All Questions ⁺⁰237827 Questions

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239

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runners

Two joggers are running around an oval track in opposite directions. One jogger runs around the
track in 56 seconds. They meet every 20 seconds. How many seconds does it take the second jogger
to run around the track?

Guest Oct 24, 2022

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247

2

rates

(a) There was terrible traffic on the highway, and Kiran drove to work at 15 miles per hour. How
fast would he need to drive home for the average speed for his round trip commute to be 35
miles per hour?
(b) Seetha drove to work at 30 miles per read more ..

Guest Oct 24, 2022

Oct 23, 2022

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282

2

help plz

10 people can complete 8 large jigsaw puzzles in 6 hours. The same 10 people can complete 15
small jigsaw puzzles in 4 hours. Assume everyone works at the same pace, and the puzzles of each
type are all the same size.
(a) How long will it read more ..

Guest Oct 23, 2022

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206

0

Hii could someone assistt mee

Could you also explain the outcome?

Guest Oct 23, 2022

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196

0

geometry

Let O be the center of a circle with diameter AB. Let C be a point on the circle such that angle COA = 90. Point P lies on line segment OA, and when line segment CP is extended past P, it intersects the circle at Q. If PQ = 7 and PO = 20, then find r^2, read more ..

Guest Oct 23, 2022

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257

1

help coordinates

In terms of pi, what is the area of the circle defined by the equation 2x^2+2y^2+10x-6y-48=x^2+y^2-10x+2y

Guest Oct 23, 2022

-1

264

1

Algebra

Solve for y if 9^y = 3*6*27*4/(81*2)

Guest Oct 23, 2022

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190

0

Algebra

Fill in the blanks to make the equation true.

___^3 * ____ * _____^2 = x^5*y^6
read more ..

Guest Oct 23, 2022

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172

0

Algebra

Simplify m*n^3^2/(2*m*n).

Guest Oct 23, 2022

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271

2

+309

Deliberately misguiding answers?

As I was scrolling down the forum, I've noticed that there were many questions answered by Guest(s) (I can't prove whether it was one person or many), and noticed that either my mathematics skills have deteriorated significantly, or that they got many, read more ..

WhyamIdoingthis Oct 23, 2022

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203

0

functions

(a) Let f : (-inf,0) U (0,inf) -> R be defined by f(x) = (x - 1)/x. Show that f has no inverse function.

(b) Let g : (0,inf) -> R be defined by g(x) = (x - 1)/x. Show that g has an inverse function. read more ..

Guest Oct 23, 2022

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255

1

sequences

We have two geometric sequences of positive real numbers:
6,a,b and a,b,1296
Solve for a

Guest Oct 23, 2022

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259

1

Parabola

The graph of y = f(x) is a parabola whose vertex is at (2,-1). The graph of y = f(x + 3) is also a parabola. Where is the vertex of the graph of y = f(x + 3). Write your answer as an ordered pair.

Guest Oct 23, 2022

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252

2

graphing

The graph of y = f(x) is shown in red below. Find f(2).

Guest Oct 23, 2022

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246

2

+64

Triangle question

Triangle ABC and triangle DEF are congruent, isosceles right triangles. The square
inscribed in triangle ABC has an area of 15 square centimeters. What is the area of the square inscribed in
triangle DEF? Express your answer as a common fraction. read more ..

Chandalier Oct 23, 2022

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246

2

+64

Square ABCD is inscribed...

Square ABCD is inscribed in a circle with diameter BD of length 2 units. Segment AB is the
diameter of the half-circle on top of the square. What is the area of the shaded region, in square units?
Express your answer as a common fraction. Please show read more ..

Chandalier Oct 23, 2022

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264

2

yui

I need to make $500 per week after tax in order to pay all my bills. The income tax is 20%. What is the smallest pre-tax weekly salary I can earn and still be able to pay my bills after I pay my income tax?

Guest Oct 23, 2022

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232

1

triangles

As shown in the diagram, BD/DC=2,CE/EA=3, and AF/FB=5. Find [DEF]/[ABC].

Guest Oct 23, 2022

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258

1

sequence

Given a_0 = 1 and a_1 = 5 and the general relation a_n^2 - a_{n + 1} = (-1)^n for n >= 1 find a_3

Guest Oct 23, 2022

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256

1

Sum

Evaluate the sum 6/(3^2 - 1) + 6/(5^2 - 1) + 6/(7^2 - 1)

Guest Oct 23, 2022

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252

1

parabola

The area of the triangle formed by points of intersection of parabola y=a(x-3)(x+2) with the coordinate axes is 12. Find a if it is known that parabola opens upward.

Guest Oct 23, 2022

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281

4

love some help

Levans writes a positive fraction in which the numerator and denominator are integers, and the numerator is 1 greater than the denominator. He then writes several more fractions. To make each new fraction, he increases both the numerator and the denominator read more ..

Guest Oct 23, 2022

0

256

2

helppppp

What is the smallest integer that can possibly be the sum of an infinite geometric series whose first term is 13?

Guest Oct 23, 2022

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