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Anna007 [38]
2 years ago
5

Find the value of cos[cos^-1(sqrt 2/2)-n/2]

Mathematics
2 answers:
Dmitrij [34]2 years ago
8 0

Answer:

I highly think it's D. \frac{\sqrt{2} }{2}

Step-by-step explanation:

SCORPION-xisa [38]2 years ago
4 0

Answer:

Closest choice would be D.

Step-by-step explanation:

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A hot air balloon travels 18miles in 3 hours. At this rate how many miles will the hot air balloon travel in 3/4hour?
Nikolay [14]

Answer:

4,5 miles

Step-by-step explanation:

In 1 hour:    18/3 = 6 miles

6 . 3/4 = 18/4 = 4,5 miles

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3 years ago
A coin weighs 5/6 ounces. Ann picked up 3 of these coins.
JulsSmile [24]
How I’d do it:
5/6 three times makes 15/6. Made into a mixed fraction is 2 3/6, which in its simplest form is 2 1/2.
When converted to ounces, assuming that 6/6 is one complete ounce, then you get 2.5 ounces.
The total weight she picked up is 2.5 ounces.
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on what shelf of the school library one half of the books are about sports Josie sees that 3/4 of the sports books are about bas
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3/8 of the books are basketball books
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3 years ago
Mrs. Harrison borrows $600 to pay for a new phone. The simple interest on the loan is 9% for one year.
Lelu [443]

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$654

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6 0
3 years ago
Read 2 more answers
Value of x 9(2x-1)-9x - 18
bixtya [17]
Let's simplify step-by-step.<span><span><span>9<span>(<span><span>2x</span>−1</span>)</span></span>−<span>9x</span></span>−<span>18

</span></span>Distribute:<span>=<span><span><span><span><span><span><span>(9)</span><span>(<span>2x</span>)</span></span>+<span><span>(9)</span><span>(<span>−1</span>)</span></span></span>+</span>−<span>9x</span></span>+</span>−18</span></span><span>=<span><span><span><span><span><span><span>18x</span>+</span>−9</span>+</span>−<span>9x</span></span>+</span>−<span>18

</span></span></span>Combine Like Terms:<span>=<span><span><span><span>18x</span>+<span>−9</span></span>+<span>−<span>9x</span></span></span>+<span>−18</span></span></span><span>=<span><span>(<span><span>18x</span>+<span>−<span>9x</span></span></span>)</span>+<span>(<span><span>−9</span>+<span>−18</span></span>)</span></span></span><span>=<span><span>9x</span>+<span>−<span>27

</span></span></span></span>Answer:<span>=<span><span>9x</span>−<span>27</span></span></span>
5 0
3 years ago
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