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
svet-max [94.6K]
3 years ago
8

Which number represents the solutions to |-2x|=4

Mathematics
1 answer:
posledela3 years ago
3 0

Answer:

2

Step-by-step explanation:

Since there is nothing to solve in the absolute value, take them away and make -2x just 2x. To get x by itself, divide both sides by 2 to get x=2

You might be interested in
1/1,000,000 grams = 1 what
Troyanec [42]

Answer:

It can equal anything.. You need to find a unit to convert it to.. Such as feet, or meters.

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
7x-3x=<br> what is x =<br> x=
Zielflug [23.3K]

Answer:

4x

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Show how you would calculate the unit price of each item
ANTONII [103]

Answer:

divide the total quantity by number of quantity

6 0
3 years ago
Consider a drug testing company that provides a test for marijuana usage. Among 310 tested​ subjects, results from 28 subjects w
Naily [24]

Answer:

z=\frac{0.0903 -0.1}{\sqrt{\frac{0.1(1-0.1)}{310}}}=-0.569  

The p value for this case can be calculated with this probability:

p_v =P(z  

Since the p value is higher than significance level we don't have enough evidence to conclude that the true proportion is significantly less than 0.1

Step-by-step explanation:

Information given

n=310 represent th sample selected

X=28 represent the subjects wrong

\hat p=\frac{28}{310}=0.0903 estimated proportion of subjects wrong

p_o=0.1 is the value to verify

\alpha=0.05 represent the significance level

t would represent the statistic

p_v represent the p value

System of hypothesis

We want to test the claim that less than 10 percent of the test results are wrong ,and the hypothesis are:  

Null hypothesis:p\geq 0.1  

Alternative hypothesis:p < 0.1  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info we got:

z=\frac{0.0903 -0.1}{\sqrt{\frac{0.1(1-0.1)}{310}}}=-0.569  

The p value for this case can be calculated with this probability:

p_v =P(z  

Since the p value is higher than significance level we don't have enough evidence to conclude that the true proportion is significantly less than 0.1

5 0
4 years ago
Rule: y=x+3<br><br> HELPpppppp
dimaraw [331]

Answer:

Step-by-step explanation:

when y=4

x=4-3=1

when y=8

x=8-3=5

when y=5

x=5-3=2

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the tax on a shirt that cost $12.00 if the tax is 6.25%
    12·2 answers
  • When working overtime, an auto mechanic gets paid 1.5 times the normal hourly wage. Overtime is the amount of time worked beyond
    15·1 answer
  • Which is the graph of the function y=-4x?
    5·2 answers
  • HELP PLEASE!!! 50 PTS
    10·2 answers
  • 12 less than the quotient of 12 and a number x
    12·1 answer
  • 2x2 - 9x + 5 = 0<br> quadratic formula
    15·1 answer
  • Who is getting the points???? ( UR SO MF*. CKING SMART IF U KNOW THISSS )
    12·1 answer
  • A rectangle desktop has a length of 3(x+2) units and a width of (x-7). Write an expression for the area
    11·1 answer
  • 1..Simplify the expression 6−2x+5+4x. Hint: Your final expression should only have two terms.
    6·2 answers
  • What is the best definition for parabola?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!