01/28/15

the sum of 3 times a number plus 10, subtracted from 9 times a number
How to write the expression
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01/28/15

Select the product of (7x - 4)(2x + 8).
Select the product of (7x - 4)(2x + 8).   I have the answer of 14x^2+48x-32 is this correct?
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01/28/15

Help i am almost done with my final exam!!!!!
The sum of two numbers is 36 . One number is 2 times as large as the other. What are the numbers?   Larger Number: ? Smaller number: ?
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01/28/15

Multiplication comparisons
Hi tutor,   My daughter had a math problem she try to do but we quite not understand what the question ask.  Please explain to us.  Thank you   question:  The toy store Has 8 times as many... more
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01/28/15

What is 24% of 300?
Please explan steps and give answer. Please make it easy to understnd..
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01/28/15

A line passes through (3,4) and (4,1). Find the value of Y so it passes through the two points
I need help with solving linear equations and slope please help
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01/28/15

f(x) = x2 + 6x + 5 x + 1 ; a = -1
Use a graph of f or some other method to determine what, if any, value to assign to f(a) to make f continuous at x = a
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01/28/15

word problem in 7th grade math
A monk climbs up to the middle step. Then he climbs up 8 steps. The he walks down 12 steps and then takes one step up. Now he walks up the remaining steps 3 at a time which only takes him 9 paces.... more
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01/28/15

(2e^8.7n+1)-1= 25
2e8.7n+1-1= 45    Please help.  I do not understand how to solve.    TY 
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01/28/15

Math problem
Kelly wants to accumulate 1 million dollars by investing a lump sum into an IRA (Individual Retirement Account) and letting it grow for the next 45 years. After researching different IRA's she has... more
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01/28/15

8+2(x-5)=2[8-6(x+2)]
8+2(x-5)=2[8-6(x+2)]
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01/28/15

For any data set we can say ______ _______ ________ % of values fall within 2 standard deviations of the mean.
what % fall within 2 standard deviations of the mean?????????
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01/28/15

Given µ = 75 and s = 10 and the population is mound shaped. Given X = 75 (an observation in the population), what is its Z-score?
I am having a hard time figuring this one out. PLEASE HELP
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01/28/15

A model car is made to a scale of 2 to 25. If the model is 15 inches long how long is the actual car
I am working on proportions and ratios for seventh grade math. Im really confused by this question. I'm really looking for some help.
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01/28/15

Which of the following represents the quadratic equation below in standard form? HELP ASAP IM TAKING A TEST
Which of the following represents the quadratic equation below in standard form? A.   B.   C.   D.
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01/28/15

what distance will the constable catch the thief
thief is running at a speed of 6km/h and police is chasing with a speed of 8km/h and the distance between them is 500m
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01/28/15

what is the angle in degrees that the hour hand has travelled from 3:00pm?
consider a clock with an hour hand that has a length of 3 inches. suppose the tip of the hour hand has travelled 6 inches having begun at 3:00pm . what is the angle in degrees that the hour hand... more
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01/27/15

how can you use more then and less the to tell about this three numbres 13 23 and 33
How can you use more then and less then to tell about this three numbres 13 23 33
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01/27/15

what is less than -20 but greater than -21
Compare and order rational numbers
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01/27/15

What size of square would you cut out if the volume of the box must be 48 cubic inches?
An open box is to be made from a square piece of material with a side length of 10 inches by cutting equal squares from corners and turning up the sides.
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01/27/15

a chemist mixes 30% chlorine solution with pur water to dilute mixture. How much chlorine and water must be mixed to make 20 ml of a 10% chlorine solution?
a chemist mixes 30% chlorine solution with pure water to dilute mixture How much chlorine and water must be mixed to make 20 ml of a 10% chlorine solution
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01/27/15

One positive number is 5 times another number. The difference between the two numbers is 124. Find the numbers
I think the problem is 5(x)-2=124
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01/27/15

how do i factor s^2+4st+12t^2
s2+4st+12t2
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01/27/15

Express the inequality in interval notation: x is greater than or equal to -5
 Express the inequality in interval notation: x is greater than or equal to -5
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01/27/15

older pump 3 times longer than a newer pump. together takes 2 pumps 6 hours to drain. how long working alone?
Algebra help
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