09/12/20

What is the probability?
Jari draws 4 cards at random from a regular deck of cards without replay. What is the probability that he getsa) Spadesb) at least 1 king
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09/12/20

A toy cannon is anchored to the ceiling. It shoots a ball staight downward at -1.5 m/s . After 0.6 s , what is the displacement of the ball?
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09/11/20

People visiting video rental stores often rent more than one DVD at a time.
People visiting video rental stores often rent more than one DVD at a time. The probability distribution for DVD rentals per customer at Video To Go is given in the following table. There is... more
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09/09/20

recursive equation for 2,4,6,8
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09/09/20

Find the current in a light bulb if it takes 10 seconds for a total charge of 50 C to pass a point in the wire.
10 A5 A8 A15 A
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09/08/20

.333333 (.3 bar) irrational or rational
Is .3333 rational or irrational?I know that .333 (bar) can be converted to 1/3 which (a/b) makes the 1/3 rational so does the .333 get also classified as a rational number?I was told that .3333... more
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09/08/20

Let a(t) = √2t+9 and b(t) = t^2 - 8, what is b*a(t)?
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09/07/20

Let a(t) = √2t+9 and b(t) = t^2 - 8, what is b*a(t)?
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09/06/20

Approximate the mean for the following data set. Round your answer to one decimal place.
Class. Frequency 0-9. 7 10-19. 10 20-29. 8 30-39. 14 40-49. 15
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09/06/20

What is the probability that all 4 selected are men​?
executive committee consists of 12 ​members: 5 men and 7 women. 4 members are selected at random to attend a meeting in Hawaii. The names are drawn from a hat.
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09/06/20

Question about Variability

Calculate SS (sum of squares, variance, and standard deviation for the following Sample of scores: 2,3,5,5,3,6.
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09/06/20

displacement and distance
A student starts at the origin and ends up at a position 500 m north of the origin. She knows she walked 250 m straight west, but then she was blindfolded and led to the final position. Assume she... more
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09/06/20

slope of the tangent line using limit
Use the limit definition of the derivative to find the instantaneous rate of change of f(x)=2x2+5x+3 at x=4
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09/06/20

Tangent line using basic differentation
If h(x)=4−3x3, find h'(1).   Use this to find the equation of the tangent line to the curve y=4−3x3 at the point (1,1). The equation of this tangent line can be written in the... more
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09/06/20

Tangent line using basic differentation
The graph of f(x)=2x3+9x2−60x+13 has two horizontal tangents. One occurs at a negative value of x and the other at a positive value of x. What is the negative value of x where a horizontal tangent... more
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09/05/20

1D kinematics multi-system dog cat
A dog is running toward a cat that is 1.5 m away. Initially at rest, the cat sees the dog running toward her and accelerates away from the dog at 0.85 m/s/s directly toward a small pet door that is... more
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09/05/20

word problem algebra
the length of a picture frame is 3in greater than the width. The perimeter is less than 52 in. Describe the dimension of the frame.
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09/05/20

y=4/ln(x) differentiate the function
differentiate using the quotient rule. Please include steps and formulas I am struggling to understand
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09/05/20

Slope of the tangent line using limit
Use the limit definition of the derivative to find the instantaneous rate of change of f(x)=2x2+5x+3 at x=4
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09/05/20

ALGEBRA 130 A HELP ME
The median player salary for a professional football team was $430700 in 2000 and $1316208 in 2008. Write a linear equation giving the median salary y in terms of the year x. (Let x=0 represent 2000)
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09/05/20

Eliminate the parameter to find a Cartesian equation for the curve: x=cos(t), y=tan(t), t∈ℝ.
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09/04/20

Following all significant figure rules use your calculator to solve: 10.26 + 645.9. You may enter your answer using scientific notation.

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09/04/20

Distance and Displacement
What two perpendicular displacements will move an object from the origin to a position of (4, 3) m? *
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09/04/20

Distance and Displacement
What is the final position of a robot that starts from (0, 0) m and makes displacements of (4, 4) m, (3, 3) m, and (−4, −2) m *
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09/04/20

2-Dimensional Motion
A hiker walking along a trail on a 300 meter cliff encounters an interesting looking rock. He promptly kicks it off the cliff with a velocity of 20 m/s with a 15-degree angle. How far away does... more
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