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3 years ago

What’s the answer????

Mathematics

2 answers:

swat323 years ago

6 0

Answer:

D. $y=-3\left(x+1\right)^{2}$

Step-by-step explanation:

I graphed the parent function and the changes made to make the new function.

serious [3.7K]3 years ago

4 0

Answer:

Step-by-step explanation:

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A stationary store has decided to accept a large shipment of ball-point pens if an inspection of 17 randomly selected pens yield

Leno4ka [110]

Answer:

0.762 = 76.2% probability that this shipment is accepted

Step-by-step explanation:

For each pen, there are only two possible outcomes. Either it is defective, or it is not. The probability of a pen being defective is independent from other pens. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

17 randomly selected pens

This means that $n = 17$

(a) Find the probability that this shipment is accepted if 10% of the total shipment is defective. (Use 3 decimal places.)

This is $P(X \leq 2)$ when $p = 0.1$ . So

$P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2)$

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{17,0}.(0.1)^{0}.(0.9)^{17} = 0.167$

$P(X = 1) = C_{17,1}.(0.1)^{1}.(0.9)^{16} = 0.315$

$P(X = 2) = C_{17,2}.(0.1)^{2}.(0.9)^{15} = 0.280$

$P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.167 + 0.315 + 0.280 = 0.762$

0.762 = 76.2% probability that this shipment is accepted

8 0

4 years ago

(3^2 + 9x + 6) − (8^2 + 3x − 10) + (2x + 4)(3x − 7)

inna [77]

(12+9x) - (6+3x) + 6x + -3
6+3x + 6x+-3
3+ 9x

3 0

4 years ago

If the sequence below is a geometric sequence then what will the next two numbers in the sequence be? Sequence: 3, 9,…

Aliun [14]

Answer: 27,81

Step-by-step explanation:

First you do 3*3=9

9*3=27

27*3=81

So the sequence will be 3,9,27,81

My child found this helpful

7 0

3 years ago

Please help me or I'm gonna fail math

12345 [234]

Answer:

Step-by-step explanation:

as said in my comment

A: (3x-2)X(x+1)

B: substitute 3 in(if m=meters),

(3x3-2)

9-2

7X(x+1)

3+1

7X4

5 0

2 years ago

Read 2 more answers

Prism Volume answer from computer software.

photoshop1234 [79]

I still have absolutely no idea how it got that answer. Just move on and accept that the answer is still wrong no matter what

6 0

3 years ago