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All Questions
+0
229722 Questions
0
204
1
number theory
If m and n are positive integers where m^2 + 14m - 32 = 2n^3 + 3, what is the value of m + n?
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Guest
Jul 13, 2022
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196
1
geometry
Griffin bakes a perfectly circular pizza with a diameter of 10 inches, and he sells is for 0.25 per square inch. What is the cost for the entire pizza? Express your answer to the nearest whole dollar.
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Guest
Jul 13, 2022
0
241
1
+140
Triangular Number
For a positive integer n , the nth triangular number is
For example, , so the third triangular number is 6.
Determine the smallest integer b > 2011 such that for some positive integer x.
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sherwyo
Jul 13, 2022
0
192
1
Algebra
There are constants a and b such that (x - a)/(x + b) = (x^2 - 80x + 1551)/(x^2 + 59x - 3036). What is a + b?
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Guest
Jul 13, 2022
0
224
1
+83
help
What is the smallest positive value of m so that the equation 10x^2-mx+420=0 has integral solutions?
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Atlas
Jul 13, 2022
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164
1
Math help
Alex is buying small prizes for a school carnival. He is at a store that sells small prizes for $0,42 each. The treasurer asked Alex to buy as many prizes as he can for $90, before tax. How many prizes can Alex purchase within that budget?
A.
read more ..
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Guest
Jul 13, 2022
0
188
1
Help
You and four friends have dinner at a local restaurant. The final cost of the meal is $90. If you want to leave a 20% tip, how much will you give the server? What is the final cost of the bill? If the meal is going to be split evenly, how much
read more ..
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Guest
Jul 13, 2022
0
114
0
Algebra
Jan and Jerome are mixing red paint with white paint to make pink paint, in the ratio of 4 parts red to 8 parts white. How many gallons of red paint shoud they mix with 1 gallon white paint? Express your answer as a common fraction.
read more ..
Guest
Jul 13, 2022
0
133
0
Function
For all complex numbers z,
let f(z) = z^2 if z is not real, f(z) = 2z if z is real.
Find f(f(f(f(1+i)))).
read more ..
Guest
Jul 13, 2022
0
205
3
help algebra
If the cube of a positive number is three times the square of the number times two, what is the number?
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Guest
Jul 13, 2022
0
202
1
plz help
Compute the sum
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Guest
Jul 13, 2022
0
120
0
Algebra
On a number line, what number is two-thirds of the way from 5/8 to 4/7? Express your answer as a common fraction.
Guest
Jul 13, 2022
0
212
1
Primes
What is the fewest number of consecutive primes, starting with 2, that when summed produce a number divisible by 8?
I tried 2, 2 + 3, 2 + 3 + 5, but it doesn't work.
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Guest
Jul 13, 2022
0
205
1
Algebra
Company A sells pencils in packs of 12 for 1.50. Company B sells pencils in packs of 20 for 2.00. What is the absolute different of the total costs to purchase 240 pencils from each company?
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Guest
Jul 13, 2022
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134
0
Number problem
In the equation 1/j + 1/k = 1/3 + 1/2, both j and k are positive integers. What is the sum of all possible values for k?
Guest
Jul 13, 2022
0
200
1
triangle
What is the area of the shaded triangle, shown here?
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Guest
Jul 13, 2022
Jul 12, 2022
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213
1
Sequence
A sequence is defined as shown for n = 3, 4, 5, ... What will be the first number in this sequence that is NOT prime?
a_1 = 11
a_2 = 2
read more ..
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Guest
Jul 12, 2022
0
209
2
What is the smallest value of that satisfies the equation ? Express your answer as a decimal.
What is the smallest value of that satisfies the equation ? Express your answer as a decimal.
CPhill
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Guest
Jul 12, 2022
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200
1
Number Theory
What is the smallest positive perfect cube divisible by 121?
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Guest
Jul 12, 2022
0
194
1
help the old answer was incorrect
Given that x+y=13 and xy=24, find the distance from the point (x,y) to the origin.
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Guest
Jul 12, 2022
0
251
1
Percent
Grapes are 80% water by weight. When a bushel of grapes dries in the sun for two weeks, it loses 60% of its total weight. All of the weight loss is due to the loss of water. After drying for two weeks, what percentage of the grapes is water by
read more ..
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Guest
Jul 12, 2022
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121
0
Algebra
The number a is 5 times as large as b. The sum of a and b is 18. What is the value of the product ab? Express your answer as a common fraction.
Guest
Jul 12, 2022
0
186
2
+10
Question
A right triangle with integer leg lengths is called cool if the number of square units in its area is equal to the number of units in the sum of the lengths of its legs. What is the sum of all the different possible areas of cool right triangles?
read more ..
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ChargedCreeper12345
Jul 12, 2022
0
335
1
Functions
The function f(x) has the property that if P and Q are any two distinct points on the graph of y = f (x), then the slope of PQ is equal to 1. What is the value of f(10) - f(0)?
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Guest
Jul 12, 2022
0
230
1
+10
Rationalizing Denominators Question
Rationalize the denominator of . With your answer in the form , and the fraction in lowest terms, what is ?
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ChargedCreeper12345
Jul 12, 2022
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