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rjkz [21]
3 years ago
10

What is the cosine for a angle of 15 degrees?

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0

Answer:

0.965925826 = 0.97

Step-by-step explanation:

just put in the calculator >>> cos(15)

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Circle A has an area of 452.16ft2. With a radius of 12 ft. If circle B has a radius of 17 ft, what is it’s area?
ehidna [41]

Answer: 907.92 ft²

Step-by-step explanation:

1. To solve this problem you must apply the formula for calculate the area of a circle, which is shown below:

A=r^{2}\pi

Where r is the radius of the circle.

2. You know the radius of the circle B, therefore, when you susbtitute it into the formula, you obtain that the area of the circle B is:

A_B=(17ft)^{2}\pi=907.92ft^{2}

7 0
3 years ago
Read 2 more answers
X²+7x+10=0 a=1, b=7, c=10 b²-4ac=(7)²-4(1) (10) =49-4(10) =49-40 =9​
Sloan [31]

Answer:

X=5

X=2

Step-by-step explanation:

8 0
3 years ago
Find f^-1(x) and it’s domain.
Mrac [35]

Answer: A

Step-by-step explanation:

Letting f(y)=x,

x=\sqrt{y}-5\\\\x+5=\sqrt{y}\\\\y=(x+5)^{2}

Also, the domain of an inverse is the same as the range of the original function, so the range is x \geq 0

7 0
2 years ago
Can someone plz help thxs
emmasim [6.3K]
Sheeeeeeessssssshhhhhhhh
4 0
3 years ago
PLEASE HELP, I’m confused. I don’t know how to do this stuff... explain your answer. Thank you!!!!
Maurinko [17]

Answer:

C) y = 2x + 3

Step-by-step explanation: You have to substitute 1 for x & 5 for y & 2 for m, but 1st do the point slope form ---> slope intercept form.

y -Y1 = m(x - X1)

y - 5 = 2(x - 1)

y - 5 = 2x - 2

  +5          + 5

y = 2x + 3 --- IN SLOPE INTERCEPT FORM

Hope this helps you!!! :)



4 0
3 years ago
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