William W.

09/16/19

What are the percentage observations for A, B, and C?

Data are drawn from a bell-shaped distribution with a mean of 20 and a standard deviation of 2.a. Approximately what percentage of the observations fall between 18 and 22? (Round your answer to the... more

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Math Probability

09/15/19

A very confusing math question

Suppose that you randomly choose an integer value between -80 and -90 for a. Then you choose an integer value between -5 and -8 for b.What is the probability that a/b is also an integer?

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Geometry

09/15/19

Geometry angles

The measure of an angle is 6 degree less than its compliment

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Physics

09/15/19

Two masses are attracting each other with a gravitational force of 99N. What will the force of attraction be of the distance between them triples

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Geometry

09/15/19

The coordinates of midpoint M and endpoint A of a segment are M(-1, 2) and A(3, -5). Find the coordinates of the other endpoint.

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Probability

09/15/19

Probability Question

Couldn’t figure out this problem for the life of me!There are 16 marbles in a bag. 6 blue marbles, 7 red marbles, and 3 free marbles. What is the probability that if 3 marbles are selected without... more

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Algebra 2

09/14/19

Timmy solved the polynomial equation x^5 -x^4-2x^3+2x^2-24x+24=0 and his solutions were x=-1,√6, 2i. Explain his error(s) and list the correct solutions.

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Math Geometry Physics

09/14/19

Combined area under a graph

Working on getting distance under a graph (velocity/time)imagine a section which is comprised of a square with a right angle triangle stacked on top of it.Calculating area of square + area of... more

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Elementary Math

09/14/19

at a neighborhood park 1/3 of the are is to be used for a new playground. Swings will be placed on 1/4 of the area of the playground. Determine what fraction of the park will be swings

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Chemistry Mass

09/14/19

Chem: when mass changes

Explain what it means for mass to change.

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Geometry

09/14/19

SOMEONE FIND ANSWER TO MATH QUESTION.

Use the given information to find the measure . Hint: Use Angle Addition Postulate Given: Find

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Physics

09/14/19

force of a box and a slippery ramp

A 10 kg box is being pushed up a slippery ramp. The coefficient of friction between the box and the ramp is just µ=0.1 ... (ramp is 10°)a) what force does the man need to apply to the box to... more

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Chemistry Physics Mcat

09/14/19

Chemistry/Physics Question

What is the energy of a photon with a frequency of 280 GHz?

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Calculus

09/14/19

how do i express the following as a piecewise function: f(x)=(|x^(2)-2x|)/(x-2)

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Prealgebra

09/14/19

A recipe calls for 3 1 3 3 1 3 cups of flour. How many cups will you need if you are preparing 6 batches of the recipe?

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Math Calculus Derivative

09/14/19

Simplifying for derivative

consider the function f(x) = 4sqrt(x)-1a) Simplify as much as possible in f(4+h)-f(4)/hb) Use the result to find the derivative of f'(4)

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Math Trigonometry

09/13/19

A Ferris wheel has a diameter of 60 feet. When you start at the top of the Ferris wheel, you are 62 feet from the ground. The Ferris wheel completes one rotation in 2 minutes.

A Ferris wheel has a diameter of 60 feet. When you start at the top of the Ferris wheel, you are 62 feet from the ground. The Ferris wheel completes one rotation in 2 minutes. 1. Create a graph... more

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Ap Physics Projectile Motion

09/13/19

Projectile Motion AP Physics

A plane drops a hamper of medical supplies from a height of 3620 m during a practice run over the ocean. The plane’s horizontal velocity was 107 m/s at the instant the hamper was dropped. What is... more

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Differential Equations

09/12/19

How many months will he have to belong at each before the costs are the same

JJoey wants to buy a gym membership he visited two gyms with two different fees gym A has a $40 sign up fee and it cost $25 per month. Gym B has a $50 sign up fee and it cost $20 per month

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Linear Algebra

09/12/19