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3 years ago

HELP PLEASE (will give brainliest and thanks)

Mathematics

1 answer:

denpristay [2]3 years ago

5 0

Pythagorean Theorem is a^2 + b^2 = c^2
Use it to find the hypotenuse of a right triangle
Formula for:
Volume of cones- 1/3 * 3.14 * r^2 * h
Volume of cylinders- 3.14 * r^2 * h
Volume of Spheres - 4/3 * 3.14 * r^3

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In a certain college, 33% of the physics majors belong to ethnic minorities. Of 8 students are selected at random from the physi

tiny-mole [99]

Answer: 0.0187

Step-by-step explanation:

The binomial distribution formula for probability :-

$P(x)=^nC_xp^x(1-p)^{n-x}$ , where P(x) is the probability of getting success in x trials , n is the total number of trials and p is the probability of getting success in each trial.

Given : The probability that the physics majors belong to ethnic minorities =0.33

Number of students selected : n= 8

Now, the probability that more than 5 belong to an ethnic minority :-

$P(x>5)=P(6)+P(7)+P(8)\\\\=^8C_6(0.33)^6(0.67)^{2}+^8C_7(0.33)^7(0.67)^{1}+^8C_8(0.33)^8(0.67)^{0}\\\\=(\dfrac{8!}{6!2!})(0.33)^6(0.67)^{2}+(8)(0.33)^7(0.67)^{1}+(0.33)^8(0.67)^{0}\\\\=0.0186577086013\approx0.0187$

Hence, the probability that more than 5 belong to an ethnic minority = 0.0187

7 0

2 years ago

A set of numbers is shown below: {0, 0.4, 1, 2, 3} Which of the following shows all the numbers from the set that make the inequ

klemol [59]

Answer:

{1,2,3}

Step-by-step explanation:

The others will not show all the numbers from the set to make the inequality true

8 0

2 years ago

How do you turn a percent into a decimal?

olchik [2.2K]

Answer:multiply the percent times 100

Step-by-step explanation:

8 0

2 years ago

Please help me I will give brainliest

andrew11 [14]

Answer:

1st one

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Correct answer will get brainliest

sineoko [7]

Answer:

B 2/3

Step-by-step explanation:

it's positive 2 over 3

up two and over three

because it's rise over run

so your answer would be the 2nd option or B

I hope this helps! have a nice day/night, blessings, xx, nm <3 :)

8 0

2 years ago