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lisov135 [29]
3 years ago
13

Can someone smart help me with this:)

Mathematics
1 answer:
MrRissso [65]3 years ago
7 0

Answer:

D = 76°

C = 32°

Step-by-step explanation:

I have attached a picture with an explanation above. Hope it helps : )

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cupoosta [38]

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Step-by-step explanation:

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Prove that the value of the expression<br> (16^3–8^3)(4^3 +2^3) is divisible by 63.
Darya [45]

Answer:

Step-by-step explanation:

16^3 - 8^3

Take out 8^3 as a common factor.

16^3 = 2^3 * 8^3

8^3(2^3 - 1)  

8^3(8 - 1) = 8^3 * 7

(4^3 + 2^3)     Expand

64 + 8            Combine

72

72 = 9 * 8

Conclusion

(8*3 * 7 )(9*8)

7*9 = 63

So any number containing 63 will divide into the reduced form of

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2 years ago
Find the first, fourth, and eighth terms of the sequence. A(n) = −2 ∙ 2^x − 1
geniusboy [140]

a_n=-2\cdot2^{n-1}\\\\n=1\to a_1=-2\cdot2^{1-1}=-2\cdot2^0=-2\cdot1=-2\\\\n=4\to a_4=-2\cdot2^{4-1}=-2\cdot2^3=-2\cdot8=-16\\\\n=8\to a_8=-2\cdot2^{8-1}=-2\cdot2^7=-2\cdot128=-256\\\\Answer:\ C. -2;\ -16;\ -256

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Please its worth 20 points I will give you brainliest!!!​
trapecia [35]

Answer:

you can use desmos or symbolab

Step-by-step explanation:

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Melissa estimated the length of a room is her house to be 13 ft . The actual length of the room is 11 ft. Find the absolute erro
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Step-by-step explanation:

4 cm

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