i am doing khan academy and im having a hard time with some questions.

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i am doing khan academy and im having a hard time with some questions.

find the basic function

The income of trainees at the local factor a normally distributed with a mean of $1,100 and a center division of $150. What is the probability the mean salary of 10 randomly selected trainees and...

According to information published by ACT in 2005, the average salary of a person with only a high school diploma will be 20% less than the average salary of a person with a 2-year associate’s degree...

Three functions are shown: f(x)= 4x^2+7x-9. G(x)=-2x^2-4x+6. H(x)= 1/4(x+1)^2. What is an equivalent expression for f(x)-g(x)+h(x)?

The price of a stock started out at $150 per share and declines to 75% of its previous value every year

The length is twice as long as the width. The height is 4 inches greater than the width. The volume is 48 cubic inches. Find the length, width, height

Prove the quotient law of logarithms by applying algebraic reasoning.?

Write an equation of a line.

Discuss the following: the population that you are trying to predict, where and how are you selecting your sample, what sampling method would you use, how would you assure that you are selecting a...

5. Calculate the as purchased amount if you require 10lbs peeled and seeded/cored of each of the following fruits: Grapefruit, Apples, Pineapples, Kiwi

Please help!!

The correct answer on the test was 58 mph but no matter what I do I always get 38. Sarah's car traveled 20 mph faster on the first 110 miles than it did on the remaining 80 miles. The...

I need help

Determine an equation of a line in various from given two points

a turtle and a snail together cost $140. If the turtle cost $20 more then the snail, how much do they each cost?

Please help me anseering this question. Thank you

You and your friend are out for a run. You are running at 9 miles per hour and your friend is walking at 3 miles per hour, along a 3-mile trail. Both of you keep a constant pace. However, whenever...

Word problem

what is one-half of a number

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