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Sergio039 [100]
2 years ago
5

Write a cosine function that has a midline of 2, an amplitude of 4 and a period of pi/2.

Mathematics
1 answer:
exis [7]2 years ago
4 0

y = Acos(Bx) + D;

D = 4, A = 2. Now T = 2π/B = 5π/8, B = 2π/(5π/8) = 16/5

WE get y = 2cos(16/5x) + 4

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I need an answer to this
Ulleksa [173]

Answer:

x=3

Step-by-step explanation:

x+1*5=20

x*5=15

15/5=3

Hope this helps! :)

4 0
3 years ago
Help pleaseee due tonight :(
Serggg [28]

Answer:

x=3

Step-by-step explanation:

substitute into the equation

5 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLEIST NEED TO TURN IN BY 9 P.M. PLS HURRY SUPER EASY.
Lady_Fox [76]

Answer:

Always true because there are no other options that allow the equations to be true

Step-by-step explanation:

a+4=8

subtract 4

a=4

4-m=2

add m

4=2+m

subtract 2

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3 0
3 years ago
M∠a=(48−x)°m∠b=(9x−38)°m∠c=90°
Fudgin [204]

Answer:

Option C:

  • m∠a = 38°
  • m∠b = 52°
  • m∠c = 90°

Step-by-step explanation:

Hello!

The sum of all angles in a triangle is 180°.

Add up all the angles and solve for x by setting the equation to 180°.

<h3>Solve for x</h3>
  • ∠a + ∠b + ∠c = 180°
  • (48 - x)° + (9x - 38)° + 90° = 180°
  • 10° + 8x + 90° = 180°
  • 8x = 180° - 90° - 10°
  • 8x = 80°
  • x = 10°

Now that we solved for x, we can plug it back into each equation to solve for each angle.

<h3>Angle A</h3>
  • 48° - x
  • 48° - 10°
  • 38°
<h3>Angle B</h3>
  • 9x - 38°
  • 9(10°) - 38°
  • 90° - 38°
  • 52°
<h3>Angle C</h3>
  • 90°

The answer is Option C:

  • m∠a = 38°
  • m∠b = 52°
  • m∠c = 90°
4 0
2 years ago
What is the coefficient of the term of degree 8 in the polynomial below?
Nesterboy [21]
The correct answer is:  [D]:  "5 (five)" .
______________________________________________________
<u>Note</u>:  The term of "degree 8" is the term with a variable with 
           an exponent of "8" ;  which in this case is " + 5x⁸ ".

The "coefficient" is  "5" (five).
______________________________________________________
5 0
3 years ago
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