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VikaD [51]
2 years ago
15

1 point

Mathematics
1 answer:
Reika [66]2 years ago
3 0

Answer: 2x-y=15

Step-by-step explanation: can u be more detailin

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Rewrite \sqrt((1+cos45)/(2)) using a half-angle identity
aleksklad [387]

\stackrel{\textit{Half-Angle Identities}}{cos\left(\cfrac{\theta}{2}\right)=\pm \sqrt{\cfrac{1+cos(\theta)}{2}}} \\\\[-0.35em] ~\dotfill\\\\ \sqrt{\cfrac{1+cos(45^o)}{2}}~~ = ~~cos\left( \cfrac{45^o}{2} \right)\implies \sqrt{\cfrac{1+cos(45^o)}{2}}~~ = ~~cos(22.5^o)

7 0
2 years ago
Ashton made contributions to a Roth IRA over the course of 32 working years. His contributions averaged $2,400 annually. Ashton
enyata [817]
The formula of the future value of an annuity ordinary is
Fv=pmt [(1+r)^(n)-1)÷r]
Fv future value?
PMT 2400
R 0.08
T 32 years
Fv=2,400×((1+0.08)^(32)−1)÷(0.08)
Fv=322,112.49
Now deducte 28% the tax bracket from the amount we found
annual tax 2,400×0.28 =672 and tax over 32 years is 672×32 =21,504. So the effective value of Ashton's Roth IRA at retirement is 322,112.49−21,504=300,608.49
3 0
3 years ago
What is 92.3 times 4 to the power of ten
steposvetlana [31]

I am pretty sure your answer will be 96783564.8, but it may need to be rounded. If I am wrong, I am sorry.


Hope this helps~!

5 0
3 years ago
What is the answer? i dont get it
ArbitrLikvidat [17]
I believe it’s 2% if it’s wrong sorry
4 0
3 years ago
Jacob traveled 171 miles in 3.8 hours. He wants to know how many miles he traveled in one hour, so he set up this problem:
Makovka662 [10]

The answer is 45


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8 0
2 years ago
Read 2 more answers
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