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
liq [111]
2 years ago
11

Given that cos(x)=−0.65, what is cos(−x)

Mathematics
1 answer:
Tanzania [10]2 years ago
7 0

Step-by-step explanation:

Cos(-x) = cos(x)

Therefore, cos(-x)= -0.65

You might be interested in
How do you write 8.317 x10^6 in standard form
CaHeK987 [17]

Answer:

8.317 x 10^6 = 8,317,000

Step-by-step explanation:

You move the decimal over 6 places to the right because it's a positive number. If it were 10^-6 you would move the decimal over 6 places to the left.

5 0
3 years ago
Bernardo drives to work at an average speed of 50 miles per hour and returns along the same route at an average speed of 25 mile
-BARSIC- [3]
Bernardo travels the same distance at 25mph as he does at 50mph. However, since 25mph is only half of 50 mph, he must travel twice as long at 25mph. If you call the time he traveled 50mph "t", then 

<span>t+2t=3 </span>
<span>3t=3 </span>
<span>t=1 </span>

<span>This means he traveled 1 hour at 50mph. In this time, he traveled 50 miles. He traveled the same distance at 25mph, so his total distance was </span>

<span>50miles+50miles=100miles </span>

<span>so the round trip was 100 miles.</span>
6 0
3 years ago
I dont understand please help
DiKsa [7]

2 \frac{1}{2}+(-2\frac{1}{4})

This is equal to:

2\frac{1}{2}-2\frac{1}{4}

When you add a negative number, it turns into subtraction.

First, I would change it to mixed numbers:

\frac{5}{2}-\frac{9}{4}

Now, you need to change the denominators to make sure they are the same on both fractions. I changed the first fraction's denominator to 4 so they match. You can do this by multiplying the numerator by 2:

\frac{10}{4}-\frac{9}{4}

Now, you simply subtract:

10-9=1

1/4 is your answer.

I hope this helps :)

3 0
3 years ago
How many times does six go into forty-eight?
Marizza181 [45]
6 x 8 = 48, the answer is 8, just divide 48 by 6.
3 0
3 years ago
A polynomial has two terms.
alexira [117]
Not sure if that is the entire question, but yes, it does. Poly comes from the Greek polus or polloi meaning much or many.
3 0
3 years ago
Other questions:
  • Steph places a point on a coordinate plane at (3,-2). She wants to place another point across the x-axis, and it must be 7 units
    9·1 answer
  • What is the elapsed time between 1:35-6:00
    6·2 answers
  • How to solve: <img src="https://tex.z-dn.net/?f=log_%7B3%7D%20%28x%2B6%29%20%2B%20log_%7B3%7D%28x-6%29%20%3D%204" id="TexFormula
    12·1 answer
  • Oneta writes an algebraic expression with three terms. The y-term has a coefficient of -3, and the x-term has a coefficient of 1
    8·1 answer
  • 4. what is the equivalent degree measure for pi/6 radians?
    15·1 answer
  • 4. What is the mass of a truck if it produces a force of 14,000N while accelerating at a rate of
    13·1 answer
  • 1.5.2. You have a six-sided die that you roll once. Let Ri denote the event that the roll is i. Let Gj denote the event that the
    15·1 answer
  • It cost $2.50 to rent bowling shoes. Each game costs $2.25. You have $9.25. Write and solve an equation to find how many game x
    5·1 answer
  • HELP ME PLEASEEEEEEEEEE
    12·1 answer
  • What is the range of the function graphed below?<br> PLEASE HELP ASAP
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!