What is a good estimate for 380% of 20
2 answers:
Answer:
380 divided by 20 is your answer
Step-by-step explanation:
Answer:
The answer is 76. The estimation would be 80.
Step-by-step explanation:
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The same value as cosα
cosα=sin(90-α) and vice versa
sinα=cos(90-α)
That's a quadratic equation in
![x^2](https://tex.z-dn.net/?f=x%5E2)
, which means we get an extra square root and
![\pm](https://tex.z-dn.net/?f=%5Cpm)
at the end.
![x^4 - x^2 - 42 = 0](https://tex.z-dn.net/?f=x%5E4%20-%20x%5E2%20-%2042%20%3D%200)
We factor,
![(x^2 - 7)(x^2+6) = 0](https://tex.z-dn.net/?f=%28x%5E2%20-%207%29%28x%5E2%2B6%29%20%3D%200)
![x^2 = 7 \quad \textrm{or} \quad x^2 = -6](https://tex.z-dn.net/?f=x%5E2%20%3D%207%20%5Cquad%20%5Ctextrm%7Bor%7D%20%5Cquad%20x%5E2%20%3D%20-6)
Answer:
359.1
Step-by-step explanation:
100 - 20.2 is 79.8
79.8 x 4.5 is 359.1
therefore it is 359.1
Answer:
n=R
Step-by-step explanation:
f(n)=9n+1
Answer:
i know 4 is 1 i think
Step-by-step explanation: