1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna [14]
2 years ago
13

E=3.8cos(110πt). Determine the period.

Mathematics
1 answer:
kotykmax [81]2 years ago
6 0

Check the picture below.

f(t)=3.8\cos(\stackrel{B}{110\pi } t)~\hfill \stackrel{\textit{\Large Period}}{\cfrac{2\pi }{110\pi }\implies \cfrac{1}{55}}

You might be interested in
The ratio of the measure of two complementary angles is 4:5. what are the measures of the angles?the ratio of the measure of two
daser333 [38]
Ratio of 2 complementary angles = 4:5
Let first angle be 4x
Let second angle be 5x
Sum of two complementary angles = 90
4x + 5x = 90
9x = 90
x = 90/9 = 10
First angle = 4x = 4*10 = 40
Second angle = 5x = 5*10 = 50
I hope it is helpful...

7 0
3 years ago
I need help with 8x+3-10=-2 (x-2)+3
astraxan [27]

0 ≠ 4. The equation is wrong, and has no true solution.

8x + 3 - 10x = -2(x - 2) + 3

<em><u>Distributive property.</u></em>

8x + 3 - 10x = -2x + 4 + 3

<em><u>Combine like terms.</u></em>

-2x + 3 = -2x + 7

<em><u>Cancel like terms.</u></em>

<em><u>Subtract 3 from both sides.</u></em>

0  ≠ 4

5 0
3 years ago
Review the proof of de Moivre’s theorem.
RideAnS [48]

Answer:

D

Step-by-step explanation:

Just took it.

5 0
3 years ago
What is the constant in the expression?
Tpy6a [65]
If your answer was d) 3.6 , then you are correct!
7 0
3 years ago
Solve the equation for y. Then find the value of Y for each value of X.
Hunter-Best [27]

Answer:

y=9-7x

If x= -1, y=16

If x= 0, y=9

If x=2, y= -5

Step-by-step explanation:

Because you are solving the equation for y, you want to have y by itself on one side. The only way to do that in this problem is by subtracting the 7x on both sides.

y+7x=9

-7x -7x ---> y=9-7x

The next part of the question says to find the value of Y for each value of X. Using the given X values, we plug them into the equation we just got in order to find Y.

y=9-7(-1) ----> y=16

y=9-7(0) ----> y=9

y=9-7(2) ----> y=-5

4 0
3 years ago
Read 2 more answers
Other questions:
  • help please ! we are reviewing for this state test and i forgot how to do this. due at 8:00 pm tonight
    10·1 answer
  • Determine The Square Root Of 10008?
    13·2 answers
  • What is the volume of a rectangular prism? 9 in by 3 in by 2 in
    13·2 answers
  • My question is that is 22.7 degrees colder than 96.5 degrees?
    5·2 answers
  • Complete the sentence. The midpoint between 2 and 10 is .
    11·1 answer
  • The diameter of a circle is 12 in. Find the circumference to the nearest tenth <br> please helppp
    5·1 answer
  • Work out the area of this shape
    8·1 answer
  • Calculate the product using partial products<br><br> 1. 14.9 x 100=
    7·2 answers
  • It is given that x2 - 6x + 14 = (x+p) +9 Find the value of p and q.​
    7·1 answer
  • Shane made a scale drawing of a hotel. A room in the hotel, which is 18 feet wide in real life, is 51 inches wide in the drawing
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!