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the systolic blood pressures have a normal distribution with a average 120 and a sd 8. the percentage of individuals with a systolic blood pressure above 120 is

the systolic blood pressures have a normal distribution with a average 120 and a sd 8. the percentage of individuals with a systolic blood pressure above 120 is

04/11/13

I start college in may and i dont understand anythig about algebra

I graduated in 1988 i only learned adding subtracting and multiplication and division i start online classes in may and i dont understand anything about algebra

Bio Stat Question:

1. Is there a difference in age between patients on the fast-track protocol, and those receiving standard care? 2. Is the proportion of patients who are female in the fast-track group... more

03/29/13

Find the volume of a sphere with a radius of 7cm to the nearest whole unit

I am not getting the correct answer no matter how many times I try the problem I feel like it is a simple problem and I don't know why I am not getting the right answer.  Thank you so much!

Scientific notation 53030000

What is this: 53030000 in scientific notation? 

03/25/13

(3,-1); y= 2x-8

Write an equation of the line that passes through the given point and is parallel to the graph of the equation  

03/25/13

What does n! mean

In the algebra problem: for any positive integers n,(n+1)!/n! -n=0 what does the ! mean?

03/25/13

For a show adult tickets are $8.75 and children's tickets are $3.50. 460 tickets were sold for a total of 3143 how many adults tickets were sold?

Adult ticket = 8.75 child ticket = 3.50 460 tickets we're sold totaling 3143 how many adults tickets were sold

03/21/13

Compute the surface area?

Compute the surface area of the portion of the plane 3x+y+2z=6 inside the cylinder x^2+y^2=4. (Answer: 2pi*sqrt(14)) The formula for the surface area of a cylinder is A=2pi*r^2+2pi*r*h But how do I... more

03/21/13

4-8x/x+1=8/x+1

i dont understand how to do this problem please help me thanks

03/21/13

Calculating three or four of 15 adults

Based on data from the national center of health, 26% of adults are overweight. A random sample of 15 adults is taken. Calculate the probability that three of four of 15 people selected are... more

I don't know how to use a stem and leaf plot. Can you help me?

Help me I need it.

03/20/13

Similarities between independent and dependent events

Compare and contrast dependent and independent events

03/20/13

whats the color of the sky?

My friend and i were making a bet to see what is the color of the sky, his parents said they don't know. Neither do mine, so we are trying know,whats the color of the sky

03/20/13

find the values of theta..... hardest trig Q..

  please.. not too sure how to solve this question.. any idea....? T=theta

Determine the area under a normal distribution graph with a mean of 55 and a standard deviation of 7?

a) to the right of x = 58 b) to the left of x = 24 Please show graphs if you can!!

How to find a percentage from standard deviation and mean?

Tommy Wait’s times between pitches is normally distributed with a mean of 36 sec. and a standard deviation of 2.5 sec. What percentage of his times between his pitches are 30 and 34 seconds? Please... more

03/20/13

How to find z-scores?

How can I find the z-scores of 0.7491, 0.0931, and 0.3452?

Scores for an entry exam to a university...?

Scores for an entry exam to a university are normally distributed with a mean of 75 and a standard deviation of 6.5: a) If the top 5% are admitted with a full scholarship, what is the lowest score... more

03/19/13

Can there more then one outlier in the box and whisker plot?

I'm doing a project and I got 3 outliers, would that be right?

03/17/13

The length of an arc is 10cm. find the angle subtending by the arc if the circumference of the circle of which the arc forms part is 60cm.

The length of an arc is 10cm. find the angle subtending by the arc if the circumference of the circle of which the arc forms part is 60cm.

Solve Linear Equations by Matrix Methods

8.8x -1.5y+1.6z=13.32 3.3x+3.0y-0.1z=1.24 5.5x+4.5y+3.2z=18.76

03/13/13

how do I do algebra with fractions

Here is an example of the problems I am doing: 9+x/2=7

03/13/13

how do i graph x < 4and x > 6 on a number line?

This is an inequality and a graph

03/13/13

A man flies a small airplane from Fargo to Bismarck, North Dakota ---

A man flies a small airplane from Fargo to Bismarck, North Dakota --- a distance of 180 miles. Because he is flying into a head wind, the trip takes him 2 hours. On the way back, the wind is still... more
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