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Post New Question
All Questions
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230858 Questions
0
396
1
help please
Given that , find .
When your answer is in the form , where A, B, and C are integers, and B is not divisible by the square of a prime, what is |A|+|B|+|C|?
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Guest
May 30, 2021
0
315
1
Polynomials
Find the constant coefficient when the polynomial 3(x - 4) + 2(x^2 - x + 7) - 5(x - 1) - 3(x^3 - 7x^2 + 5x - 1) + 2(x - 4) is simplified.
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Guest
May 30, 2021
0
276
1
Algebra
Suppose
x/(x^3 - x^2 - 21x + 45) = A/(x + 5) + B/(x - 3) + C/(x - 3)^2
read more ..
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Guest
May 30, 2021
0
290
1
Hard Question
Let and be nonzero complex numbers such that
a = (b+c)/(x-2)
b = (c+a)/(y-2)
c = (a+b)/(z-2)
xy + yx + xz = 67
read more ..
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Guest
May 30, 2021
0
257
1
Algebra
If x + y = 9 and xy = 10 - x^2 - y^2, what is the value of x^3 + y^3?
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Guest
May 30, 2021
0
404
3
help!
Evaluate the sum
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Guest
May 30, 2021
0
326
1
Algebra
Let be the set S of all real numbers $\alpha$ such that the function
\[\frac{x^2 + 5x - \alpha}{x^2 - 7x - 44}\]
can be expressed as a quotient of two linear functions. What is the sum of the elements of S?
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Guest
May 30, 2021
0
400
1
We roll a fair 6-sided die 5 times. What is the probability that we get an odd number in exactly 4 of the 5 rolls?
We roll a fair 6-sided die 5 times. What is the probability that we get an odd number in exactly 4 of the 5 rolls?
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Guest
May 30, 2021
0
308
1
pascal's triangle
Let f(n) be the base-10 logarithm of the product of the elements of the nth row in Pascal's triangle. Find f(10),
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Guest
May 30, 2021
0
339
1
Number Theory
Let n be a positive integer and let k be the number of positive integers less than 2^n that are invertible modulo 2^n. If 2^n = 5 (mod 15), then what is the remainder when k is divided by 15?
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Guest
May 30, 2021
0
341
1
probability question
In the SmallState Lottery, three white b**lls are drawn (at random) from twenty b**lls numbered 1 through 20, and a blue SuperBall is drawn (at random) from ten b**lls numbered 21 through 30. When you buy a ticket, you select three numbers from 1-20 and
read more ..
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Guest
May 30, 2021
+1
411
1
+273
HeLp!
If , then find t.
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TheEarlyMathster
May 30, 2021
0
350
2
help
Suppose that a, b, and c are real numbers for which and a
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Guest
May 30, 2021
0
328
1
Exponents
The function f(x) = ax^r satisfies f(2) = 1 and f(32) = 16. Find r.
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Guest
May 30, 2021
0
303
1
Quadratic
If we express 3x^2-6x-2+5x^2-2x-3 in the form a(x-h)^2+k what is a+h+k
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Guest
May 30, 2021
0
341
1
Algebra
Marina solved the quadratic equation 9x^2-18x-720=8x^2-15x-640 by completing the square. In the process, she came up with the equivalent equation (x+r)^2 = s,where r and s are constants. What is s?
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Guest
May 30, 2021
0
330
1
Number Theory
We have positive integers a, b, and c such that a > b > c. When a, b, and c are divided by 19, the remainders are 4, 2, and 16 respectively. When the number 2a + b - c is divided by 19, what is the remainder?
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Guest
May 30, 2021
0
363
1
Solve for to four decimal places:
Solve for to four decimal places:
.
.
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Guest
May 30, 2021
0
671
1
question
he positive integers from 1 to 150 inclusive are placed in a 10 by 15 grid so that each cell contains exactly one integer. Then the multiples of 3 are given a red mark, the multiples of 5 are given a blue mark, and the multiples of 7 are given a green mark.
read more ..
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Guest
May 30, 2021
0
367
1
number theory
For how many ordered pairs (A,B) where A and B are positive integers is $AAA_7 + BBB_7 = 444_7$?
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Guest
May 30, 2021
0
289
1
algebra
What is
a/2 + a²/2a ?
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Guest
May 30, 2021
0
420
1
help algebra
The graph of y = (x^2 - 9)/(x^2 - 5x + 2) has a horizontal asymptote at y = a. What is a?
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Guest
May 30, 2021
0
337
2
coordinates
Three of the four vertices of a rectangle are (5,11), (6,11) and (16,-2). What is the area of the intersection of this rectangular region and the region inside the graph of the equation (x - 5)^2 + (y + 2)^2 = 16? Express your answer as
read more ..
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Guest
May 30, 2021
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