Raymond B.

03/12/20

Find the probability that a randomly selected adult has an IQ between 89 and 111.

Assume that adults have IQ scores that are normally distributed with a mean of μ=100 and a standard deviation σ=20. Find the probability that a randomly selected adult has an IQ between 89 and 111

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Geometry

03/11/20

Geometry Homework

Help !A 12 inch pizza is cut into 8 slices. You eat one slice, how many square inches of pizza did to eat? A. 113.1 in ^2B. 28.2 in ^2C. 56.5 in ^2D. 14.1 in ^2

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Algebra 2

03/11/20

Round your answer TO THE DOLLAR.

You purchase a $987 computer, with an annual depreciation rate of 20%. What's the value of your computer after 5 years? Round your answer TO THE DOLLAR. Since this is money, type a dollar sign in... more

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Algebra 1

03/10/20

A bag contains white marbles and red marbles, 32 in total. The number of white marbles is 7 less than 2 times the number of red marbles. How many white marbles are there?

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Statistics

03/10/20

The area under the standard normal curve to the right of z is .0505 and z is positive. The value of z is:

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Trigonometry

03/09/20

If sin(θ)=12/13, and θ is in Quadrant II, then what is sin(θ/2)?

Simplify your answer completely.

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Algebra 1

03/08/20

what is twice the difference of a number and 8 is at least 29

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Math Statistics Probability

03/08/20

The probability to win a gift

Everyone has 5% chances to win a gift then how about the chance of a 4 men's team to win 1 gift? Is 0.95^4 right? How to calculate it with 5% ?

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Maths Coordinate Geometry

03/08/20

A(2,2) B(11,4) C(14,8): AC is the perpendicular bisector of BD. Find the coordinates of D

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Geometry

03/08/20

Quiz question please help

If two rays are opposite rays, then their union is a straight line. True or false

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Geometry

03/08/20

Quiz question please help

The exterior sides of adjacent angles 1 and 2 are perpendicular. If BD is the bisector of < 1and BE is the Bisector of < 2, find the measure of < DBE.

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Precalculus Trigonometry

03/07/20

Use a calculator to find sin ^-1 (0.3536) in radians and degrees

sin^-1(-0.3536) round the answer to 4 decimal places as needed.

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Math Pre Calculus

03/07/20

How do you know if a triangle is acute, obtuse, or a right triangle by looking at it's side lengths?

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Algebra Word Problem Systems Of Linear Equations

03/07/20

A train traveled 400 miles in 9 hours. The speed of the train for the first part of the journey was 40 miles per hour while the speed for the second part of the journey was 50 miles per hour.

Find the distance traveled when the train was traveling at 50 per hour.

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Algebra Word Problem Systems Of Linear Equations

03/07/20

A train traveled 400 miles in 9 hours. The speed of the train for the first part of the journey was 40 miles per hour while the speed for the second part of the journey was 50 miles per hour.

Find the distance traveled when the train was traveling at 50 per hour.

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Algebra 1

03/06/20

5x-y=7 3x+2y=12

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Math Trigonometry Statistics

03/06/20

how many different family night possibilities are there? (info in description - pls help!!!)

Can someone please help me with this question? I don't understand how to do it and my teacher explained it but it still makes no sense to me. If it helps, we have been using permutations etc on the... more

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