05/17/15

Paige jumped into the Savannah River to rescue her dog, Lance.
She was travelling with the current at 8 m/s when she realized that Lance was actually upstream. She turned around and started swimming at the same rate against the current and traveled at 3 m/s.... more
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05/17/15

standard deviation
 for a normal distribution with a mean of 80 and a standard deviation of 20. a. what percent values are between 40 and 120, b. what percent of values are less than 100 c. waht percnet of values... more
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05/16/15

rectangular form
I am given the following problem:   8∠120° + 4∠60°   I am given the following instructions: Add. Write answer in rectangular form. Round to one decimal place. Show steps. Use a scientific... more
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05/16/15

polynomial
During the first 13 sec of a jump, the number of feet that a skydiver falls in t seconds is approximated the polynomial.11.12t^2In 2009, 108 U.S. skydivers fell headfirst in formation from a height... more
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05/16/15

Kellogg Test Question
The subway train offers access to all twelve intersections downtown. If every intersection is .75 miles apart and the train travels at 20 mph and spends 45 seconds at every stop to unload and... more
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05/16/15

Contant Motion Word Problem
The speed of a moving walkway is about 2.5 ft/second. Walking on the moving walkway, it takes Karen a total of 40 seconds to travel 50 ft. with the movement of the walkway and then back against the... more
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05/16/15

Chemistry 2 Gas Laws Word Problems
A sample of ammonia gas occupies 20.4 mL at 558 mm Hg and 25.2oC. If the volume of the gas is changed to 56.8 mL at 55oC, what is the new pressure? Enter mm for unit. A sample of carbon monoxide... more
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05/16/15

Let L be the line y = 5-9x in R^2. Find vectors a and b so that v = a +tb is a parametric equation for L.
Stuck on this linear algebra question.
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05/16/15

polynomial
For the following polynomial: 6a^2-7+2a^8 What is the degree of each term. Determine the leading term and the leading coefficient. Determine the degree of the polynomial.
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05/16/15

polynomial expressions
what is the degree of the polynomial, -7x4+3x3-8x2+2x-7
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05/16/15

ABC Printing Company charges a $10.00 service fee plus $.02 per copy. Write and evaluate a function rule to find the Total cost of printing 20 copies.
y = mx + b    10.00 service fee   plus an additional .02 dollars per copy   How much would it cost to print 20 copies
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05/16/15

For the reaction : 4Fe+3O2-->2Fe2O3, if 100 g of Fe are used how much Fe2O3 are produced?
I'm having such a hard time with this..It's my physics HW and I don't know how to solve this.
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05/16/15

about sound waves
How fast (in m/s) is the Concorde moving if it reaches Mach 1.5? (The speed of sound in air is 344 m/s.)
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05/16/15

a biased die with faces numbered 1 to 6 is rolled once. the figures below give the probability
the figures below give the probability of obtaining each of the numbers on the die after a single roll. what is the probability of obtaining a 3 or 4. 1        2           3             4        ... more
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05/16/15

General Statistics
Answer the following questions:1. If 20% of the 20,000 UM-Flint students major in a humanity, how many humanities majors are there?2. Last year on UM-Flint’s campus there were 45 burglaries... more
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05/16/15

. What are the possible expressions for the dimensions of the cuboids whose volumes are given below? Volume : 3x2 – 12x Volume : 12ky2 + 8ky – 20k (i) (ii)
. What are the possible expressions for the dimensions of the cuboids whose volumesare given below?   1.Volume : 3x2– 12x   2.Volume : 12ky2+ 8ky – 20k
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05/15/15

system of equations by elimination
an accountant rides a bus part of the way to work everyday and walks the rest of the way. The bus averages 40mph, and the accountant walks a speed of 4mph. The distance from home to work is 27... more
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05/15/15

For a certain car traveling at x mph, its stopping distance d in feet is estimated by d=1÷9x^2 + 11÷3x.
Find the speed of the car (to the nearest mph) if it in a distance of 690 feet. 
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05/15/15

word problem
together steve and tom sold 126 raffle tickets for their school. Steve sold 4 more than three times as many raffle tickets as tom. How many raffle tickets did each boy sell?
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05/14/15

In a right triangle...
In a right triangle, tan θ= -5/12 and π/2 < θ < π. Which of the following is true?     a) sec θ= -13/12   b) sin θ= 5/13   c) csc θ= 13/5   d) cot θ= 12/5
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05/14/15

Determine which of the following does NOT represent an angle co terminal...
Determine which of the following does NOT represent an angle co terminal with the given angle θ= 5π/8?   a) -13π/8   b) 21π/8   c) 37π/8   d) -11π/8    
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05/14/15

please solve
one canned drink is 20% orange juice; another is 10% orange juice. How many liters of each should be mixed together in order to get 10L that is 15% orange juice?   how many liters of the 20%... more
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05/14/15

Find the numerical value of cos(x-y)
If sin x = -6/10, tan y = 4/5 and both angls lie in quad 3
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05/14/15

Solve for theta over the interval 0 to 360
5 sin theta + 5rad2=2rad2 
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05/14/15

help????????
This year, there are 26 students in Joe's class (it is a SMALL school). There are 20 boys, 8 students in Honors Math and 30% of the boys are in Honors Math. If one student is selected at random,... more
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