MATHEMATICS HIGH SCHOOL

Hey, Whats The answer please explain your answer marking brainliest:D. Please Help Im tired..

Answers

Answer 1

Answer:

Answer:

The answer is C

Step-by-step explanation:

-3+3 is 0

Answer 2

Answer:

Answer:

Step-by-step explanation:

The distance between -3 and 0 can be calculated by the absolute value of the difference of the two numbers. -3-0 = -3. |-3| = 3

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Suppose that X and Y have the following joint probability function: f(x,y) = { 3x, | 32, if 0 ≤ y ≤1 0, otherwise. a) Find the variance of the random variables X. b) Find the conditional PDF of Y given X.

Answers

Answer:

see below

Step-by-step explanation:

a) The variance of random variable X is

−

b) The conditional PDF of Y given X is:

For

≤

�

≤

0≤y≤1,

�

(

�

∣

�

)

f(y∣x)=1.

For

�

y outside the range [0, 1],

�

(

�

∣

�

)

f(y∣x)=0.

You are running a 10 mile race. You run the first 3 miles in 24.7 minutes. Your goal is to finish the race in less than 1 hour and 20 minutes. What should you average running time (in minutes per mile) be for the remaining miles?

Answers

Answer:

Therefore you have to run every mile in ~ 8 minutes.

Step-by-step explanation:

10 miles - 3 miles = 7 miles left.

1 hour 20 minutes - 24.7 minutes= 80 minutes - 24.7 minutes

= 55.3 minutes left

Therefore, you have 55.3 minutes left to run 7 miles. But since you want to finish in LESS than 1 hour and 20 minutes, subtract the .3.

So:

7 miles = 55 minutes

1 mile x minutes

x minutes= 55 x 1 ÷ 7 miles

x minutes = 7.85

x minutes = ~ 8 minutes

Therefore you have to run every mile in ~ 8 minutes.

Hope this helps!

What is 1/6 + (2/3 - 1/4) in simplest form

Answers

$(1)/(6)+((2)/(3)-(1)/(4))=\ \ \ \ | make\ a\ common\ denominator\n\n(2)/(12)+(8)/(12)-(3)/(12)=(2+8-3)/(12)=(7)/(12)\n\n The\ simplest\ form \ is\ (7)/(12).$

Name the pair of angle, Find the measure of angle b

Answers

Answer:

b=34

Step-by-step explanation:

<a(340 corresponds to <b

14.42 Round to the nearest tenth.

Answers

The answer is 14.4 because if the last number is 5 or higher you round up if not you round down. Then, you should get 14.40 but, the 0 isn't necessary so the answer is 14.4.

The answer is 14.4, because when you round, if the number is 4 or lower, you make it a zero. If it is a 5 or higher, you make it a ten. But since it is a 2, you make it a zero, and 14.40 is the same as 14.4, because if you make it a fraction and simplify it, you still get the same as 14.4. So your answer is 14.4.

Answer : 14.4

Hope it works!!!

A^2 – a – 20 factor completely

Answers

Factoring this out will be: (a-5) (a+4)