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Post New Question
All Questions
+0
237680 Questions
0
401
1
Coordinates
Find the area of the region satisfying the inequality x^2 + y^2 <= 4x + 6y + 73.
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Guest
Jul 26, 2021
Jul 25, 2021
0
484
3
C&P problem
Two cards are dealt at random from a standard deck of 52 cards. What is the probability that the first card is a $\diamondsuit$ and the second card is an ace?
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Guest
Jul 25, 2021
0
519
1
Coordinates
Find the y-intercept of the graph
x^2 - 10x + y^2 - 10y + 25 = -11 + 2y.
Write your answer as an ordered pair.
read more ..
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Guest
Jul 25, 2021
0
482
1
Coordinates
The equation x^2 + 6x + y^2 + 6y = 78 represents a circle. What is its center? Write your answer as an ordered pair.
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Guest
Jul 25, 2021
0
401
1
Help graphing
The graph of y=f(x) is shown below in red. For which x value does f(x)=4?
(Assume grid lines are spaced 1 unit apart)
read more ..
ElectricPavlov
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Guest
Jul 25, 2021
0
339
1
help
Let f(x)=|x+1|−|2x−3|+|x+2|.
Find the smallest and largest possible values of f(x).
Solve the equation f(x)=0.
Solve the inequality |f(x)|≤1
read more ..
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Guest
Jul 25, 2021
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373
0
+24
help please
Question:
hendy
Jul 25, 2021
0
457
3
+24
HELP PLS
The question is attached to the image.
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hendy
Jul 25, 2021
0
589
1
+41
HELP!!!!
The values of a function $f(x)$ are given below: \begin{tabular}{|c||c|c|c|c|c|} \hline $x$ & 3 & 4 & 5 & 6 & 7 \\ \hline $f(x)$ & 10 & 17 & 26 & 37 & 50 \\ \hline \end{tabular}Evaluate $f^{-1}\left(f^{-1}(50)\times
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CENTTRAL
Jul 25, 2021
0
493
3
reposting because the other answer was incorrect
While staying in a 15-story hotel, Polya plays the following game. She enters an elevator on the $6th$ floor. She flips a fair coin five times to determine her next five stops. Each time she flips heads, she goes up one floor. Each time she flips tails,
read more ..
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Guest
Jul 25, 2021
0
429
1
help plz
Expand the product (x - 2)^2 (x + 2)^3. What is the product of the nonzero coefficients of the resulting expression, including the constant term?
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Guest
Jul 25, 2021
0
612
3
plz help!!!
What is the remainder when the sum $1 + 7 + 13 + 19 + \cdots + 253 + 259$ is divided by $6$?
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Guest
Jul 25, 2021
0
480
2
geometry
Point Y lies on line segment XZ such that XY = 2 and YZ = 8. Semicircles are constructed with diameters XY, XZ, and YZ. Find the area of the blue region.
read more ..
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Guest
Jul 25, 2021
0
405
1
help plz
What is the sum of all possible values of x such that 2x(x - 10) - x(x - 5) = -50?
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Guest
Jul 25, 2021
0
391
1
quadratic
The equation x^2 + ax = -14 - 6 - 8x has only integer solutions for x. If a is a positive integer, what is the greatest possible value of a?
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Guest
Jul 25, 2021
0
413
1
Precalc
In ABC , cos B = 3/25 and angle A is 90 degrees. What is cos C?
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Guest
Jul 25, 2021
0
338
1
I’ve been stuck for a long time
Evaluate \[\sum_{n = 0}^\infty \frac{\cos n \theta}{2^n},\]where $\cos \theta = \frac{1}{5}.$
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Guest
Jul 25, 2021
0
315
1
Number Theory
If x and y are positive integers for which 3x + y + xy = 115, then what is x + y?
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Guest
Jul 25, 2021
0
469
1
Parabola
Find the equation whose graph is a parabola with vertex (2,4), vertical axis of symmetry, and contains the point (-1,-1). Express your answer in the form "ax^2 + bx + c".
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Guest
Jul 25, 2021
0
341
1
Probability
While staying in a 15-story hotel, Polya plays the following game. She enters an elevator on 6th the floor. She flips a fair coin five times to determine her next five stops. Each time she flips heads, she goes up one floor. Each time she flips tails, she
read more ..
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Guest
Jul 25, 2021
0
317
1
Coordinates
The area of equilateral triangle inscribed in the circle x^2 + y^2 - 4x + 12y + 1 = 0 is of the form a*sqrt(b)/c.
Find a + b + c.
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Guest
Jul 25, 2021
0
420
1
help counting
How many of the natural numbers from 1 to 800 inclusive, contain the digit 6 at least once?
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Guest
Jul 25, 2021
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