11/22/19

A single card is drawn from a standard deck. Find the probability of the following event. (Enter your probability as a fraction.) Drawing a black card or a face card
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11/22/19

A single card is drawn from a standard deck. Find the probability of the following event. (Enter your probability as a fraction.) Drawing a black card or a face card
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11/22/19

A single card is drawn from a standard deck. Find the probability of the following event. (Enter your probability as a fraction.) Drawing a black card or a face card
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11/22/19

A single card is drawn from a standard deck. Find the probability of the following event. (Enter your probability as a fraction.) Drawing a black card or a face card
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11/21/19

Use the information given below to find cos (α-β)
Use the information given below to find cos (α-β)tan(α) = 3/4, with α in quadrant I sin(β) = 3/5, with β in quadrant IIGive the exact answer, not a decimal approximation.please help and explain how... more
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11/21/19

Use the information given below to find sin (α+β)
Use the information given below to find sin(α+β)cosα = −5/13, with α in quadrant IIcosβ = 15/17, with β in quadrant IVGive the exact answer, not a decimal approximation.
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11/21/19

Rolle's Theoram
Does there exist a function f such that f(0) = −1, f(2) = 6, and f '(x) ≤ 1 for all x?YesNo    
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11/21/19

Solve: 2 log(c-6) = log (1/5) + log (20c-15)
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11/21/19

Math homework geometry

raise c to the 5th power, then find the difference of the result and d
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11/21/19

how do you find the exact value of sin(pi/24)?
the final answer must be fully simplified, no fractions of a fraction
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11/20/19

Algebra Question
Solve for a:xy+(b)/(c)=(8)/(a)-(d)
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11/20/19

goodie bag probability
at a national event, each goodie bag contained 18 red sweets and x white sweets. The probability that a sweet drawn at random will be white is 3/5.find the value of x?
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11/20/19

How do you know when to calculate standard error of the estimate?

Here is the question : I am given the regression line equation y'= 33.114 +0.487 x . The correlation coefficient is r = 1.000. Compute the standard error of the estimate , if appropriate. Assume... more
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11/19/19

Find the points on the ellipse 81x^2+y^2=81 that are farthest away from the point (1,0). List in the form of (a,b)
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11/18/19

a 172 foot tall tree casts a shadow on the ground. If the shadow is 114 ft long, find the distance from the top of the tree to the tip of the shadow.
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11/18/19

Solve the system
Solve sinsquared(w)=6cos(w) for all solutions 0≤w<2π.Give all possible answers. Round to two decimal places.
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11/17/19

Captain has 12m of fencing to make rectangular pens to put around his garden. He wants to enclose the biggest area possible. Draw three diffrent pens he could make. Which pen has the greatest area?
Captain salman has 12m of fencing that he wants to use to make rectangular pens to put around his garden to keep predators out. He wants to enclose the biggest area possible. Draw three diffrent... more
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11/17/19

Pre Calculus Ellipses Question
A certain bridge arch is in the shape of the top half pf an ellipse 116 feet wide and 31.4 feet high. At what horizontal distance from the center of the arch is the height equal to 12.2 feet? Give... more
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11/15/19

Simplify: (x/y)/(b+y)/(y)
(A) (b+y)/(x)(B) (y)/x(b+y)(C) (y)/(b+x)(D) (x)/(by+1)(E) None of these
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11/15/19

Two questions help on
Multiply and write your answer as a complex number in simplest form (no spaces): (3 - 5i)(4 + 2i)Multiply and write your answer as a complex number in simplest form (no spaces): (-4)(-8 + 5i)
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11/15/19

Erasers cost 45 cents apiece. Notebooks cost 90 cents apiece. Karla spent $18 for a total of 28 erasers and notebooks. How many notebooks did she buy?
The answer I got is 6 notebooks. However, I still got it wrong. Can someone please explain how I got this question wrong?
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11/15/19

if A={x|x is an integer and -3≤ x²+1 <2}
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11/15/19

Need help with radius
The volume of a right circular cylinder is V=pi r2h. Let h = 15 cm. Suppose the cylinder is being modified to enlarge the radius while height, h, remains the same.What will be the rate of change... more
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11/15/19

Find the exact values of sin(2θ), cos(2θ), and tan(2θ) given sec(θ) = − 13/5 and θ is in the interval [π 2 , π ]
My professor didn't explain this question well in class so I would appreciate if someone could show me how to do it step-by-step. Thank you!
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11/15/19

Calculus problem

Find the average value of the function f(x)=(9/sqrt x) on [2,8]
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