07/06/18

High School Pre-Cal

What is the sum of the following infinite series?   7-7 + 7 - 7    --    --   -- +    2    4    8        _A. 4.6         _ B. 4.7         _ C. 4.8   D. ∞

07/06/18

find the speed ofeach plane

 A turbo-jet flies 50mph faster than a super-prop plane. If a turbo-jet goes 2000mi in 3 hr less time than it takes the super-prop to go 2800 mi, find the speed of each plane

07/06/18

y=1/2x+2 then use only two of the ordered pairs two graph the equation

Dont understand

07/06/18

find the equation of the line that is perpendicular to y=-2/3x and contains the point (4,-8)

Need help with this. Help please!!

I need help will u help me

A shed is 8ft wide. One raft we makes an angle of 30 degrees with the horrizonatal on one side of the roof. A raft er on the other side makes an angle of 70 degrees with the horizontal.calculate... more

question based on marbles

A boy has twice as many blue marbles as green ones. his friend gives him 60 green marbles and now he has the same number of green and blue marbles. find the number of green and blue marbles he had... more

07/06/18

Two step equations

187 in. long pipe is cut into three pieces such that the second piece is thirteen in. more than the first piece, and the third piece is twenty in. more than eight times the second piece.

07/06/18

Say you flip a coin seven times. What is the probability the number of heads will be even?

Say you flip a coin seven times. What is the probability the number of heads will be even? Please attach detailed description of how one gets to answer

don't understand

The probability that Janice runs is 6/10. The probability that she runs and bicycles is 4/15. Find the probability that Janice bicycles, given that she runs.

07/05/18

need help with this !

The probability that Sue will go to Costa Rica in the winter and to Italy in the summer is 0.35. The probability that she will go to Costa Rica in the winter is 0.75. Find the probability that she... more

If the first chapter of a certain book is 5 pages long and makes up 5% of the book, how many pages does the entire book have?

i need to know this i have been stuck on it for half an hour!

07/04/18

which mp3 player is cheaper

Two shops sell mp3 players for the same original price. Both shops have a sale. One mp3 player has 1/4 sale off the other has 1/3 sale off . Which mp3 player is cheaper ?

Find an nth degree polynomial function with real coefficients satisfying the given conditions.

n=4 -1,3 and 4+3i are zeros  f(1)=-216 f(x)=

07/04/18

More logarithms

Given log54=a and log34=b, express log21.8 in terms of a and b... So how do you get two different bases from only log21.8.. are you supposed to like separate them to log29 - log25 ?

interest rates

May Ling decided to invest $11,000 of her retirement fund conservatively. she invested part of this money into one account that pays 4% simple interest and part into another account that pays 3%... more

what is the 25th term of the arithmetic sequence 3,7,11,15,19

Using an=a1+(n-1)d

07/02/18

How to translate these expressions into equations?

Joe receives two dollars plus a dollar for each box he packs. Michael receives two dollars times the number of boxes her packs. Write an expression representing income for both Joe and Michael. How... more

Can you show me how to solve?

Ruth was hauling a wide load out of Portland. At 7:00 a.m. she headed north from exit 102 at an average speed of 35 mph. Micheal headed north from the same exit at 9:00 a.m. in his Pontiac. By 3:00... more

Please help me solve this problem for my alegbra homework.

A security fence encloses a rectangular area on one side of a park in a city. Three sides of fencing are used, since the fourth side of the area is formed by a building. The enclosed area measures... more

probability

A sample of 50 homeowners who recently hired a landscaping service yielded the following information about their landscaper.Number of HomeownersWould you Recommend Your Landscaper to a... more

Standard Normal Probability ANSWER CHECK

A group of retailers models that the amount of dollars X that an individual will spend in christmasshopping has a normal distribution with mean μ = $1100 and standard deviation σ = $330.... more

07/01/18

find the equation of set of points

I have set of points of (x,y) as follow -2000000    0.616,   -199700      1.742,   -63190         3.28,   -5631           8.130,   -1845           9.123,   -577             9.492,   0... more

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