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Serjik [45]
3 years ago
13

How do you solve this and please use explanation if you can.

Mathematics
1 answer:
Anastasy [175]3 years ago
3 0

Answer:

i honestly dont know

Step-by-step explanation:

i need pointsss

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*** PLEASE HELP ASAP!!* Kayla used a piece of cardstock with an
AysviL [449]

Answer:

This should be 4x - 8x + 8

Step-by-step explanation:

8 0
3 years ago
Cot^2 135-sin210+5cos^2 225
TiliK225 [7]
\cot135^o=\cot(90^o+45^o)=-\tg45^o=-1\\\\\sin210^o=\sin(180^o+30^o)=-\sin30^o=-\dfrac{1}{2}\\\\\cos225^o=\cos(180^o+45^o)=-\cos45^o=-\dfrac{\sqrt2}{2}

\cot^2135^o-\sin210^o+5\cos^2225^o=(-1)^2-\left(-\dfrac{1}{2}\right)+5\cdot\left(-\dfrac{\sqrt2}{2}\right)^2\\\\=1+\dfrac{1}{2}+5\cdot\dfrac{1}{2}=1\dfrac{1}{2}+2\dfrac{1}{2}=4

Answer: 4.
3 0
4 years ago
Plz help!!!!!!!!!!!!
Usimov [2.4K]

Answer:   \bold{8\sqrt[5]{8} }

<u>Step-by-step explanation:</u>

64^{\frac{3}{5}}\\\\=2^{6(\frac{3}{5})}\\\\=2^{\frac{18}{5}}\\\\=2^{\frac{15}{5}}\cdot 2^{\frac{3}{5}}\\\\=2^3\cdot \sqrt[5]{2^3} \\\\=\boxed{8\sqrt[5]{8} }

3 0
3 years ago
Express 0.00078456 in scientific notation
Annette [7]
7.8456 x 10^(-4)

this means you move the decimal place to the left 4 places to get the actual value
5 0
3 years ago
Read 2 more answers
Some number added to -11 is 37. divide this number by -12. then multiply by -8. what is the final
Tems11 [23]

The answer is 17.3

I found it by subtracting 11 by 37 then you just finish calculating.

U are welcome

7 0
3 years ago
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