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
Shalnov [3]
3 years ago
8

Help this should be simple ​

Mathematics
1 answer:
iragen [17]3 years ago
7 0
Answer: I believe it’s D
You might be interested in
Which two values of x satisfy the equation square root 3-2cos x = 2?
Andrei [34K]

Answer: x=2π/3 and x=4π/3

Step-by-step explanation:

The equation we have is \sqrt{3-2cosx} =2. All we have to do is get cosine alone to find the 2 values of x.

3-2cosx=4\\-2cosx=1\\cosx=-\frac{1}{2}

Now that we have our cosine left, we can use our unit circle to figure out when does cosx=-1/2. Cosine is the x value of the coordinate.

x=2π/3

x=4π/3

8 0
3 years ago
Using the slope and the yintercept, graph the line represented by the following equation. Then select the correct graph. 2y+4=0
aleksklad [387]
Slope is 0 and the y intercept is -2
3 0
3 years ago
The Area of a square at right is 72 square units Find the value of X, <br>Did I do this right?
Assoli18 [71]
Yes, your work is correct.

The diagram does illustrate x²+6x+9=72.  This is also represented by

(x+3)² = 72

We can take the square root of both sides:
\sqrt{(x+3)^2}=\sqrt{72}&#10;\\&#10;\\x+3=\pm 6 \sqrt2&#10;\\&#10;\\x+3-3=\pm 6 \sqrt{2} -3&#10;\\&#10;\\x=-3\pm 6\sqrt{2}

When we evaluate this, the answers are x = -11.5 or x = 5.5.
5 0
3 years ago
Isaac is working as a security guard. He earns $8.45 an hour. He earns double time for any overtime over 40 hours. Last week he
andreev551 [17]

Answer:

$405.60

Step-by-step explanation:

If Isaac works for 40 hours will earn $8.45×40=$388. Since he worked 4 extra hours, he will earn $8.45×2×4 since he worked 4 extra hours. $8.45×2=$16.90, which is the amount he earns for every extra hour he works. $16.90×4=$67.60. Now if we add $67.60+$388=$405.60.

Hope this helps!

6 0
3 years ago
If M is the midpoint of LN and LN =27.8 , find the length of MN . A) 13.8 B) 13.9 C ) 14.2 D) 14.5
dimulka [17.4K]
The answer is B. 13.9. Since M is the midpoint, it splits the line into 2 equal parts.
27.8 / 2 = 13.9
5 0
3 years ago
Read 2 more answers
Other questions:
  • Every day at noon, a bus leaves for townville and travels at a speed of x kilometers per hour. today, the bus left 30 minutes la
    15·1 answer
  • Slope intercept form write an equation
    6·2 answers
  • How can you solve an equation or inequality in one variable?
    8·1 answer
  • Ten minus five and two thirds
    13·1 answer
  • It takes 45 minutes for 4 people to paint 5 walls . How many minutes does it take 6 people to paint 4 walls?
    9·2 answers
  • On 1st September 2014 there were 5400 trees planted in a wood.
    13·1 answer
  • What is the value of n
    8·1 answer
  • What best describes the relationship between consecutive exterior angles?
    8·1 answer
  • Evelyn swimming pool requires 3 quarts of a bacterial cleaning agent five times a month how many gallons of this agent will Evel
    11·1 answer
  • a student needs to fill a tank with 9 liters of waters how many 1/3 liters of water will it take to fill the tank
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!