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
Sonbull [250]
3 years ago
5

Solve x + x + 2 + 2x = -2.

Mathematics
1 answer:
lys-0071 [83]3 years ago
4 0

Answer:

-1

Step-by-step explanation:

x+x+2x=-2-2

4x=-4

x=-1

You might be interested in
32ax + 12bx - 48ay - 18by<br><br>factor the polynomial​
SashulF [63]

Answer:

(16a + 6b) (2x - 3y)      

Step-by-step explanation:

32ax + 12bx - 48ay - 18by

(32ax - 48ay) + (12bx - 18by)

16a(2x - 3y) + 6b(2x - 3y)         Factor out in both seperate expressions

(16a + 6b) (2x - 3y)                    Double factoring

4 0
3 years ago
Read 2 more answers
45% of $360 is what as a quantity
Bess [88]
I'm assuming you want to know what 45% of 360 is.....

so you multiply 360 by 0.45 (since 45 is a percent, and to revert it back, you must move the decimal 2 times to the left) and you have your answer...
5 0
3 years ago
On day two of a study on body temperatures, 106 temperatures were taken. Suppose that we only have the first 10 temperatures to
NemiM [27]

Answer:

The 95% confidence interval for the mean of all body temperatures is between 97.76 ºF and 99.12 ºF

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 10 - 1 = 9

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 9 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.2622

The margin of error is:

M = T*s = 2.2622*0.3 = 0.68

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 98.44 - 0.68 = 97.76 ºF

The upper end of the interval is the sample mean added to M. So it is 98.44 + 0.68 = 99.12 ºF

The 95% confidence interval for the mean of all body temperatures is between 97.76 ºF and 99.12 ºF

4 0
3 years ago
Mixed nuts sell for $7.89 a pound. Leticia fills a bag and weighs it. The bag weighs 2.3 pounds.
Maurinko [17]

Answer:

i think the answer is 18.15

Step-by-step explanation:

8 0
3 years ago
If the nth term of a sequence is 10n what is the 12th term
Lisa [10]

Answer:

10th term is 120.555

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Two particles are fixed to an x axis: particle 1 of charge -1.00 x 10-7 C is at the origin and particle 2 of charge +1.00 x 10-7
    12·1 answer
  • 11 more than five of a certain number is twenty more than 2 times of that number. What is the number
    13·1 answer
  • The library has thirteen
    8·1 answer
  • Please help on this will reward brainlest
    13·1 answer
  • If your front lawn is 24.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1050 new snow flakes every min
    8·1 answer
  • A coffee shop offers 14 different types of flavor shots. If customer can choose any number of flavor shots to have in their coff
    11·1 answer
  • Question 4 of 10
    6·1 answer
  • You have 96 grams of a radioactive kind of vanadium. How much will be left after 32 days if it’s half life is 16 days?
    15·1 answer
  • 7. Find the arc length. Leave your answer in terms of r.<br> 14 cm<br> 45°
    9·1 answer
  • What is the range of the graph
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!