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vlada-n [284]
3 years ago
14

What is the value of cos-1 (-√3/2​

Mathematics
1 answer:
melamori03 [73]3 years ago
7 0

Answer:

Step-by-step explanation:

This question is asking you "what angle gives you a cos of -square root 3/2"? The cosine by definition is the side adjacent to the angle over the hypotenuse.  So set up the right triangle.  We do not know which quadrant we are in since we are not told that, but if the cos is negative, then we are in either QII or QIII.  In QII this is a 150 degree angle, and in QIII this is a 210 degree angle.

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Y=-x^2+8<br> y= =3/4x– 3
Dmitrij [34]

Answer:

Yy8cgucucy8cc8yc8ygf7yy7 gdyrvdysrtu ui

8 0
2 years ago
Hey guys! Sorry to bother but I need help with these. 5th grade math, will give brainliest! (If you see multiple questions by me
Delicious77 [7]

Answer:

1/36 and 1/28

Step-by-step explanation:

i believe this is the answer as you should divide the denomonator by the answer as you cannot divide the numerator.

6 0
2 years ago
Big Bear Ski Resort offers two new “Snowboard Instruction” packages – Package A gives you 4 individual snowboard lessons for $15
sleet_krkn [62]

Answer:

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Step-by-step explanation:

3 0
4 years ago
Find which term in the geometric sequence 1,3,9,27,... is the first to exceed 7,000.
Zielflug [23.3K]

The common ratio between terms is 3, so the sequence has general n-th term

a_n=3^{n-1}

for n\ge1. The term exceeds 7000 when

3^{n-1}>7000\implies n-1>\log_37000\implies n>1+\log_37000\approx9.06

which means the first time a_n exceeds 7000 occurs when n=10. Indeed,

a_{10}=3^{10-1}=19,683

while the previous term would have been

a_9=3^{9-1}=6561

8 0
4 years ago
Solve for W: P=2L + 2W<br><br>A. W=P-L<br>B. W= 1/2P - L<br>C. W= 1/2 P + L<br>D. W= 2P - L​
svetlana [45]

Answer:

B

Step-by-step explanation:

P=2L+2W

P-2L=2W (Subtract 2L from both sides of the equation)

2W=P-2L (Symmetric Property of Equality)

W=\frac{P-2L}{2} (Divide both sides of the equation by 2)

W=\frac{P}{2} -\frac{2L}{2} ("Split" the fractions)

W=\frac{1}{2}P-L (Simplify)

Hope this helps!

4 0
3 years ago
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