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allsm [11]
3 years ago
14

Solve the system of equations using the elimination method 2x + 9y = -40

Mathematics
1 answer:
Ber [7]3 years ago
7 0
Wait like find the variables number ?
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(co<br> Write a cosine function that has an amplitude of 2, a midline of 5 and a period of 8.
tatyana61 [14]

Answer:

<em>y=2 cos (π/4x-π/4)</em>

Step-by-step explanation:

<em>Given</em>

<em>A cosine function has an amplitude of 2, a midline of 5 and a period of 8.</em>

<em>To find: </em>

<em>A cosine function.</em>

<em>Explanation:</em>

<em>Let the function be,</em>

<em></em>y=Acos(ws+p)

<em>Since amplitude is 2.</em>

<em>Then,</em>

<em></em>A=2

<em>Also, since the period is 8.</em>

<em>Then,</em>

<em></em>w=\frac{2\pi }{8}

w=\frac{\pi }{4}

<em>And, since midline is 5.</em>

<em>Hence, the cosine function is,</em>

<em>y=2 cos (</em>\frac{\pi }{4}<em>x-</em>\frac{\pi }{4}

<em></em>

6 0
2 years ago
How do i determine if lines are parallel, perpendicular or neither?<br><br> -3y=5x-1<br> 6x=10y-12
zimovet [89]
Nether . I think it's nether
4 0
4 years ago
I need for that questions ?
matrenka [14]
Im unable to send the equation

8 0
4 years ago
Find the value of x ​
tiny-mole [99]

Answer:

x = 150

Step-by-step explanation:

What we need to do is first use the sum of interior angles theorem to find the total sum of this odd hexagon.

n = sides of the shape.

(n-2)*180° = Sum of interior angles

For us this would be 720° total. Now make an equation

121 + 96 + 101 +162 + 90 + x = 720

Then we simplify

570 + x = 720

-570         -570

And then subtract 570 on both sides and we get our answer.

x = 150

4 0
3 years ago
Read 2 more answers
Help asap! question in pic! will give brainliest
Andre45 [30]

Answer:

the first one

Step-by-step explanation:

simplify. I'm too lazy to type out the work if you rly need it then ig I could tho

4 0
3 years ago
Read 2 more answers
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