10/10/20

Factor By Completing the Square

x^2 + 21x -84 = 0x^2 +21x = 84x^2 +21x +441/4 = 777/4I am able to get to this point....but how do I arrive at:(x +21/2) = 777/4 <<<<<<< My question is NOT to solve,... more

10/10/20

What is the cube root of -700×2×49×5

10/10/20

How fast does train B need to travel to catch up?

Train A leaves the station going west at 40 mph. 2 hours later train B heads west too. How fast does train B need to travel in order to catch up to train A in 6 hours?

10/10/20

find the antiderivative

(3 x^2-2 X^4)/(x^5) in the variable x where x≠0

10/10/20

SIX LESS THAN THE DIFFERENCE OF A NUMBER AND EIGHT

10/10/20

How to write this as an inequality

Twelve is no more than the sum of -1.5 times a number w and 4

10/10/20

How is such a math problem solvable?

I have been trying to solve the following math problem for 30mn and I just can't. Here is the problem, I should add Parenthesis to make the equations trueThe first: 18 - 7 + 3 - 1 = 7The second: 6... more

10/10/20

Ten less than the difference between a number and three is nine

equation and what x equals

Age Problem ( Basic Algebra)

Harry is twice as old as Ron and Hermione is 9 years older than Ron. 3 years ago, Harry was 9 less than 3 times Ron’s age. How old is Hermione now?

Age Problem (Basic Algebra)

A person’s present age is two – fifth of the age of his mother. After 8 years he will be one – half of the age of his mother. How old is the mother at present?

Basic Algebra (Word Problem)

One number is 27 more than another. The difference of twice the larger minus two – thirds of the smaller is 70. What are the two numbers?

10/10/20

About 5% of the population has a particular genetic mutation. 100 people are randomly selected.

Find the mean for the number of people with the genetic mutation in such groups of 100.

10/10/20

Slope of 1/2 that passes through the point (6,-4)

10/10/20

3kg= __________g and 200cm=______________m I really don't understand!!🤔🤔😭😭😭😭

Okay so..... I have a question on my paper it says: 3kg= ________g ________x________=_____________and the next one says:... more

10/09/20

Need help with this math question

becky savings account has a balance of $453.00. After 2 years what will the amount of interest be at 4% compounded quarterly

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