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Post New Question
All Questions
+0
230863 Questions
0
303
1
Algebra
a and b are real numbers and satisfy a*b^2 = 27/5 and a^2*b = 1080. Compute a + 5b.
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Guest
Sep 2, 2021
0
1047
1
What two rational expressions sum to 4x+1/x^2−4x−12?
What two rational expressions sum to 4x+1/x^2−4x−12?
Enter your answer by filling in the boxes. Enter your answer so that each rational expression is in simplified form.
read more ..
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Guest
Sep 2, 2021
0
231
1
help digits
The sum of the digits of a certain two digit nuber is 12. when you reverse its digits you increase the number by 18.find the number
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Guest
Sep 2, 2021
0
238
1
Function
Suppose that f(x) and g(x) are functions on $\mathbb{R}$ such that the range of f is [-5,3], and the range of g is $[-1,1]$. The range of f(x) + g(x) is [a,b]. What is the largest possible value of b?
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Guest
Sep 2, 2021
0
223
1
help with line
A line passes through the points (-3,-5) and (8,7). The equation of this line can be expressed in the form Ax + By = C, where A, B, and C are integers with greatest common divisor 1 and A is positive. Find A + B + C.
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Guest
Sep 2, 2021
0
233
1
Coordinates
A line passes through the points (-3,-5) and (6,-1). The equation of this line can be expressed in the form Ax + By = C, where A, B, and C are integers with greatest common divisor 1, and A is positive. Find A + B+ C.
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Guest
Sep 2, 2021
0
332
2
+140
Counting & Probability
In how many ways can 6 distinct beads be placed on a bracelet? (Note that two arrangements are the same if one can be rotated or reflected to produce the other.)
Post with explanation please.
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sherwyo
Sep 2, 2021
0
354
1
+140
Number Theory
Let return the number of distinct ordered pairs of positive integers such that for each ordered pair, . Note that when , , and are distinct. What is the smallest positive integer for which .
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sherwyo
Sep 2, 2021
0
236
1
precalc
How many values of x with 0 <= x <= 630 degrees satisfy sin x=-0.73?
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Guest
Sep 2, 2021
0
172
0
help counting
How many ways are there to divide a group of 6 friends among the basketball team, the soccer team, the baseball team, and the track team? (Each team could have anywhere from 0 to 6 of the friends on it. Assume the friends are distinguishable.)
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Guest
Sep 2, 2021
0
231
1
Squares
The sum of the squares of two positive numbers is 41 and the difference of the two squares of the numbers is 9. Find the numbers.
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Guest
Sep 2, 2021
0
301
0
What is the sum of 7x/x^2-4 and 2/x+2
What is the sum of 7x/x^2-4 and 2/x+2
Guest
Sep 2, 2021
0
264
1
Whaich statemnt describes if there is an extraneous solution to the equation sqrt(x-3)=x-5
Whaich statemnt describes if there is an extraneous solution to the equation sqrt(x-3)=x-5
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Guest
Sep 2, 2021
0
212
1
Probability
Suppose you have a bag that contains 2 black and 8 striped marbles. You select one marble, replace it, and then select another. Find the probability that you will select two black marbles in a row.
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Guest
Sep 2, 2021
0
213
1
counting
A standard six-sided die is rolled 6 times. You are told that among the rolls, there was one 1, 2 two 's, two three 's, and one four. How many possible sequences of rolls could there have been?
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Guest
Sep 2, 2021
+1
236
1
Geometry
In rectangle ABCD, shown here, $\overline{CE}$ is perpendicular to $\overline{BD}$. If BC = sqrt(2) and DC = 3, what is CE?
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Guest
Sep 2, 2021
0
240
3
3d Geo
A circle of radius 12 is cut out of a piece of paper. A 90 degree sector is then cut from this circle. This 90 degree sector is rolled into a cone. What is the volume of the cone?
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Guest
Sep 2, 2021
0
358
1
help probability
Consider the 20 points of a 4×5 grid. You randomly choose two points from the 20 points. What is the probability that the two points belong to a horizontal or vertical line?
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Guest
Sep 2, 2021
+1
228
1
Geometry
A circle has a radius of 10. A chord of distance 18 is drawn inside the circle. What is the distance from the center of the circle to the chord?
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Guest
Sep 2, 2021
0
400
1
+120
Fractions
There were 3/5 as many children as adults on a bus. At the next stop, 3 children boarded and 2 adults alighted from the bus. Then, there were 5/6 as many children as adults on the bus. How many children were there on the bus at first ?
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florianmanteyw
Sep 2, 2021
0
356
2
+85
Complex Numbers
Let be a complex number such that
Find all possible values of
List all possible values, separated by commas.
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FeedMePi
Sep 2, 2021
-1
391
7
+151
Nice job ignoring
https://web2.0calc.com/questions/math_21751
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Ajdabegano
Sep 2, 2021
0
229
1
Algebra
Find the smallest positive integer b for which x^2 + bx + 2010 factors into a product of two binomials, each having integer coefficients.
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Guest
Sep 2, 2021
0
366
3
Assist to help pls
Max has 5 times as many baseball cards as Paul. If Paul had 28 more baseball cards, the two boys would have exactly the same amount. How many baseball cards does Max have?
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Guest
Sep 2, 2021
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