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All Questions
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232936 Questions
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191
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Ellipses
For 0 < k < 6, the graphs of (x - k)^2/4 + y^2 = 1 and (x + k)^2/4 + y^2 = 1 intersect at A and C, and have x-intercepts at B and D respectively. Compute the value of k for which ABCD is a square.
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Guest
Aug 30, 2021
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235
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Interest
Marsha deposited 10,000 dollars into a savings account 3 years ago. The simple interest rate is 2%. How much money did she earn in interest? What would be her new account balance?
Guest
Aug 30, 2021
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327
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Polynomials
Find the constant coefficient when the polynomial 3(x - 4) - 2(x^2 - x + 7) + 5(x - 1) + 3(x + 8) is simplified.
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Guest
Aug 30, 2021
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212
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Counting
How many ways are there to answer a 10-question true/false test, where at least 8 of the questions have been answered with a false?
Guest
Aug 30, 2021
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294
1
+151
math
A shop had a number of T-shirts for sale. After selling 72 of them in the morning and 4/9 of the remainder in the afternoon, it was left with 1/3 of the T-shirts. How many T-shirts were sold altogether?
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Ajdabegano
Aug 30, 2021
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223
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This won’t be answered I know that
Jonathan had 147 more stickers than cards. He sold 1/3 of the cards and 1/6 of the stickers. He found that he had 8 more stickers than cards. The stickers were sold at 20 cents each and the cards were sold at 40 cents each. What was the total amount
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Guest
Aug 30, 2021
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335
1
What are do's and don'ts in using microscope?
What are do's and don'ts in using microscope?
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Guest
Aug 30, 2021
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203
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Coordinates
The equation of a circle which has a center at (-5, 2) can be written as Ax^2 + 2y^2 + Bx + Cy = 40 + y^2. Find the radius of the circle
Guest
Aug 30, 2021
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183
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parabolas
The vertex of a parabola is at (12, -4), and its axis of symmetry is vertical. One of the x-intercepts is at (18, 0). What is the x-coordinate of the other x-intercept?
Guest
Aug 30, 2021
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195
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help algebra
Find the largest integer k such that the roots of 2x^2 + kx + 5 are rational numbers.
Guest
Aug 30, 2021
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314
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ːHelpː
A square and an equilateral triangle have the same perimeter. What is the ration of the area of the square to the area of the equilateral triangle? I got the answer √3/3, but idk if it's correct
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Guest
Aug 30, 2021
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190
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Coordinates
Find the area of the region satisfying the inequality x^2 + y^2 <= 4x + 6y + 13 + 8x + 5.
Guest
Aug 30, 2021
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1013
1
I have $8$ pieces of strawberry candy (all identical) and $7$ pieces of rhubarb candy (all identical). Find the number of ways I can distrib
I have $8$ pieces of strawberry candy (all identical) and $7$ pieces of rhubarb candy (all identical). Find the number of ways I can distribute this candy to $5$ children.
i tried 77 but it was wrong
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Guest
Aug 30, 2021
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198
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Parabola
Find the vertex of the graph of the equation y=-2x^2+18x-15.
Guest
Aug 30, 2021
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335
3
helperid1839321 is the worst!
Hey hey :)
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Guest
Aug 30, 2021
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214
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Roots
The roots of x^2 + 8x + 4 are the same as the roots of Ax^2 + x + B . What is A + B?
Guest
Aug 30, 2021
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350
2
Geometry
Andrea notices that the 40-foot tree next to her is casting a 10-foot shadow. How tall, in inches, is Andrea if she is casting a 18-inch shadow at the same time?
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Guest
Aug 30, 2021
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344
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+151
Lattl
For a school project, Ryan is investigating cell phone use in his hometown, Riverside. It turns out that residents of Riverside used their cell phones for 663,370 minutes last year. It also turns out that they used them 10% less
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Ajdabegano
Aug 30, 2021
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248
2
Ps help thanks
Vivian had a total of 2580 Lego blocks packed into three boxes, A, B and C. The number of Lego blocks in Box A to that in Box B to that in Box C was 3 : 7 : 5. Vivian gave away 396 Lego blocks from Box B and some Lego blocks in Box C. The number of Lego
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Guest
Aug 30, 2021
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375
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+68
Plz help
An ice-cream seller sold 10 durian ice-cream and some red bean ice-cream. 1/5 of the red bean ice-cream were sold in cones and the remaining 24 red bean ice-cream were sold in cups. What percentage of the total ice-cream sold were red bean ice-cream sold
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Svtturtles
Aug 30, 2021
+1
410
7
Would u mind to answer
https://web2.0calc.com/questions/need-steps-and-answer-thank-you
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Guest
Aug 30, 2021
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328
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Algebra
If (a + b)/b = 5 and (b + c)/c = 4, then what is (a + c)/c?
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Guest
Aug 30, 2021
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211
0
help number theory
Let a and b be integers where a > 22 . If 4b - 1 and 5b + 2 are both multiples of a, find the value of a.
Guest
Aug 30, 2021
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192
0
help coordinates
The perpendicular bisector of the line segment connecting the points (-3,8) and (-5,-4) has an equation of the form y=mx+b. Find m+b.
Guest
Aug 30, 2021
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