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LiRa [457]
3 years ago
11

A rafter makes an angle of 28° with the horizontal. If the rafter is 15 feet long, what is the height at the rafter's peak? Draw

a diagram.​
Mathematics
1 answer:
leonid [27]3 years ago
8 0

Answer:8

Step-by-step explanation:

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No link please I need a answer
Kryger [21]

Answer: 10

Step-by-step explanation:

We need to find the hypotenuse (the hypotenuse is the diagonal side of a right triangle), so we can use this formula: a^2+b^2=c^2

The two "legs" are a and b (it doesn't matter which leg is a and which leg is b), but the most important thing is that the hypotenuse is c.

So, we now know that we have to solve for c. To solve for c, substitute the values shown in the image for a and b

a^2+b^2=c^2

6^2+8^2=c^2

36+64=c^2

100=c^2

\sqrt{100}=c

c=10

7 0
3 years ago
X-6y-2z= 7<br> -2x+5y-2z= -1<br> -5x+6y+5z= -6
emmasim [6.3K]

Answer:

do you need the value of x?

x=7+6y+2z

-2(7+6y+2z)+5y+2z=-1 -7y=13+2z

-14-12y-4z+5y+2z=-1

-14-7y-2z=-1

-7y-2z=-1+14

-7y-2z=13

5 0
3 years ago
35 is 20% is what number ANSWER FAST!!!!!<br> Please show work with double number line Thanks.
Nutka1998 [239]
The answer is 175!!!!!!!
4 0
3 years ago
Read 2 more answers
there are 4 boxes of 100 sheets of paper and some single sheets of paper in the closet choose all the numbers that shows how man
maxonik [38]
400 sheets?

kind of confused me at first.
5 0
3 years ago
Read 2 more answers
Factor completely:<br><br> 1. 9x^2 + 3x − 90
malfutka [58]

Answer:

9x^2+3x-90

81x+3x-90

84x-90 final answer

Step-by-step explanation:

7 0
3 years ago
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