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bija089 [108]
3 years ago
10

I just need A,B,C I do t get it

Mathematics
1 answer:
cupoosta [38]3 years ago
3 0
R-4+3r-16=180
4r-20=180
4r=200
r=50

Angle D
r-4
50-4
46

Angle E
3r-16
3•50-16
150-16
134
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I need help solving this equation
solmaris [256]

Answer:

-765

Step-by-step explanation:

-2-7 * 109

-2 - 763

-765

4 0
3 years ago
Read 2 more answers
1. Write the following value in scientific notation: 23,000,000
Bas_tet [7]

Answer:

2.3 by 10^7

Step-by-step explanation:

We want this rewritten in the form 2.3*10^n.

To get the decimal point in 23,000,000 between the 2 and 3, we must move it 7 places to the left, and then compensate for this by multiplying 2.3 by 10^7.

6 0
4 years ago
11. factor the expression. k2 – 16h2 (k 4h)(k – 4h) (k – 4h2)(k 4) h2(k 4)(k – 4) (k 4h)(k 4h)
ANEK [815]
Use\ a^2-b^2=(a-b)(a+b)\\\\k^2-16h^2=k^2-4^2h^2=k^2-(4h)^2=(k-4h)(k+4h)
7 0
4 years ago
Read 2 more answers
Solve the equation A = 2LW + 2LH + 2WH for H.
Fed [463]
H = A - 2LW / 2 (L+W)
6 0
4 years ago
Solve the following by elimination method <br> 11x+15y+23=0 and 7x-2y-20=0
mr Goodwill [35]
Let 11x + 15y + 23 = 0 be equation (1)
And 7x - 2y - 20 = 0 be equation (2)

Multiply equation (1) by 2:
22x + 30y + 46 = 0

Multiply equation (2) by 15:
105x - 30y - 300 = 0

Add equations (1) and (2):
22x + 105x + 30y - 30y + 46 - 300 = 0
127x - 254 = 0
127x = 254
x = 254/127
[x = 2]

Substitute x = 2 in equation (1) to find y:
11(2) + 15y + 23 = 0
22 + 15y + 23 = 0
15y + 45 = 0
15y = -45
y = -45/15
y = -3

Therefore, x = 2 and y = -3.
7 0
4 years ago
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