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
jolli1 [7]
3 years ago
12

Evaluate -2 - (-4) -2

Mathematics
2 answers:
GenaCL600 [577]3 years ago
6 0
The answer for this question is 0
Diano4ka-milaya [45]3 years ago
5 0

Answer:

0

Step-by-step explanation:

-(-4) cancels out to be positive 4. So -2+-2+4= -4+4, which is equivalent to 0

You might be interested in
4.48 Same observation, difference sample size: Suppose you conduct a hypothesis test based on a sample where the sample size is
Lemur [1.5K]

Answer:

P-value is lesser in the case when n = 500.

Step-by-step explanation:

The formula for z-test statistic can be written as

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n} } } =\frac{(x-\mu)\sqrt{n}}{\sigma}

here, μ = mean

σ= standard deviation, n= sample size, x= variable.

From the relation we can clearly observe that n is directly proportional to test statistic. Thus, as the value of n increases the corresponding test statistic value also increases.

We can also observe that as the test statistic's numerical value increases it is more likely to go into rejection region or in other words its P-value decreases.

Now, for  first case when our n is 50 we will have a relatively low chance of accurately representing the population compared to the case when n= 500. Therefore,  the P-value will be lesser in the case when n = 500.

6 0
3 years ago
Determine the slope of the line that passes through each pair of points. A(2, 3), B(1, 5)
Tema [17]

Answer:

The slope is 2

Step-by-step explanation:

The formula to find slope is y2-y1/x2-x1

Plug in the numbers and you get: 5-3/1-2

The result of that is -2/-1 which can be simplified to 2

7 0
3 years ago
A square has sides of 3x and 5x - 16. What is the value of x.
Ira Lisetskai [31]

Answer:

8

Step-by-step explanation:

as side of square are equal

3x=5x-16

3x+16=5x

16=5x-3x

16=2x

16÷2=x

8=x

therefore value of x is 8

3 0
3 years ago
Read 2 more answers
Three copies of a triangle were rotated and positioned as shown.
lara31 [8.8K]
<span>The question aks us to determine which statement is always true about the angles in the figure. If angle A and B form a right angle, then C must be also a right angle, which is not correct. Also if A and C form a right angle, then angle B must be a right angle. So answers A and C are false. Also thet we know that the sum of the interior angles of the triangle is 180 degrees. A + B + C = 180 deg. ( or a straight angle ). Answer: B. Angle A, angle B, and angle C, form a straight angle. </span>
4 0
3 years ago
Hey please Solve for x.
UNO [17]

Answer:

8 i think hope this helps

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • How high would a 2 story building be?
    11·2 answers
  • There are two cookie jars: jar 1 contains two chocolate chip cookies and three plain cookies, and jar 2 contains one chocolate c
    8·1 answer
  • What is the sum for 10,000 + 2,000 + 60 + 1​
    9·2 answers
  • Aaron can run 4 miles in 30 minutes. How long does it take him to run one mile
    11·2 answers
  • PLEASE HELP!!! ASAP!!! Write the correct comparison symbol ( &lt;, &gt;).
    8·1 answer
  • OK SOMEONE PLEASE HELP ME WITH THIS MATH. IT HAS TO DO WITH THE pythagorean theorem. SOMEONE PLEASE PLEASE PLEASEE
    15·1 answer
  • These marbles are placed in a bag and two
    7·1 answer
  • I need the slope -intercept form
    10·1 answer
  • How does your model represent the problem?
    12·1 answer
  • Line a goes through the points (- 3, 4) and (1, 2) . Line b goes through the point (6, 2) and (8, 1) . Are lines a and b paralle
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!