08/14/18

Doug entered a canoe race. He rowed 3 1/2 miles in 1/2 hour. What is his average speed in miles per hour?
I tried solving this question but it never came up right.
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08/14/18

Math problem
 define variables, write an equation, and then use the equation in the solving process.projectile is thrown upward so that its distance, in feet, above the ground after t seconds is h= -10t2... more
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08/14/18

Express the function y = \sqrt{ x^2 + 4 } as a composition y = f(g(x)) of two simpler functions y = f(u) and u = g(x)
f(U)=? g(x)=?
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08/14/18

A fellow walks a half-mile in 7.5 minutes, how fast does he walk in mph? In m/s?
Train track method 
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08/14/18

Sipan has a big tree home, he wonders how big the radius is on the trunk if the trunk is 1,5 cm long
This word problem is geometry and I think the trunk is a cylinder 
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08/14/18

Math problem
how to solve:   a) D[e2x cos(3x)]   b) du(t) / dt, when m(t)= In(t/t0)2   c) m, when m(t)= In(t/t0)2    
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08/14/18

Finding the Total Volume of several boxes
What is the total volume (in meters cubed) of 21 boxes, each one with the measurement of 47cm x 32cm x 26cm? 
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08/14/18

With four dice is it easier to roll 4 of a kind or 4 different ones?
I have an argue with my friend. I say its harder to roll four of a kind, but i cant explain my logic. Please help me figure this out.
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08/13/18

The height of a right triangle is 3 feet more than twice the length of its base. Express the area of the triangle as a function of the length of its base, x, in
I have been having trouble with this problem 
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08/13/18

If 3 kids share 1/2 pound of peanuts how much will each kid get.
3 kids sharing half pound of peanuts how much will each get
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08/13/18

How to write the equation out step by step
You order two servings of pancakes and a fruit cup. The cost of the fruit cup is $1.50. You leave a 15% tip. Your total bill is $11.50. How much does one serving of pancakes cost?  
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08/13/18

What is the answer to Ax+b=c
What is the non zero constant answer to the equation ax+b=c.
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08/13/18

How to solve 2+5×10
It's a brain teaser we are debating. If no parentheses are present how would it be solved
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08/13/18

2) Solve each system by either substitution or the addition method. Identify which method you are using. a.

-2x+y=1 x=5y-14
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08/13/18

find the two numbers whose sum is 13 and whose product is 40
 what is the answer
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08/13/18

parabola with vertex (0,8) and focus (0,9)
write the equation in vertex form for the parabola with vertex (0,8) and focus (0,9)  
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08/12/18

A positive integer is 3 less than another. If the sum of the reciprocal of the smaller and twice the reciprocal of the larger is 9/20,
find integers  
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08/12/18

38+2×=150 what's the answer and how to show why the answer
Pemdas stuck
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08/12/18

The tangent to the curve y=ax^4 at the point (3,b) has a gradient of 2. Find a and b.
Please help
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08/12/18

A ball is thrown a
A ball is thrown up at a velocity 10 m/s from the top of tower,495 m high . Find the  A velocity  b time taken to reach the ground  
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08/12/18

Find the convergence of Σ(√(n²*²+1) - √(n²*²-1))
Yet another hard nut for me to crack. This one could be a bit lenghty, if I'm at least half right.
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08/10/18

Is the series (2/3.4)+(2.4/3.5.6)+(2.4.6/3.5.7.8) converging?
Is there any way to change that into terms of a single variable, so that I can use a suitable convergence test?
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08/08/18

A moving company charges $0.60 per pound for a move from New York to Florida. A family estimates that their belongings weigh about 6 tons. About how much would
A moving company charges $0.60 per pound for a move from New York to Florida. A family estimates that their belongings weigh about 6 tons.A moving company charges $0.60 per pound for a move from... more
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08/08/18

how fast is each car traveling?
Two cars start off 800 miles apart. They begin driving towards one another, with one car going 20 miles per hour faster than the other. If it takes 4 hours for the two cars to meet, how fast is... more
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08/08/18

If the car travels for 20 seconds at high speed and then 29 seconds at low speed, what distance would the car have traveled?
Roberto's toy car travels at 35 centimeters per second (cm/sec) at high speed and 25 cm/sec at low speed. If the car travels for 20 seconds at high speed and then 29 seconds at low speed, what... more
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