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
blsea [12.9K]
3 years ago
12

Analysis of the voltage in certain types of circuits involves terms of the form sin(nw^0t-90 degrees) where n is a positive inte

ger, w0 is the frequency of the voltage, and t is time. Use an identity to simplify this expression.
A.cscnw0t
B.-cscnw0t
C.cosnw0t
D.-cosnw0t

Mathematics
2 answers:
Leona [35]3 years ago
8 0

Answer:

d

Step-by-step explanation:

mel-nik [20]3 years ago
5 0

Answer:

  D.  -cos(nw0t)

Step-by-step explanation:

Subtracting 90° from the argument of the sine function shifts its graph 90° to the right, putting the negative peak on the y-axis. That corresponds to the negative cosine function, choice D.

You might be interested in
Jim wanted to find out what the audience thought about the debate. After the event, Jim stood at the exit to survey every fifth
balu736 [363]

Answer: D. This was a random sample. It may have included anyone in attendance.

Step-by-step explanation:

The options are:

A. This was a biased sample. Jim should interview all in attendance.

B. This was a census. Any guest may have participated.

C. This was a random sample. It may not have included anyone in attendance.

D. This was a random sample. It may have included anyone in attendance.

A random sampling is simply referred to as a subset of individuals that are picked from a larger set of individuals.

With regards to the question, Jim wanted to find out what the audience thought about the debate and after the event, he stood at the exit to survey every fifth guest.

This means that it was a random sampling and anyone could have been picked, the sampling wasn't bias.

7 0
2 years ago
Pls help due ASAP <br> Show workings pls
kobusy [5.1K]
The answer is c
you (4,4) and another point need to be double (2,-5) so the other point needs to add to (4,-10) so 4 + 0 is 4 and 4 + - 14 = 10
4 0
3 years ago
Please help and thank you
Scilla [17]

The answer is B.

Hope this helps!

6 0
2 years ago
Find the slope of the line that passes through (6, 8) and (2, 17).
Inga [223]

Answer:

-9/4

Step-by-step explanation:

Slope is equal to the change in y, over the change in x, or rise over run.

x, is the run

y, is the rise

You can substitute the coordinate numbers on the equation to find the slope. which is y2-y1/x2-x1

m= 17-(8)

——

2-(6)

Your answer will be -9/4 (it doesn’t matter where the negative goes, and there’s a negative because 2-6= -4)

Hope this helps.

8 0
2 years ago
Which numbers belong to the solution set of the inequality? check all that apply. x+10&lt;50
Lelechka [254]

THE CORRECT SOLUTION WOULD BE THE LISTED LETTERS. B. , F.

4 0
3 years ago
Other questions:
  • If 2 pounds of strawberry cost 4$50 how much would 3 pound cost
    14·1 answer
  • HELP ME THANKS ;) for number 1 through 11 QUICKLY
    7·1 answer
  • Determine whether the quadratic equation has two unequal real number solutions, two equal real number solutions, or two complex
    10·1 answer
  • The formula for the area of a circle is A = πr2, where A = area and r = radius.
    8·1 answer
  • 1.--2.4.-8. What is the sequence?
    9·1 answer
  • Sue purchased a $30,000 life insurance policy at the price of $24 for each $1000 of coverage. If she pays the premium in 12 mont
    10·1 answer
  • I need help please?!!!
    12·1 answer
  • A tile floor is made of square tiles. Each tile is 1.5 feet on each side. If the floor has 54 blocks in it what is the total are
    8·1 answer
  • A cylinder and a cone have the same diameter: 8 inches. The height of the cylinder is 3 inches. The height of the cone is 18 inc
    11·1 answer
  • What is the slope of the line passing through the points (1, 2) and (5, 4)? A .−2 B.12 C.1 D.2
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!