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2 years ago

PLZ I NEED HELP i really need help on this or i will fail!!!

Mathematics

2 answers:

Alexxandr [17]2 years ago

6 0

Answer:

Step-by-step explanation:

Crazy boy [7]2 years ago

3 0

A

If you have the point (3,5) x = 3 and y = 5
x + 1 = 3 + 1. 3 + 1 = 4
The point (4,5) is one unit to the right of (3,5) so (x+1,y) would move one to the right

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Same receive the weekly paycheck here's a copy of one of his pay statements if there are four pages per month what is Sam's mont

Lady_Fox [76]

$654.48 i believe. maybe

4 0

3 years ago

A manufactured lot of buggy whips has 20 items, of which 5 are defective. A random sample of 5 items is chosen to be inspected.

Finger [1]

Answer:

$P(X=1)$

And using the probability mass function we got:

$P(X=1) = (5C1) (0.25)^1 (1-0.25)^{5-1}= 0.396$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

For this cae that one buggy whip would be defective is $p = \frac{5}{20}=0.25$

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=5, p=0.25)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

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

And we want to find this probability:

$P(X=1)$

And using the probability mass function we got:

$P(X=1) = (5C1) (0.25)^1 (1-0.25)^{5-1}= 0.396$

3 0

3 years ago

Solve for x. 16 = -2x - 1 Solve for x. 16 = -2x - 1 pls

kupik [55]

Answer:

1. 7

Step-by-step explanation:

4 0

2 years ago

***45 POINTS*** PLEASE EXPLAIN WELL AND SHOW WORK USED TO FIND THE ANSWERS

IceJOKER [234]

Okay so basically the axis of symmetry is the h (technically where x is on the graph)nvalue so for the first one the answer is -4 for the second one because in vertex form the value of h (x-h) is in the parenthesis. For the second one you will have to turn the equation from standard to vertex. First step is to factor out the first two terms' coefficients. if you factor out two the equation turns into 2(x^2-8x) +15 The next step is you take 8 and divide it by 2 and then square it which equals 16. You add this term into the parenthesis so you can factor out like a quadratic. The equation turns into 2(x^2-8x+16) +15 to balance out the equation you have to subtract the term that you put in the parenthesis outside the parenthesis. Since 16 is the parenthesis you need to multiply it by 2, so your equation will turn into y=2(x^2-8x+16) -17 then factor out like a regular polynomial and get y=2(x-4)^2 -17 now that it's in vertex form you can see your answer is positive 4. For the third problem just look where the vertex is and see the x coordinate. The answer is 1.

The order is the g(x), the graph and the f(x)

4 0

3 years ago

25. Which of the following is equivalent to: 7 2 x 7-4

MissTica

Answer:

It's D or 1/7^2

$\frac{1}{7^{2} }$

Step-by-step explanation:

They both equal 1/49

3 0

3 years ago