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Lena [83]
2 years ago
12

I'll give brainliest -4n(5n+6)-5(3+3n)

Mathematics
1 answer:
motikmotik2 years ago
8 0

Answer:

-20n^2-39n-15

Step-by-step explanation:

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Angles R and S are complementary. If angle R is = 4x - 20 and angle S = 6x - 7, then angle R measures ___ degrees.
Shalnov [3]

Answer:

26.8°

Step-by-step explanation:

4x - 20 + 6x - 7 = 90

10x -27 =90

10x = 90+27

10x= 117

x = 11.7

so, the angle R = 4x-20 =4(11.7)-20

= 46.8-20 = 26.8°

6 0
2 years ago
What is 5/20 as a percent if you could give an explanation that would be good but if not thats okay
Liono4ka [1.6K]
5/20 can also be represented as 25/100 or 25%. The can be done by multiplying the top and bottom both by 5 and then dividing our numerator (25) by our denominator(100) to get the %.
3 0
3 years ago
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wolverine [178]

Answer:

tan(π−2/5)

decimal form -0.42

6 0
3 years ago
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Fittoniya [83]

Answer:

30

Step-by-step explanation:

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Three to the power of negative two
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