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225611 Questions
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161
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Number Theory
Given that a is a multiple of 456, find the greatest common divisor of 3a^3 + a^2 + 4a + 57
Guest
Jan 24, 2022
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179
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Geometry
Let T be a point inside square EFGH such that TE = sqrt(6), TF = 2*sqrt(3), and TG = . Find angle ETF, in degrees.
Guest
Jan 24, 2022
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407
1
What is the square of the imaginary part of the center of the circle with the equation |z-i|/|z-1|=3
What is the square of the imaginary part of the center of the circle with the equation
|z-i|/|z-1|=3
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Guest
Jan 24, 2022
0
225
1
fractions
Karly is making a new dance outfit. She needs 2 ½ yards of fabric for the shawl. She needs 1 ¾ yards of fabric for the dress. If she has 3 yards of fabric, how much more does she need. If each yard of fabric costs $7.98, how much
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Guest
Jan 24, 2022
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592
1
Karly is making a new dance outfit. She needs 2 ½ yards of fabric for the shawl. She needs 1 ¾ yards of fabric for the dress. If she has 3
Karly is making a new dance outfit. She needs 2 ½ yards of fabric for the shawl. She needs 1 ¾ yards of fabric for the dress. If she has 3 yards of fabric, how much more does she need. If each yard of fabric costs $7.98, how much
read more ..
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Guest
Jan 24, 2022
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200
1
Logarithms and Exponents...
I know the domain and range for . However, I don't completely understand how that was achieved. Can someone please help me?
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Guest
Jan 24, 2022
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223
2
Quadratic
What is the maximum value of 4(x + 7)(12 - x)?
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Guest
Jan 24, 2022
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230
1
Quadratic
When the expression -2x^2 - 10x - 83 is written in the form a(x + d)^2 + e , where a, d, and e are constants, then what is the sum a + d + e?
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Guest
Jan 24, 2022
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227
1
Quadratic
If we express 6x^2 - 2x - 3 in the form a(x - h)^2 + k, then what is a + h + k?
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Guest
Jan 24, 2022
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218
2
Quadratic
The quadratic x^2 - 8x + 66 can be written in the form (x + b)^2 + c, where b and c are constants. What is b + c?
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Guest
Jan 24, 2022
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179
1
Help please
Let ABCDEFGH be a rectangular prism, where EF=4, EH=5, and EA=6. Find the volume of pyramid CFAH.
I know that this has already been answered somewhere else, but I want the answer as a radical or fraction.
Thanks!
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Guest
Jan 24, 2022
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168
1
Pls help thanks in advance!
18 boys and 9 girls shared some sweets equally. Each boy gave 1/4 of his sweets to the girls. As a result, each girl received 12 more sweets than each boy. Find the total number of sweets shared at first.
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Guest
Jan 24, 2022
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208
1
Algebra
If f(0) = 0, f(1) = 2, f(2) = 9, and ax^2+bx+c=0, what is the value of f(3)?
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Guest
Jan 24, 2022
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208
1
Polynomial
What is the coefficient of x^3 when 24x^4 + 6x^3 + 4x^2 + 7x - 5 is multiplied by 6x^3 + 3x^2 - 3x + 4 and the like terms are combined?
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Guest
Jan 24, 2022
0
229
1
Proportion
The value of y varies inversely as x^2 and when x = 24, y = 15 . What is x when y =?
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Guest
Jan 24, 2022
0
352
1
Consider the following 8 numbers, where one labelled x is unknown. 14, 28, 28, x, 36, 6, &
Consider the following 8 numbers, where one labelled x is unknown.
14, 28, 28, x, 36, 6, 4, 50
Given that the range of the numbers is 59, work out 2 values of x.
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Guest
Jan 24, 2022
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204
1
+82
Absolute value function question
The function f(x) < 0 when -2 < x < 1. Which of the following is true about the function |f(x) | ?
a) |f(x) | = - f(x) when -1 < x < 2
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JuliaJ5
Jan 24, 2022
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207
1
Quadratic
The amount of money a certain company makes can be represented by the graph y = x^2 - 18x - 33 , where x is the quantity produced. What is the smallest quantity at which the company can produce to break even or make a profit?
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Guest
Jan 24, 2022
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237
1
Function
The function f is defined by f(n) = f(n − 1) + f(n − 2). It is also true that f(1) = 3 and f(2) = 10. What is the value of f(6)
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Guest
Jan 24, 2022
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262
3
Help counting
The product of the digits of 3214 is 24. How many distinct four-digit positive integers are such that the product of their digits equals 24?
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Guest
Jan 24, 2022
+1
303
6
+23
Question! Please Help!
Hi friends! Recently, I've been working on many mock MATHCOUNTS sessions and found myself stuck on this question:
Find the least positive integer b such that the value of the expression (4b + 9)(6b + 13) is a perfect
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DreamingFox1214
Jan 24, 2022
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244
1
If two triangles are similar, then the lengths of corresponding medians are in the same ratio as the lengths of corresponding sides.
Must be proven algebraically.
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Guest
Jan 24, 2022
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205
1
Algebra
Find all solutions to the equation 6x^2 - 31x + 42 = 0. If you find more than one, then list the values separated by commas. If the solutions are not real, then they should be written in a + bi form.
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Guest
Jan 24, 2022
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236
1
Proportions
The value of y varies inversely as x^2 and when x = 24, y = 15 . What is x when y = 13?
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Guest
Jan 24, 2022
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