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ad-work [718]
2 years ago
5

Prove that Sin2(90-theta)(1+cot2(90-theta))=1

Mathematics
1 answer:
s2008m [1.1K]2 years ago
8 0

Step-by-step explanation:

The Answer is in the photo

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Which conversion factor below you can use to convert gallons to pints?
Korvikt [17]

Answer: 1 Cup = 8 fl oz

Step-by-step explanation:

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3 years ago
Diviseur de 63 et 67
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<span>Diviseur de 63 et 67</span>

<span>
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<span>0.94029850746</span>

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2 years ago
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Mr seidel filled up his 14 gallon gas tank for $29.96 what was the price per gallon
Genrish500 [490]
2.14 is the price per gallon.

I figured this out by dividing 14 by 29.96 and I got 2.14 and to check my work I multiplied 2.14 by 14 and got 29.96 .
6 0
3 years ago
In a race between 18 people, how many ways can the top 5 finishers be arranged?
snow_lady [41]

Answer:

Step-by-step explanation:

This is permutation, since order matters.  The formula for us is

₁₈P₅ = \frac{18!}{(18-5)!} which simplifies to

₁₈P₅ = \frac{18*17*16*15*14*13!}{13!}

The factorial of 13 cancels out on the top and bottom leaving you with

₁₈P₅ = 18 × 17 × 16 × 15 × 14

which comes to 1,028,160 ways

Another way to look at it is:  the first 5 people of 18 finish and the others you don't care about.  Once the first place person is first, there are only 4 of the 18 left to finish in second place.  Then there are only 3 left to finish in third place, etc.  So if we use that reasoning, we don't even need to use the formula, we can just say

18 * 17 * 16 * 15 * 14 and those are the first 5 people of 18 to finish.

8 0
3 years ago
What is the correct answer for -16 = -8(n - 6)
ser-zykov [4K]

Answer: n=8

Step-by-step explanation:

-8(n-6)=-16

-8n+48=-16

-8n=-64

n=8

3 0
3 years ago
Read 2 more answers
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