03/14/16

find the average age at which people will experience their first cardiac incident.
If the age of an initial cardiac incident (heart attack or sudden cardiac arrest) is normally distributed with a population standard deviation = 13 years, find the average age at which people will... more
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03/14/16

What is the volume of air between the cone and cylinder?
A cone fits inside a cylinder so that they share a base and have the same height. The radius of the base is 4 in. and the height of the cylinder and cone is 13 in. What is the volume of air between... more
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03/14/16

90-240.7428(e^-1.3930-e^-0.6888)
How do i get rid of the e? 
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03/14/16

Domain and range
what is the domain and rang of y=1/x+3 +3?   I've already graphed it, I'm just having trouble finding the domain and range. 
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03/14/16

Find the Combination. Pick any five basketball team members to start. There are 10 players on the team.
help me plaese
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03/13/16

8th Grade Algebra 1: y squared - 2/3y + 1/9 = 0
solve  and check solution. I am not sure how to break it down into steps to solve.   y2 - 2/3y + 1/9 = 0
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03/13/16

Circumference and radius
Kelsey bought a circular rug that is 8 feet in diameter. The rug has a blue border and a red circular center that is 6 feet in diameter. What is the area of the blue border?
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03/13/16

Circumference and radius
Brad is putting an 8 foot diameter circular flower garden in his yard. He would put plastic edging along the flower bed. How many feet of edging will Brad need to enclose his flower garden? How... more
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03/13/16

create a division number sentence for 12/4 ?
write a division number sentence using whole numbers then write a word problems using the number sentence for the fraction 12/4 please! 
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03/13/16

statistic problem
The equation used to predict the total body weight? (in pounds) of a female athlete at a certain school is y= -113 plus 3.31x1 +1.53x2 where x1 is the female? athlete's height?(in inches) and x2 is... more
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03/13/16

Linear Equation Word Problems
Abbeville is a small town that has been steadily growing since 1960. Use the table below to create a linear equation the estimate Abbeville's population over time. What will the population be in... more
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03/13/16

Solve using the sign test. Express answers in interval notation.
X+3/x-5.       -1 greater than or equal to0
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03/13/16

find the age of the 3 men
Angelo's age is 4 years more than twice Carl's age. Brandon is 5 years younger than Carl. The average age of the three is 41
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03/13/16

I got this answer wrong on the quiz could someone help me with it?
Multiply or divide as indicated. Be sure to reduce all answers to lowest terms. (a2+2a+1)/(a+1)÷(a2-1a-1)
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03/13/16

Having problems figuring out the height of a problem.?
if a cone has a volume of 121cm cubed and a radius of 5 cm how tall is it?
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03/12/16

mean word problems
the mean weight of 8 boys is 55kg and mean weight of some girls is 37kg. find how many girls were there?
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03/12/16

How to solve quadratic equation with a radical ?
Hi, the equation I need help with is : √2x2  — 3x + √2 =0 
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03/12/16

Questions below: *28,30,35,40*
#28 Does proportional equation have a y-intercept? Why or why not?   #28 Describe the characteristics of a proportional graph.   #30 Write a fraction equal to 4/6 with a numerator of... more
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03/12/16

Fill in the Blanks: (Question Below)
a) An equation that yields one solution: 3x+___=___+8   b) An equation that yields no solution: 2x+___=___x+4   c) An equation that yields infinitely many solutions: 5x-20=___(___x+___)
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03/12/16

Simple multiplication method for head
Please tell me the simplest ways for multiplication of complex number in my head like 234 x 23 =......    and 3456 x 34567=....
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03/12/16

Given U={while numbers from 1-20}, A={factors of 12}, B={factors of 15} and C={factors of 18}, find: AnB, AUB, A', B', (AUB)'
Please illustrate a Venn diagram
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03/12/16

Solve by graphing
Solve by graphing: 2x + y =-4                                y=2
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03/12/16

Differentiate Ln ( SQRT(x-2))/X²
Differentiate  Ln  od  square root of x-2  divided  by  x  squared.   Thanks  You Regards Sunny 
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03/12/16

could someone help me understand this concept?
Reduce the rational expression to lowest terms. If it is already in lowest terms, enter the expression in the answer box.   (a3 −125)/(a2-25)
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03/11/16

Help with 2 linear equation questions
Question 1. A grant of $12,000 is said to be divided into 3 scholarships. How much is given to each scholarship if the second is double the first and the third is $1700 more than the second? ... more
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