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stellarik [79]
3 years ago
15

Prove that sin30/cos30+sin60/cos60=sin90​

Mathematics
2 answers:
aev [14]3 years ago
6 0

you just have to expand the trig. functions into their corresponding values and then finish them off.

vovikov84 [41]3 years ago
5 0

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

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HELPPPP Write the equation of a line in slope intercept form with a slope of -3/4 and a y-intercept of -9.
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2 years ago
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At Thanksgiving, Mrs. Jones overcooked the turkey so all but 5 of it had to be thrown away. The 8 people at dinner that
VashaNatasha [74]

<em>The question has inconsistent or incomplete data, so I'm filling the holes with key data.</em>

Answer:

<em>Every people at dinner received one-tenth of the original turkey= 0.1</em>

Step-by-step explanation:

<u>Proportions</u>

If some fraction a/b of a whole total M is to be computed and later removed, we proceed as follows

* Compute the portion to be removed as a/b*M

* Subtract it from the total quantity: M-a/b*M=M(1-a/b)

I'm assuming 1/5 of the turkey was lost due to overcooking. It means that (1-1/5) of the turkey remained for dinner, that is, 4/5 of the turkey.

Each people at dinner received the same amount of the remaining, so we must divide 4/5 by 8, to get 4/40, or 1/10. It means that every people at dinner received one-tenth of the original turkey

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3 years ago
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