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3 years ago

Answers please, Need help...

Mathematics

1 answer:

alexandr402 [8]3 years ago

3 0

Use a calculator and it gives you the answer right away

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The key to safe skid recovery is? (A-no traffic B-wide tired C-early detection D-good brakes

sineoko [7]

The answer is c, early detection.

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3 years ago

Read 2 more answers

Evaluate the expression <br> 3p – 2q + 6 when p = 8 and q = -2

Yuliya22 [10]

Answer:

Step-by-step explanation:

substitute

3(8)-2(-2)+6

dsitribute

24+4+6

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3 0

2 years ago

Need help please! A=?

zubka84 [21]

Answer:

m∠A ≈ 103°

Step-by-step explanation:

Enough information is shown for us to be able to use the Law of Sines to find the angle. That tells us ...

sin(A)/a = sin(C)/c

A = arcsin(a/c·sin(C)) = arcsin(26/6·sin(13°)) = arcsin(0.974788)

A = 77.1° or 102.9°

The claim is that the figure is drawn to scale, so we can assume that A is an obtuse angle:

m∠A ≈ 103°

<em>Additional comment</em>

The sum of angles A and B must be 180° -13° = 167°. Since angle A is the largest, it must be more than half this value, or more than 83.5°. That means, we must choose the obtuse angle for A, rather than the acute angle.

7 0

2 years ago

Highest common factor of 8 and 10

natali 33 [55]

8: 2 2 2
10: 2 5
GCF: 2
The greatest common factor is 2

3 0

2 years ago

Lindsay is checking out books at the library, and she is primarily interested in mysteries and nonfiction. She has narrowed her

Ratling [72]

Answer:

0.0677 = 6.77% probability that they will all be nonfiction

Step-by-step explanation:

The books are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes 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 successes.

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.

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

In this question:

10 + 12 = 22 books.

She chooses 4 books, which means that $n = 4$

12 nonfiction, which meas that $k = 12$

What’s the probability that they will all be nonfiction?

This is P(X = 4). So

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

$P(X = 4) = h(4,22,4,12) = \frac{C_{12,4}*C_{10,0}}{C_{22,4}} = 0.0677$

0.0677 = 6.77% probability that they will all be nonfiction

7 0

2 years ago