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Alan3354 answered: 30963 problems
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9-6 3/5
the book's answer key state that the correct answer is 2 2/5 but i get 3 2/5. Please help 1 solutions
Answer 405519 by Alan3354(30983) on 2012-09-04 15:07:52 (Show Source):
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Average/645542: i am looking to get to problems for my Algebraic connections class and i am a sub so i need questions and answers so i can give it to them ....
Like one step x+3=10 and show your work...also i need 2 step like 3x+4=16 and show your work... Can you help me out the more i have the better i will like it so my class will stay busy and in their seats...
Thanks so much
Durinda Willard 1 solutions
Answer 405516 by Alan3354(30983) on 2012-09-04 15:03:36 (Show Source):
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Divisibility_and_Prime_Numbers/645461: Read and answer each question.
1. What is the product of 5 and the sum of all the prime numbers that are less than 10?
2.What is the difference between the greatest prime number that is less than 60 and the least prime number?
3. Add all the prime numbers between 60 and 70. what is the sum?
4.What number represents the prime factorization. 2.2.2.7.3.3.3.5?
5.What is the prime factorization of the sum of all prime numbers between 40 and 50?
1 solutions
Answer 405475 by Alan3354(30983) on 2012-09-04 11:51:23 (Show Source):
You can put this solution on YOUR website!duplicate
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If you email via the Thank You note I'll help you if you need it.
These are problems you just "grind out," tho, and I don't need the practice.
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Quadratic_Equations/645451: sketch the graphs of hte line and the parabola on a single set of axes. find the coordinates of any points of interstctions by solving algebraically.
2x+y=10, y=9-x^2 1 solutions
Answer 405473 by Alan3354(30983) on 2012-09-04 11:48:57 (Show Source):
You can put this solution on YOUR website!sketch the graphs of hte line and the parabola on a single set of axes. find the coordinates of any points of interstctions by solving algebraically.
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dl the FREE graph software at
http://www.padowan.dk
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2x+y=10, y=9-x^2
---
2x + (9-x^2) = 10
x^2 - 2x + 1 = 0
x = 1, x = 1
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--> (1,8) the only intersection point.
The line is tangent to the parabola
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Travel_Word_Problems/645452: If a car was to travel a distance of 180km at a speed of 60km/h, how long would this take? I know the formula is Time = Distance divided by Speed, but i did this and i got 3 minutes...surely this can't be right?... 1 solutions
Answer 405469 by Alan3354(30983) on 2012-09-04 11:20:26 (Show Source):
You can put this solution on YOUR website!If a car was to travel a distance of 180km at a speed of 60km/h, how long would this take? I know the formula is Time = Distance divided by Speed, but i did this and i got 3 minutes...surely this can't be right?...
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The speed is km/hr, not km/minute
--> 3 hours.
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t = d/r = 180 km/60 km/hr
t = 3/(1/hr) = 3 hrs
Include the units in your calculations, it will improve the chances of getting it right.
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Inequalities/645419: 54.000/12=4500
8%=0.08
0.08*4500=360
360-100=260
How do I write this as an inequality? Car payments. As a rule of thumb, debt payments (other than mortgages) should be less than 8% of a consumer’s monthly gross income. Oliver makes $54,000 a year and has a $100 student-loan payment every month. What size car payment can he afford?
Divide 54,000 by 12 which will =4,500 Take 8%turn it into a decimal 0.08and multiply 4500=$360 then subtract the student loan $360-$100=$260
Oliver can afford a $260 car payment. 1 solutions
Answer 405467 by Alan3354(30983) on 2012-09-04 11:17:17 (Show Source):
You can put this solution on YOUR website! 54.000/12=4500
8%=0.08
0.08*4500=360
360-100=260
How do I write this as an inequality? Car payments. As a rule of thumb, debt payments (other than mortgages) should be less than 8% of a consumer’s monthly gross income. Oliver makes $54,000 a year and has a $100 student-loan payment every month. What size car payment can he afford?
Divide 54,000 by 12 which will =4,500 Take 8%turn it into a decimal 0.08and multiply 4500=$360 then subtract the student loan $360-$100=$260
Oliver can afford a $260 car payment.
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You have it right, unless Oliver has other debts he didn't disclose.
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Triangles/645439: if one acute angle in a right angled triangle is double the other then prove that the hypotenuse is double the shortest side 1 solutions
Answer 405460 by Alan3354(30983) on 2012-09-04 10:35:12 (Show Source):
You can put this solution on YOUR website!if one acute angle in a right angled triangle is double the other then prove that the hypotenuse is double the shortest side
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It's the 30-60-90 triangle.
sin(30) = 0.5 --> a/c = 0.5
c = 2a
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Polynomials-and-rational-expressions/645440: Don't remember how to do these word problems. But the height is also giving me a trouble.
