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
ozzi
3 years ago
13

3.) Simplify the expression.

Mathematics
1 answer:
Bogdan [553]3 years ago
6 0

Answer:

Option C) -cosu is correct

Therefore the simplified expression is cos(u+\pi)=-cosu

Step-by-step explanation:

Given expression is cos(u+\pi)

To find the value of the given expression :

By using the formula cos(A+B)=cosAcosB-sinAsinB

Substitute A=u and B=\pi in the above formula we get

cos(u+\pi)=cosucos\pi-sinusin\pi

=cosu(-1)-sinu(0)  ( here cos\pi=-1 and sin\pi=0 )

=-cosu-0

=-cosu

cos(u+\pi)=-cosu

Therefore option C) -cosu is correct

Therefore the simplified expression is cos(u+\pi)=-cosu

You might be interested in
What is the absolute value of -5/8?
Gemiola [76]

well, -5/8 is -0.625.

the absolute value of -0.625 is 0.625.

and abs value of -5/8 is 5/8

7 0
3 years ago
Read 2 more answers
What is the slope of the line with points (3, 5) and (8, 2)?
OleMash [197]

The correct answer is <em><u>-0.6</u></em> which in fraction form is <u><em>-3/5</em></u>

Your answer is <u><em>C. -3/5</em></u>

5 0
3 years ago
Read 2 more answers
PLZZZZ HELP ME i give you the brainest
stiv31 [10]
1. 3x-6+2x+108+88=360
    5x=170
    x=34
2. figure B
3 0
3 years ago
I dont know how to do graphing pls help
yarga [219]

Answer:

Solution: (-1, -1)

Step-by-step explanation:

y=4x+2

y=-4/3x-2

Solve by graphing.

First, you need to plot the y-intercept.

y=4x+<u>2</u>

2 will be your y-intercept.

Next, you plot your slope.

y=<u>4x</u>+2

From your y-intercept, you will go up 4 and right one space, if you run out of space go down 4 and left 1.

Now repeat the same steps for the next one.

y=-4/3x<u>-2</u>

Plot your y-intercept.

y=<u>-4/3x</u>-2

because your slope is negative you will go down 4 and right 3, if you run out of room go up 4 and left 3.

Then draw connecting lines and wherever the lines intersect, that's going to be your solution. In this case, the solution is (-1, -1).

Hope this helps :)

4 0
3 years ago
Read 2 more answers
A customer wants to purchase a pair of shoes that cost $45 and the state sales tax is 7%.
Rasek [7]

Answer:

$22.84

Step-by-step explanation:

The tax is calculated by 0.075 * 21.25 = 1.59375 or $1.59. So the total bill is the cost of items purchased plus tax, which is $21.25 + $1.59 = $22.84.

3 0
3 years ago
Other questions:
  • How do I solve p/q=r/s
    11·1 answer
  • How many radii does a circle have I am pretty sure its two, but i am not 100% certain
    11·1 answer
  • Which of the following is equivalent to the expression below?
    9·1 answer
  • Tonya's grandma has two pieces of cloth. She wants to estimate how much longer one piece is than the other. She will estimate to
    12·1 answer
  • Can someone help me on this please
    15·2 answers
  • What is the length of segment AB?<br><br> A) 2<br> B)2.5<br> C) 5<br> D) 10
    5·1 answer
  • A=20<br> B=10<br> C=23<br> D=29.2
    7·1 answer
  • Answer pls is mathematically is due today in 1 m
    5·1 answer
  • A person gain sp of 4 lemons by selling 20 lemon find profit percentage?​
    12·1 answer
  • The length of a rectangle is four times its width.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!