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Andru [333]
3 years ago
12

NEED HELP PLEASE AHHH! A system of equations and it’s solution are given below

Mathematics
1 answer:
vfiekz [6]3 years ago
6 0
Just download the photomath app it will solve it for u !
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Find an equation of cosine function with maximum of 7, minimum of -7 and period of 7
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Answer:   \bold{y=7cos\bigg(\dfrac{2\pi}{7}x\bigg)}

<u>Step-by-step explanation:</u>

y = A cos (Bx - C) + D

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  • C/B = phase shift
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The minimum is -7 and the max is 7 so A = 7 and D = 0

Period is 7.  Since P = 2π/B then 7 = 2π/B --> B = 2π/7

Nothing was stated about a phase shift so you can use any value for C. I chose C = 0.

Now, input A = 7, B = 2π/7, C = 0, & D = 0 into the equation

y=7\cos\bigg(\dfrac{2\pi}{7}x-0\bigg)+0\\\\\\\text{Simplify}:\\y=7\cos\bigg(\dfrac{2\pi}{7}x\bigg)

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3 years ago
Use Pythagorean theorem to solve the following right triangles, put your answer in simplest radical form:
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3 years ago
Help<br> now please<br>ASAP<br>​
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To find the answer, you must first turn the fractions into decimals. 4 ÷ 5 = 0.8 ; 1 ÷ 2 = 0.5 ; 1 ÷ 10 = 0.1. Then you must subtract 0.5 from 0.8. Then add 0.1 to 0.3 .

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1). Write an equation for: The difference of a number p and -9 is 12.
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Answer:

The equation for the world problem is

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3 years ago
Read 2 more answers
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