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3 years ago

Which best describes the relationship between the line that passes through the points

Mathematics

1 answer:

yulyashka [42]3 years ago

7 0

Answer:

Perpendicular (A)

Step-by-step explanation:

First find the gradient of the first line:

Change in y/ Change in x = -7-(-2)/ -9-(-12) = -5/3

Now find the gradient of the second line:

9-6/1-6 = -3/-5 = 3/5

When we multiply the gradient of two perpendicular lines we will get:

m1 x m2 = -1

If we multiply 3/5 and -5/3 we will get -1

Therefore it is perpendicular!

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How do you express the ratio 3.5 : 2.5 in its simplest form?

marishachu [46]

Answer:

2.5×2=5

3.5×2=7

RATIO OF 2.5 AND 3.5 IS EQUAL TO 5:7

PLZZ MARK MY ANSWER BRAINIEST

Step-by-step explanation:

4 0

3 years ago

With one method of a procedure called acceptance sampling, a sample of items is randomly selected without replacement and the en

mrs_skeptik [129]

Answer:

0.9167 = 91.67% probability that the entire batch will be accepted

Step-by-step explanation:

The CDs are chosen without replacement, which means that the hypergeometric distribution is used.

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

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

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

2100 write-rewrite CDs, and 60 are defective.

This means, respectively, that $N = 2100, k = 60$

3 of these CDs are randomly selected for testing

This means that $n = 3$

What is the probability that the entire batch will be accepted?

Probability of none defective, so P(X = 0).

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 0) = h(0,2100,3,60) = \frac{C_{60,0}*C_{2040,3}}{C_{2100,3}} = 0.9167$

0.9167 = 91.67% probability that the entire batch will be accepted

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3 years ago

Watch the video of Norman. What type of energy transformation is happening?

ANTONII [103]

I would say the answer is either c or a, can’t see the video so i can’t really determine

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2 years ago

What is the incorrect rounding for 53.864

Alex17521 [72]

If you round the 6. Or if they ask u to round the tenth place or ones place and do the opposite or something else

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3 years ago

HELP WILL MARK BRAINLIEST

nexus9112 [7]

Answer:

Its B, y=-0.89x^2+3.24x+11.93

Step-by-step explanation:

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3 years ago

Read 2 more answers