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Zolol [24]
3 years ago
6

Help!!!!!!!!! Please!!!!

Mathematics
1 answer:
Sedaia [141]3 years ago
6 0

your answer is letter A,

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What is the amplitude, period, and phase shift of f(x) = -4 sin(2x + π) - 5?
son4ous [18]
F(x) = -4sin(2x + π) - 5

<u>Amplitude</u>
A = -π

<u>Period</u>
<u>2π</u> = <u>2π</u> = π
 B      2

<u>Phase Shift</u>
<u>-C</u> = <u>-π</u> = ≈ 1.57<u>
</u> B      2<u>
</u>
3 0
2 years ago
Read 2 more answers
I need help with this problem
Arada [10]

Answer:

65.56°

Step-by-step explanation:

We know that if we take dot product of two vectors then it is equal to the product of magnitudes of the vectors and cosine of the angle between them

That is let p and q be any two vectors and A be the angle between them

So, p·q=|p|*|q|*cosA

⇒cosA=\frac{u.v}{|u||v|}

Given u=-8i-3j and v=-8i+8j

|u|=\sqrt{(-8)^{2}+ (-3)^{2}} =8.544

|v|=\sqrt{(-8)^{2}+ (8)^{2}} =11.3137

let A be angle before u and v

therefore, cosA=\frac{u.v}{|u||v|}=\frac{(-8)*(-8)+(-3)*(8)}{8.544*11.3137} =\frac{40}{96.664}

⇒A=arccos(\frac{40}{96.664} )=arccos(0.4138 )=65.56

Therefore angle between u and v is 65.56°

5 0
2 years ago
Please help me. I need to find what W is​
cluponka [151]

Answer:

9

Step-by-step explanation:

w+13-\frac{2w}{3}=16

w · \frac{3}{3} -\frac{2w}{3}+13=16

\frac{w}{3}+13=16

\frac{w}{3}=3

w=9

6 0
2 years ago
x varies jointly with the square of y and z. when y=6 and z=5, x=100. Then, what is x when y=8 and z=2?
djyliett [7]
X = k*y^2 * z
100 = 6^2*5*k,
k=0.555
x=0.555zy^2

x=o.555(8^2)(2)=71.1112.


Hope that helps!
8 0
3 years ago
What are square numbers
Degger [83]

Square numbers are numbers with an odd number of factors. For example, 1 and 4 are square numbers.

3 0
3 years ago
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