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saveliy_v [14]
3 years ago
10

Please help!! I have no idea!!

Mathematics
1 answer:
MAXImum [283]3 years ago
4 0
If sinα=cosß  it means that ß=90-α.  This also means that α+ß=90 so we can say:

4k-22+6k-13=90

10k-35=90

10k=125

k=12.5°

...

The above identity comes up a lot, and is one worth committing to memory for sure.

sinα=cos(90-α) or vice versa cosα=sin(90-α)
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F(x)3x+5/x what is f(a+2)
Natalija [7]
F(X) = (3x + 5)/X
F(a + 2) = (3(a + 2) + 5)/(a + 2)
F(a + 2) = (3a + 6 + 5)/(a+2)
F(a + 2) = (3a + 11)/(a + 2).

This would be the final solution.
4 0
3 years ago
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What is the volume of the cylinder shown below?
seraphim [82]

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2 years ago
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Shayla has 6 1/2 pounds of potato salad into containers each of which holds 1 5/8 pounds. How many containers does she need?
Oksi-84 [34.3K]

let's firstly convert the mixed fractions to improper fractions and then divide.

\bf \stackrel{mixed}{6\frac{1}{2}}\implies \cfrac{6\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{13}{2}}~\hfill \stackrel{mixed}{1\frac{5}{8}\implies \cfrac{1\cdot 8+5}{8}}\implies \stackrel{improper}{\cfrac{13}{8}} \\\\[-0.35em] ~\dotfill

\bf \stackrel{\textit{total salad}}{\cfrac{13}{2}}\div \stackrel{\stackrel{\textit{conainer's}}{\textit{capacity}}}{\cfrac{13}{8}}\implies \cfrac{\begin{matrix} 13 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}}{\underset{1}{\begin{matrix} 2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}}}\cdot \cfrac{\stackrel{4}{\begin{matrix} 8 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}}}{\begin{matrix} 13 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}}\implies 4

6 0
3 years ago
Please help 10 points 1 question
gregori [183]

Answer:

ty for point have a nice day po

4 0
3 years ago
Last year, a large trucking company delivered 5.5*10^5 tons of goods with an average value of $23,000 per ton. What was the tota
Mademuasel [1]
It would be: 5.5 * 10⁵ * 23000
= 5.5 * 10⁵ * 2.3 * 10⁴
= 12.65 * 10⁹
= 1.265 * 10¹⁰

In short, Your Answer would be Option B

Hope this helps!
8 0
3 years ago
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