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3 years ago

Please please help me please

Mathematics

1 answer:

MAVERICK [17]3 years ago

7 0

Answer:

1st option is the answer

Step-by-step explanation:

blue line: slope is 1 and y-intercept is 1; therefore equation is y= x + 1

red line: slope is -1 and y-intercept is -3; therefore equation is y= -x - 3

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1/4x + 6 + 1/5x - 3/20x = 4.2

natta225 [31]

Answer:

Step-by-step explanation:

The explaination is in the picture

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3 years ago

natka813 [3]

Answer:

21s+8=r

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2 years ago

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

3 years ago

what are the missing variables?

Julli [10]

Answer:Missing data (or missing values) is defined as the data value that is not stored for a variable in the observation of interest. The problem of missing data is relatively common in almost all research and can have a significant effect on the conclusions that can be drawn from the data [1].

4 0

2 years ago

Read 2 more answers

1. Marlene is going on a camping trip with a group of friends. She brings 3 boxes of granola bars,

andrey2020 [161]

Answer:

13.5

Step-by-step explanation:

total boxes of granola is = 3 + 2 + 1

= 6 boxes

6 boxes = 57 bars

1 box = 57 / 6

1 box = 9.5 + 3

= 13.5 (ANS)

i hope my ans is correct if not i apologise.

3 0

2 years ago

Read 2 more answers