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MariettaO [177]
3 years ago
12

Need help with this asap………

Mathematics
1 answer:
Iteru [2.4K]3 years ago
8 0

Answer:

y= 32

Step-by-step explanation:

HOPE THIS HELPS :)

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Q#3. if cos x = sqrt(2)/2, and 3pi/2 < x < 2pi, what is sin(x + pi/3)
garri49 [273]

#3 sin(x) = -sqrt(2)/2 so x = 315 degrees. So we have sin(x+pi/3) = sin(375) = sin(15) which in exact form would be (sqrt(3) -1)/(2sqrt(2))


#4 to find x we take the arctan(20/21) which is approximately 43.6 degrees and add 180 to it since it's in the 3rd quadrant which is 223.6 degrees so we do sin(223.6 + 90) = sin(313.6) which equals -21/29. This can also be done with the pythagorean theorem. -21/29.


#5 13^2 - 5^2 = 12^2. so sin is -12/-13 = 12/13. we take arcsin of that and add 180 and then divide by 2 and take the sin of that and its approximately 3/sqrt(13).


#6 sin is 4/5 so we take arcsin of that and get 143.13 which -60 is 83.13 and we take the sin of that to get 3/10 + 2sqrt(3)/5


Hope this helped :L

5 0
3 years ago
(X^-4)(x^10)=x^p<br><br> Help:(
kkurt [141]

Answer:

Step-by-step explanation:

(x^{-4})*(x^{10})=x^{p}\\\\x^{-4+10}=x^{p}\\\\x^{6}=x^{p}\\

Compare the powers, p = 6

6 0
3 years ago
it takes 3 buckets of water to fill one third of a fish tank how many buckets are needed to fill whole tank
____ [38]
9 buckets of water because If 1/3 is 3 than you just add 6 more buckets which is 9
7 0
3 years ago
Read 2 more answers
What values make the inequality v&lt;4 true.
VLD [36.1K]

Answer:

all except "4" "4.001"  "4.1" "4.01" "5" "7" "9" "12"

Step-by-step explanation:

4 is exculded because its u<4 not u<=4

have a good day !

6 0
3 years ago
Evaluate the determinant
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D. negative 67 because laplace’s expansion
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2 years ago
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