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3 years ago

Given that f(x)=x^2+4x-32f(x)=x

Mathematics

1 answer:

Margaret [11]3 years ago

8 0

Answer:

So your question was not very clear but with (f+g) im guessing thats f(x)+g(x)

So first we add them x^2+4x-32 + x-4 then we will get x^2 + 5x - 36

Then we need to multiply both

(x^2+5x-36)(x^2+5x-36)

(x^2+5x-36)^2

The only reason im not solving it out is because it yields large numbers and you might not understand.

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A factory received a shipment of 11 hammers, and the vendor who sold the items knows there are 2 hammers in the shipment that ar

zhenek [66]

Question:

If a sample of 2 hammer is selected

(a) find the probability that all in the sample are defective.

(b) find the probability that none in the sample are defective.

Answer:

a $Pr = \frac{2}{110}$

b $Pr = \frac{72}{110}$

Step-by-step explanation:

Given

$n = 11$ --- hammers

$r = 2$ --- selection

This will be treated as selection without replacement. So, 1 will be subtracted from subsequent probabilities

Solving (a): Probability that both selection are defective.

For two selections, the probability that all are defective is:

$Pr = P(D) * P(D)$

$Pr = \frac{2}{11} * \frac{2-1}{11-1}$

$Pr = \frac{2}{11} * \frac{1}{10}$

$Pr = \frac{2}{110}$

Solving (b): Probability that none are defective.

The probability that a selection is not defective is:

$P(D') = \frac{9}{11}$

For two selections, the probability that all are not defective is:

$Pr = P(D') * P(D')$

$Pr = \frac{9}{11} * \frac{9-1}{11-1}$

$Pr = \frac{9}{11} * \frac{8}{10}$

$Pr = \frac{72}{110}$

8 0

3 years ago

Can someone tell me if I’m right?

mestny [16]

You forgot to expand and simplify it... you only did step one, carry on your doing great 4 marks doesn’t come easy :)

8 0

3 years ago

What is the value of g?<br> g<br> 70

lara [203]

Answer: 70

Step-by-step explanation:

easy

3 0

3 years ago

Find the mean of the numbers<br> 1, -3, -10<br> -15, 4, -22<br> -7.5, 3, -6.5

Travka [436]

Answer:

13. -4 14. -11 15. $-\frac{11}{3}$

Step-by-step explanation:

13. (1-3-10)/3

14. (-15+4-22)/3

15. (-7.5+3-6.5)/3

5 0

3 years ago

Read 2 more answers

What are the steps to my answer?

stepan [7]

Answer:

Step-by-step explanation:

f[g(x)]=(2x)²+3(2x)-3...substitute the values of g(x) into the function f(x)
f[g(x)]=4x²+6x-3...simplified

7 0

2 years ago