If a stone is tossed from the top of a 350 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 350, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundredth’s place; include units in your answer. 1 solutions
Answer 405452 by Alan3354(30983) on 2012-09-04 10:09:51 (Show Source):
You can put this solution on YOUR website!If a stone is tossed from the top of a 350 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 350, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundredth’s place; include units in your answer.
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h(t) = -9.8t2 – 10t + 350
At impact, h(t) = 0
-9.8t2 – 10t + 350 = 0
Solve for t, ignore the negative solution.
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h(t) = -9.8t2 – 10t + 350 might be true somewhere, but on Earth it's
h(t) = -4.9t^2 – 10t + 350, not -9.8
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Polynomials-and-rational-expressions/645268: can someone show me how to go about graphing this parabola y=3/4x^2. i do know that is will open upward. 1 solutions
Answer 405413 by Alan3354(30983) on 2012-09-03 21:56:12 (Show Source):
You can put this solution on YOUR website!can someone show me how to go about graphing this parabola y=3/4x^2
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Same as most.
Pick values for x and find y.
Plot the points.
Draw a curve thru them.
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x = 0, y = 0 --> (0,0)
x = 1, y = 0.75 --> (1,0.75)
Notice that +x and -x give the same y.
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Use Excel to make a table of points.
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Even better,
dl the FREE graph software at
http://www.padowan.dk
Click Insert, enter 3x^2/4
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Travel_Word_Problems/645229: Micheal drove to a friends house at a rate of 40 mi/h. He returned by the same route at a rate of 45 mi/h. The driving time for the round trip was 4 h. What is the distance Michael traveled. 1 solutions
Answer 405399 by Alan3354(30983) on 2012-09-03 21:13:10 (Show Source):
You can put this solution on YOUR website!Micheal drove to a friends house at a rate of 40 mi/h. He returned by the same route at a rate of 45 mi/h. The driving time for the round trip was 4 h. What is the distance Michael traveled.
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Avg speed for the round trip = 2*40*45/(40+45) = 3600/85 mi/hr
Avg speed = 720/17 mi/hr
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d = r*t
d = (720/17)*4 = 2880/17 miles round trip
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Travel_Word_Problems/645232: For the first 5 miles of a 10-mile race, Joshua's rate was 10 mph. for the last 5 miles, his rte slowed to 8 mph. How long it take for Joshua to complete the race? 1 solutions
Answer 405398 by Alan3354(30983) on 2012-09-03 21:10:04 (Show Source):
You can put this solution on YOUR website!For the first 5 miles of a 10-mile race, Joshua's rate was 10 mph. for the last 5 miles, his rte slowed to 8 mph. How long it take for Joshua to complete the race?
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His avg speed for the 10 miles = 2*10*8/(10+8) = 80/9 mi/hr
d = r*t
t = d/r = 10/(80/9) = 9/8
t = 1.125 hours
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Trigonometry-basics/645035: A tire is rotating 900times per min. Through how many degrees does a point on the edge of a tire move in 1/3 seconds?
1 solutions
Answer 405390 by Alan3354(30983) on 2012-09-03 20:02:19 (Show Source):
You can put this solution on YOUR website!A tire is rotating 900times per min. Through how many degrees does a point on the edge of a tire move in 1/3 seconds?
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900 rev/min = 15 rev/sec
--> 5 rev in 1/3 second
= 1800 degrees
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For all points on the tire (except the center), not just a point on the edge.
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Problems-with-consecutive-odd-even-integers/644996: Problem: "Using the numbers 9, 8, 7, 6, 5, and 4, once each. Find the smallest (positive) difference."
Through the guess and check method, I've tried every single combination possible. I even made a list of all the possible combinations and haven't found a solution. The answer to the problem (according to the textbook) is 47. The smallest I've found is 53 using 748-695.
Thanks! 1 solutions
Answer 405333 by Alan3354(30983) on 2012-09-03 15:35:58 (Show Source):
You can put this solution on YOUR website!Problem: "Using the numbers 9, 8, 7, 6, 5, and 4, once each. Find the smallest (positive) difference."
Through the guess and check method, I've tried every single combination possible. I even made a list of all the possible combinations and haven't found a solution. The answer to the problem (according to the textbook) is 47. The smallest I've found is 53 using 748-695.
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745 - 698 = 47
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test/644908: Simplify the radical. Assume that the variable represents a positive real number
(a^3/729)^1/3
9/a
a^1/3 /9
a^3/9
a/9
Is the answer a^3/9 right? Thank you 1 solutions
Answer 405313 by Alan3354(30983) on 2012-09-03 13:07:41 (Show Source):
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