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Post New Question
All Questions
+0
234927 Questions
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390
2
Algebra
Find z for which
\[\frac{2 \sqrt{z} - 3}{\sqrt{z} - 1} + 1 = \frac{3 \sqrt{z} - 1}{1 - \sqrt{z}}.\]
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Guest
Oct 8, 2021
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228
0
Help math
A non-square rectangle has integer dimensions. The number of square units in its area is four times the number of units in its perimeter. What is the smallest possible length for the perimeter?
Guest
Oct 8, 2021
0
226
0
System
For a certain value of k, the system
3a + 4b = 7,
6a + 4b = k - 3a - 8b
read more ..
Guest
Oct 8, 2021
0
333
1
Algebra
Solve for x: (3x + 12)/(x + 4) = (4x^2 + 5x + 8x^2)/(2x)
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Guest
Oct 8, 2021
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199
0
Algebra
Let r and s be the roots of y^2 - 19y + 9. Find (r-2)(s-2).
Guest
Oct 8, 2021
0
264
1
Coordinates
Let X, Y, and Z be points such that XZ/ZY = ZY/XY = 1/2. If Y = (1, 7), Z = (-7, -9), then what is the sum of the coordinates of X?
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Guest
Oct 8, 2021
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432
2
Precalculus. Please help me.
A community bird-watching society makes and sells simple bird feeders to raise money for its conservation activities. The materials for each feeder cost $4, and the society sells an average of $24 per week at a price of $8 each. The society has been considering
read more ..
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Guest
Oct 8, 2021
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269
1
Algebra
What is sqrt(2)*sqrt(6)*sqrt(110)*sqrt(169)?
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Guest
Oct 8, 2021
0
286
1
help polynomial
Let f(x) = x^4-3x^2 + 2 and g(x) = 2x^8 - 6x^2 + 2x -1. Let a be a constant. What is the largest possible degree of f(x) + a* g(x)?
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Guest
Oct 8, 2021
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263
1
Calculus help
I have a pool with a rectangular base. The pool's width is two times the depth and its length is three times the depth. I roughly estimate the depth to be 2 m. If my estimate has an error of 5 cm, approximately what is the maximum volume of water (in cubic
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Guest
Oct 8, 2021
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233
0
Coordinates
The lines -2x + y = k and 0.5x + y = 14 intersect when x = -8. What is the value of k?
Guest
Oct 8, 2021
0
254
1
plz help
Every musician in the band plays either the fife or the drum (but not both). The ratio of fifers to drummers is 7 : 1. If 2 drummers join the group and 6 fifers quit, the ratio of fifers to drummers would be 3 : 1. How many musicians were in the original
read more ..
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Guest
Oct 8, 2021
0
378
1
+24
Find DF
E is a point on side CD of square ABCD such that DE = 2 and EC = 5. The extensions of line AD and line BE and intersect at F. Find DF
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genericnamealias
Oct 8, 2021
0
274
1
Algebra
The sum 1^2 + 2^2 + 3^2 + ... + n^2 = n(n + 1)(2n + 1)/6.
What is the value of 21^2 + 22^2 + 23^2 + ... + 40^2 + 41^2 + 42^2?
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Guest
Oct 8, 2021
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253
0
Math
Buns are sold in a packs of 8 and hot dogs are sold in packs of 12. What is the least number of hot dogs you can make if you don’t want any leftovers? How many packs of each should you buy? If you are holding a party and you expect between 80 and 100 people,
read more ..
Guest
Oct 8, 2021
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203
0
help please!!!
graph the above story problem equation d(x) = 32 x , where f(x) is the distance in miles traveled by the car, and x is the number of gallons consumed by the car. You may make a table if that helps --> remember y = d (x). Now answer the multiple choice
read more ..
Guest
Oct 8, 2021
Oct 7, 2021
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230
0
Help PLEASE
Jamie's office recycled a total of 10 kilograms of paper over 2 weeks. After 3 weeks, how many kilograms of paper will Jamie's office have recycled? Solve using unit rates.
Guest
Oct 7, 2021
0
259
0
Probability
There are 3 math clubs in the school district, with 5, 7, and 8 students respectively. Each club has two co-presidents. If I randomly select a club, and then randomly select three members of that club to give a copy of Introduction to Counting and
read more ..
Guest
Oct 7, 2021
0
251
2
Probability
The digits from 1 to 6 are arranged to form a six-digit multiple of 5. What is the probability that the number is greater than 550,000? Express your answer as a common fraction.
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Guest
Oct 7, 2021
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432
2
+54
maf
Two ice skaters stand together as illustrated in Figure (a) below. They "push off" and travel directly away from each other, the boy with a velocity of v = 0.470 m/s to the left. If the boy weighs 721 N and the girl
read more ..
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Evanumber001
Oct 7, 2021
0
358
1
+54
losing it on this question
A man pushes a lawn mower on a level lawn with a force of 186 N. If 43% of the force is directed horizontally, how much work is done by the man in pushing the mower 7.2 m?
If you could solve the question
read more ..
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Evanumber001
Oct 7, 2021
0
261
1
Counting
How many positive whole numbers have cube roots that are less than 10 but greater than 5?
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Guest
Oct 7, 2021
0
274
1
Help simplify
Simplify $\sqrt[3]{x \sqrt[3]{x}}$. Express your answer in simplest radical form in terms of x.
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Guest
Oct 7, 2021
0
360
1
alysia
what is 20 x 3 1/2 pls my math is so horrible pls & thank u
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Guest
Oct 7, 2021
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