vase in Sharon's kitchen cabinet is in the shape of a cylinder. The base of the vase has a radius of 6 inches.What is the circ
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Step by step explanation:

R squared= 6inchx6inch=36inchxpie
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Answer:

113.04 I think. I hope this helped
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3 years ago
3 cars are washed 27 minutes at a car wash
andreyandreev [35.5K]

Answer:

Each car takes about 9 minutes to be washed.

8 0
3 years ago
What is the cost of a $19,500 car plus a 6% sales tax?
mina [271]
The answer would be 20,670
8 0
2 years ago
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Find the x-coordinate for the midpoint of AB if A(-3, 8) and B(-7,-6).
spayn [35]

x =-5

------

1) Since the Formula of the Midpoint is:

2) So Let's plug it into the formula the values, for A, and B

3) So the x coordinate of the Midpoint is x =-5

4 0
1 year ago
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