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Alexeev081 [22]
3 years ago
7

Given f(x) = x cubed - 3, find f(-2)

Mathematics
1 answer:
Greeley [361]3 years ago
6 0

Answer:

f(-2) = -11

Step-by-step explanation:

f(x) =x^(3)-3

We want to find f(-2) , which means x=-2

f(-2) = (-2) ^3-3

(-2)^3 = -8

f(-2) = (-8)-3

f(-2) = -11

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A random sample of 250 juniors majoring in psychology or communication at a large university is selected. These students are ask
fenix001 [56]

Solution :

It is given that :

Number of students in a random sample majoring in communication or psychology at an university = 250

Total number of students majoring in psychology = 100

Number of students majoring in psychology  those who are happy = 80

So number of students majoring in psychology  those who are not happy = 20

Total number of students majoring in communication = 250 - 100 = 150

Number of students majoring in communication  those who are happy = 115

So number of students majoring in psychology  those who are not happy = 35

a). Probability of the students happy with their major choices are

    $=\frac{80+115}{250}$

    = 0.78

b). Psychology major $=\frac{80+20}{250}$

                                   = 0.4

c). Probability of the students who are happy with the communication as the choice of major = $\frac{115}{250}$ = 0.46

d). Students unhappy with their choice of major given that the student is psychology major = $\frac{20}{250}$  =  0.018

8 0
3 years ago
FIND PRODUCT USING THIS AREA MODEL 300+70+8 AND WRITE THE EQUATION
Dmitrij [34]

Answer:

378

Step-by-step explanation:

300

 70

   8

+-------

378

8 0
3 years ago
What is 2 x 1,000 + 6 x 100 + 5 x 10 + 3 x 1 in standard form?
vova2212 [387]

Answer:

Step-by-step explanation:

2006053?

3 0
3 years ago
Pls answer it<br><br> help me<br> i will mark u as the brainliest
dexar [7]

Answer: type it out and i could solve it for ya

Step-by-step explanation:all you need to do is write it out.

3 0
3 years ago
–4(x – 26) = –200<br> Solve for x
adell [148]

Answer:

76

Step-by-step explanation:

–4(x – 26) = –200

–4x + 104 = –200

       –104     –104

          –4x/–4 = –304/–4

               x = 76

3 0
3 years ago
Read 2 more answers
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