Find an equation whose graph is a parabola with directrix y= -1 and vertex (1,3).

Find an equation whose graph is a parabola with directrix y= -1 and vertex (1,3).

A CD costs $10. A deluxe CD bundle costs the same as 2 CDs and one premium CD bundle. The band sells 450 CDs, 110 premium CD bundles, and 45 deluxe CD bundles for a total of $11,600.

A class has five boys and seven girls. If the teacher randomly picks five students, what is the probability that she will pick exactly two girls?

A small pond contains nine catfish and five bluegill. If nine fish are caught at random, what is the probability that all of them are catfish?

A box of chocolates contains eight milk chocolates and seven dark chocolates. You randomly pick a chocolate and eat it. Then you randomly pick another piece. The first piece is milk chocolate and...

There are thirteen shirts in your closet, five blue and eight green. You randomly select one to wear on Monday and then a different one on Tuesday. You wear a blue shirt on Monday and a green shirt...

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I'm supposed to translate the word problem into a system of equations then solve. Please help!!

The sum of eight times a number, and 1, is equal to seven times the number

Find the second term of the arithmetic series having the given data. d=-3, n=12, Sn=-114 a1=13, an=-20, Sn=150 Please show me the formulas and the steps you take to solve this...

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