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
tekilochka [14]
3 years ago
12

Evaluate the expression when a=−2 and c=−8.

Mathematics
1 answer:
Andreyy893 years ago
8 0

Answer:

|(−2)2(−8)|

<em>=32</em>

Step-by-step explanation:

Hope this helps! <3

You might be interested in
Suppose that Upper X has a discrete uniform distribution f left-parenthesis x right-parenthesis equals StartLayout left-brace1st
emmasim [6.3K]

Answer:

the probability that the sample mean is greater than 2.1 but less than 2.4 is 0.2444

Step-by-step explanation:

Given the data in the question;

x        f(x)         xp(x)               x²p(x)

1         1/3        0.33333        0.33333

2        1/3        0.66667        1.33333

3        1/3        1.00000        3.0000

∑                    2.0000          4.6667

∑(xp(x)) = 2

∑(x²p(x)) = 4.6667

Variance σ² = ∑(x²) - ∑(x)² = 4.6667 - (2)² = 4.6667 - 4 = 0.6667

standard deviation σ = √variance = √0.6667 = 0.8165

Now since, n = 33 which is greater than 30, we can use normal approximation

for normal distribution z score ( x-μ)/σ

mean μ = 2

standard deviation = 0.817

sample size n = 33

standard of error σₓ = σ/√n = 0.817/√33 = 0.1422

so probability will be;

p( 2.1  < X < 2.4 ) = p(( 2.1-2)/0.1422) <  x"-μ/σₓ  <  p(( 2.4-2)/0.1422)

= 0.70 < Z < 2.81    

=  1 - ( 0.703 < Z < 2.812 )

FROM Z-SC0RE TABLE

=  1 - ( 0.25804 + 0.49752 )

= 1 - 0.75556

p( 2.1  < X < 2.4 ) = 0.2444

Therefore,  the probability that the sample mean is greater than 2.1 but less than 2.4 is 0.2444

7 0
3 years ago
What is the value of z?
katovenus [111]
Z=180º-(62º+95º)
Z=180º-157º
z=23º
7 0
3 years ago
Read 2 more answers
9(-6+4h). Help me please
sertanlavr [38]

Answer:

-54+36h

Step-by-step explanation:

4 0
3 years ago
Which is f(-3) for the quadratic function graphed?<br> -9<br> -3<br> 0<br> 9
KATRIN_1 [288]

Answer:

9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Michael sold 23 of his CDs and purchased 16 more.
aleksley [76]
25-16=9
9+23=32
He had 32 CDs to begin with
6 0
3 years ago
Other questions:
  • I'm a bit confused On this question so I'll take any help
    11·1 answer
  • What is this answer anyone
    11·2 answers
  • Find the vertex of the parabola.<br> F(x) = 5x^2 - 30x +49
    15·1 answer
  • Help please, this is due a 10 AM!!!
    11·1 answer
  • Will give brainliest if you awnser all math questions
    11·1 answer
  • (c2−4c+7) -(7c2−5c+3).
    13·1 answer
  • Valeria and Christina both want to run for class president. In order to appear on the ballot,
    10·1 answer
  • Help !!! Which formula can be used to describe the sequence
    12·1 answer
  • What is 16/1 x 3/1?...
    9·1 answer
  • Are the graphs of y= 1/3x-4 and y-2=-3(x-4) parallel, perpendicular, or neither
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!