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Digiron [165]
1 year ago
13

Solve 2tan(x)cos^2(x)=1 algebraically

Mathematics
1 answer:
deff fn [24]1 year ago
7 0
X= pi/4 +k(pi)
(This may not be correct sorry)
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If you get this right i’ll give u the brainliest answer
Ivanshal [37]

b equals 0 I looked it up have a good day

8 0
2 years ago
What is the answer to this?​
kherson [118]

s = standard version amount

h = high quality version amount

we know that there were 1090 downloads of the song, meaning s + h = 1090.

we also know that the total amount of MBs downloaded was 3353 MBs, and since the standard is 2.1 MBs and the high quality is 4.9MBs, then 2.1s + 4.9h = 3353.

\begin{cases} s+h=1090\\ 2.1s + 4.9h = 3353\\[-0.5em] \hrulefill\\ h = 1090 - s \end{cases}\qquad \stackrel{\textit{substituting on the 2nd equation}}{2.1s+4.9(1090-s) = 3353} \\\\\\ 2.1s + 5341 - 4.9s = 3353\implies -2.8s + 5341 = 3353 \\\\\\ -2.8s=-1988\implies s = \cfrac{-1988}{-2.8}\implies \boxed{s = 710}

7 0
2 years ago
In a certain card game you draw one card off a standard deck of 52 cards. If you draw a spade you get paid $12, if you draw a re
Mariulka [41]

Step-by-step explanation:

In a standard deck of 52 cards, there are 2 red aces, 2 red Queens, and 13 spades.  That leaves 35 cards for everything else.

For the game to be fair, the cost must equal the expected value.  The expected value is the sum of each outcome times its probability.

C = (12) (13/52) + (20) (2/52) + (38) (2/52) + (0) (35/52)

C = 68/13

C ≈ 5.2308

4 0
2 years ago
Parallel lines m and n are cut by a transversal. At the intersection of line m with the transversal, the uppercase left angle is
laiz [17]

Answer:

40

Step-by-step explanation:

edg2020

7 0
3 years ago
Which set of ordered pairs ***represents*** a function?
aev [14]

Answer:

D

Step-by-step explanation:

the rest of them have 2 Y for 1 X

6 0
2 years ago
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