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Svetlanka [38]
2 years ago
15

HELP PLS

Mathematics
1 answer:
lawyer [7]2 years ago
8 0

Answer:

C

Step-by-step explanation:

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Need help please ASAP
aivan3 [116]

Answer:

B.)8ft

Step-by-step explanation:

Set up a proportional to the roof slope:

2/5 = x/20

Cross multiply:

40/5 = 5x/5

x=8ft

7 0
2 years ago
Read 2 more answers
When given an algebraic expression involving subtraction, why is it best to rewrite the expression using addition before identif
Ray Of Light [21]
Usually when you do expressions involving subtraction you can do Keep, Change ,Change
That means you keep the sign of the first number and change the other two signs.
It is best you rewrite the expression to addition because a lot of people don't do well with subtracting .
4 0
2 years ago
Find the radius of the circle. please.
labwork [276]

Answer:

12in

Step-by-step explanation:

2r = 24

r = 12

8 0
2 years ago
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Convert (1, 1) to polar form.<br> A. (2,459<br> B. (1,459)<br> C.(2, 2259)<br> D.(72,459)
timama [110]

Polar form: (r,θ)

Using these formulas:

x²+y²=r²

tan(θ)=y/x

We have the point (1,1) in cartesian coordinates. We need to find r and θ to get it in polar form.

r²=1²+1²

r²=2

r=±√2

tan(θ)=1/1

tan(θ)=1

θ=π/4 radians or 45 degrees

Polar coordinates: (√2,π/4)

Those answer choices look strange. Are you sure these are the right answer choices?

5 0
3 years ago
Read 2 more answers
Find the value of y that makes the equation y= 1/2x- 2 true when x=4 A. -4
olchik [2.2K]

Answer:

y = 0

Step-by-step explanation:

y =1/2(4)-2

y= 2-2

y=0

6 0
2 years ago
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