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SVETLANKA909090 [29]
3 years ago
6

Help with math here are photos

Mathematics
1 answer:
Vadim26 [7]3 years ago
5 0

Answer:

Step-by-step explanation:

This was 4 days ago let me guess missing assignments

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Shows that n+1Cn= mCn-1 + mCn
ArbitrLikvidat [17]

Answer:

I think the Question is incorrect; the left hand side of the equation should be

m+1Cn

Step-by-step explanation:

4 0
3 years ago
The expression cosine of pi over 2 times cosine of pi over 3 plus sine of pi over 2 times sine of pi over 3 can be rewritten as
9966 [12]

Solution:

Given;

\cos\frac{\pi}{2}\cos\frac{\pi}{3}+\sin\frac{\pi}{2}\sin\frac{\pi}{3}

Using the identities;

Thus;

\begin{gathered} \cos\frac{\pi}{2}\cos\frac{\pi}{3}+\sin\frac{\pi}{2}\sin\frac{\pi}{3}=\cos(\frac{\pi}{2}-\frac{\pi}{3}) \\  \\ \cos\frac{\pi}{2}\cos\frac{\pi}{3}+\sin\frac{\pi}{2}\sin\frac{\pi}{3}=\cos(\frac{\pi}{6}) \end{gathered}

CORRECT OPTION: A

6 0
1 year ago
FREE POINTS AND MYBE A BRAINLIEST JUST ONE QUESTION ARE YOU TIRED OF ASKING SONE QUESTIONS NO ONE ANSWERS AND THEN YOU CAN'T GET
natka813 [3]

Answer:

Yes totally friend, I totally hear you on that!! ^-^ Good luck for your weekend!!!

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Miguel can use all or part of his $25 gift card to make a music purchase.Each song costs $1.50, and there is a $1.00 per account
erastova [34]

Answer:

1.5m + 1 ≤ 25

Step-by-step explanation:

Given:

Total amount of gift card Miguel have = $25

Cost of each song = $1.50

Account activation fee = $1

Find:

Inequality

Computation:

Assume;

Number of song Miguel have = m

So,

Total amount of gift card Miguel have ≥ (Cost of each song)(Number of song Miguel have) + Account activation fee

1.5m + 1 ≤ 25

4 0
3 years ago
Need help asap will make you the brainiest
Mashutka [201]
A is the answer sorry if I’m wrong
6 0
2 years ago
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