All Questions ⁺⁰237357 Questions

0

311

2

help solving

Jacob and Nathan had an equal number of baseball cards. After Jacob gave away 49 baseball cards and Nathan gave away 85 baseball cards, Jacob had 5 times as many baseball cards as Nathan. How many baseball cards did each have at first?

Guest Jun 25, 2022

0

301

2

math help

Troy collected 4 times as many hats as Jake. Jake collected 1/2 as many hats as David. Altogether, they collected 21 hats. How many fewer hats did Jake collect than Troy?

Guest Jun 25, 2022

0

272

1

bases

A base-10 integer n can be represented as $32_a$ in one base and $13_b$ in another base, where a and b are any integer bases larger than 3. What is the smallest possible sum a+b?

Guest Jun 25, 2022

0

245

1

help counting

How many 3-digit numbers contain exactly one 1 and one 2? Examples don't include 510 and 771.

Guest Jun 25, 2022

0

217

0

+75

HELP ASAP

Allan and Bella are playing a game by taking turns to toss a coin. Allan wins as soon as ‘‘HTH" appears, Bella wins if ‘‘HH" appears. Find the probability that Allan wins?

HelpMePlssss Jun 25, 2022

0

222

0

+75

Help

Randomly take two points on the boundary of a unit square. Two circles of radii 1/2 with these two points as their centers are drawn. What is the probability that they intersect?

HelpMePlssss Jun 25, 2022

0

218

0

+75

help asap

Randomly select a point (x,y) from the unit square 0≤x≤1, 0≤y≤1. The probability that (x+2y,3x+y) is also in the square can be written as m/n, where m and n are coprime. Find the value of m+n.

HelpMePlssss Jun 25, 2022

0

207

0

+75

help me

Arrange the 26 letters from A to Z in a row. The probability that no vowels are next to each other is m/n, where m,n are relatively prime. Find the sum of m's digits.

HelpMePlssss Jun 25, 2022

0

258

1

Parallelograms

Let ABCD be a parallelogram. Extend BC past B to F, and let E be the intersection of AB and DF. If the areas of triangles BEF and ADE are 4 and 9, respectively, find the area of parallelogram .
read more ..

Guest Jun 25, 2022

0

197

0

Analytic geometry

What is the product of all the coordinates of all the points of intersection of the two circles defined by x^2-2x+y^2-10y+20=0 and x^2-8x+y^2-10y+35=0?

Guest Jun 25, 2022

0

189

0

help geometry

Two sectors of a circle of radius 12 overlap as shown, with P and R as the centers of the respective circles. Determine the area of the shaded region.

read more ..

Guest Jun 25, 2022

0

234

1

counting problem

How many positive integers, not exceeding 100, are multiples of 2 or 3 but not 4 or 5?

Guest Jun 25, 2022

0

274

1

Algebra

Let a and b be real numbers such that a+b=-1 and a-b=2. Compute a^2-b^2.

Guest Jun 25, 2022

0

251

2

Algebra

When the same constant is added to the numbers 60, 100, and 180, a three-term geometric sequence arises. What is the common ratio of the resulting sequence?

Guest Jun 25, 2022

0

292

2

PLS HELP THX BEFORE HAND

Triangle XYZ is equilateral, with O as its center. A point P is chosen at random, inside the triangle. Find the probability that point P is closer to point O than to any of the vertices. (In other words, find the probability OP that is read more ..

Guest Jun 25, 2022

0

284

1

Graphing

The graph of y = f(x) is shown below in red. Given that f is invertible, find f^{-1}(4)

Guest Jun 25, 2022

0

279

2

help plz

What are the coordinates of the points where the graphs of f(x) = x^3 - x^2 + x + 1 and g(x) = x^3 + x^2 + x + 1 intersect? Give your answer as a list of points separated by semicolons, with the points ordered such that their x-coordinates are in increasing read more ..

Guest Jun 25, 2022

0

258

1

quadratic

Given $x\neq0$, find the positive value of $b$ such that the equation 3/x + x/9 = b will have exactly one solution.

Guest Jun 25, 2022

0

274

1

Algebra

The graph of the equation y=ax^2+bx-18 is completely below the x axis. If , a^2=49 what is the largest possible integral value of b?

Guest Jun 25, 2022

0

277

1

Parabola question

Suppose that we have an equation y = ax^2 + bx + c whose graph is a parabola with vertex (3,4), vertical axis of symmetry, and contains the point (1,0). What is (a,b,c)?

Guest Jun 25, 2022

0

188

0

Coordinates

Given that the point is (4,7) on the graph of y = f(x), there is one point that must be on the graph of y/2 = 3f(4x) - 5. What is the sum of coordinates of that point?

Guest Jun 25, 2022

0

272

1

help with graph

The graph of y = f(x) is shown in red below. For how many values of c is f(c) = -1?

read more ..

Guest Jun 25, 2022

0

269

2

+32

help please

a,b,c,d,e and f are positive numbers such that bcdef/a=4, acdef/b=9, abdef/c=16,abcef/d=1/4, abcdf/e=1/9,abcde/f=1/16. Then (a+c+e)-(b+d+f)=_____

catswift Jun 25, 2022

0

281

1

help polynomial

When the expression (2x^4+3x^3+x-14)(3x^{10}-9x^7+9x^4+30)-(x^2+5)^8 is expanded, what is the degree of the resulting polynomial?

Guest Jun 25, 2022

0

205

0

Graphs

A and B are constants such that the graphs of xy = B and y = Ax^2 + B intersect at the point (2,8). Write the ordered pair (A, B).

Guest Jun 25, 2022

0 Online Users