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
34kurt
3 years ago
10

WILL GIVE BRAINLIEST!! Solve It & Show Work

Mathematics
1 answer:
solmaris [256]3 years ago
3 0

Step-by-step explanation:

6. -18x = 6+ 2= 8

x = 8/-18 = -4/9

7. 20x= -2+4 = 2

20x=2 x= 1/10

8. 8x - 4 = -2

8x= -2+4 = 2

x= 2/8= 1/4

9. -6x-8= -2

-6x= -2+ 8 =6

x= -1

10. -x-3 = -10

-x= -10+3= -7

x=7

hope it helps !!

You might be interested in
A) 3 in<br> b) 4 in <br> c) 5 in <br> d) 6 in <br><br><br> PLEASE HELP
Andrei [34K]

Answer:

I would say A

Step-by-step explanation:

8 0
3 years ago
What does scale factor mean?
mamaluj [8]
"A scale factor is a number which scales, or multiplies, some quantity. ... In the field of measurements, the scale factor of an instrument is sometimes referred to as sensitivity. The ratio of any two corresponding lengths in two similar geometric figures is also called a scale factor." (not my wording but i hope this helps)
4 0
3 years ago
a random sample of 510 high school students has a normal distribution. The sample mean average ACT exam score was 21 with a 3.2
34kurt

Answer:

CI = 21 ± 0.365

Step-by-step explanation:

The confidence interval is:

CI = x ± SE * CV

where x is the sample mean, SE is the standard error, and CV is the critical value (either t score or z score).

Here, x = 21.

The standard error for a sample mean is:

SE = σ / √n

SE = 3.2 / √510

SE = 0.142

The critical value is looked up in a table or found with a calculator.  But first, we must find the alpha level and the critical probability.

α = 1 - 0.99 = 0.01

p* = 1 - (α/2) = 1 - (0.01/2) = 0.995

Using a calculator or a z-score table:

P(x<z) = 0.995

z = 2.576

Therefore:

CI = 21 ± 0.142 × 2.576

CI = 21 ± 0.365

Round as needed.

8 0
3 years ago
− ( − ) = what is x
skelet666 [1.2K]

Answer:

There is no x the equation so there is really no answer for x

Step-by-step explanation:

5 0
2 years ago
The midpoint of sm is (5,-11). One endpoint is S(3,5). What are the coordinates of endpoint M?
Nitella [24]
The coordinates of the midpoint if the endpoints are (x₁,y₁) and (x₂,y₂):
(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})

One endpoint is (3,5), the midpoint is (5,-11). The other endpoint is (x,y).

\frac{3+x}{2}=5 \ \ \ \ \ \ \ \ |\times 2 \\&#10;3+x=10 \ \ \ \ \  |-3 \\&#10;x=7 \\ \\&#10;\frac{5+y}{2}=-11 \ \ \ \ \ |\times 2 \\&#10;5+y=-22 \ \ \  |-5 \\&#10;y=-27

The coordinates of endpoint M are (7,-27).
3 0
3 years ago
Other questions:
  • Order these numbers from least to greatest.<br> 1.4, 1.103, 1.1322, 1.13
    8·2 answers
  • Please help!! Rewrite the expression as the product of two binomials. What are the two binomials for the expression? x(x-8)-9(x-
    13·1 answer
  • [-14] + [5] please heeellllp
    8·2 answers
  • How many 1x1 unit cubes would equal the volume of the figure shown?
    5·1 answer
  • Estimake square root of 11. ?
    10·2 answers
  • Free 19 points because uneven number 8+2
    11·2 answers
  • Stacy is measuring milk to make pancake batter. The recipe calls for \dfrac{3}{4} 4 3 ​ start fraction, 3, divided by, 4, end fr
    15·1 answer
  • Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.
    13·1 answer
  • Siri is grocery shopping. She is buying macaroni. One box is 6 inches long, 1 inch wide and 9
    9·2 answers
  • Write a rule for the nth term of the geometric sequence for which a1=−6 and a5=−486
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!