All Questions ⁺⁰238457 Questions

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Range

The domain of the function r(x) = 2x/(1 - x) is (-inf,1) U (1,iinf). What is the range?

Guest Nov 23, 2022

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geometric series

For a real number r, let s(r) denote the set of real numbers that can be expressed in the form
a1 r + a2 r^2 + a3 r^3 + ...
with an infinite number of terms, where ai in {0,1}
(a) Show that 1/2 an element in S(1/4)
(b) Show that 1/5 read more ..

Guest Nov 23, 2022

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301

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+18

idk how to solve this

A function f is defined on the complex numbers by f(z) = (a+bi)z, where a and b are positive real numbers. Each point in the image of f is equidistant from the point z and the origin. Given that |a+bi| = 8, find a and b. Enter your answer as an ordered read more ..

fluufye Nov 23, 2022

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305

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need help

What is the value of b if 5^b + 5^b + 5^b + 5^b + 5^b = 25^(b - 1).

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Guest Nov 23, 2022

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320

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help coordinates

Find the area of the region enclosed by the graph of x^2 + y^2 = 2x - 6y - 10x + 14y + 88.

Guest Nov 23, 2022

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281

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Simplify

Assuming that p neq 0 and q neq 0, simplify p*q3*3*4*2p*q*2*p*q*q^3

Guest Nov 23, 2022

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268

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zero power zero

what is the value of Zero power zero

Guest Nov 23, 2022

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228

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precalc

(a) In triangle ABC, angle BCA = pi/4, AB = 5, and AC = 6. Find the sum of all distinct possible values of BC If there are no possible values, enter 0.

(b) In triangle ABC, angle BCA = pi/4, AB = 6, and AC = 4. Find read more ..

Guest Nov 23, 2022

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help math

Arrange the following numbers in increasing order (smallest first, biggest last):

A = 2*1/2*4*1/6
B = 12*128 read more ..

Guest Nov 23, 2022

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226

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Function

Let F(x) be the real-valued function defined for all real x except for x = 1 and x = 2 and satisfying the functional equation
F(x) + F((2x - 3)/x) = x.
Find the function F(x) satisfying these conditions. Write F(x) as read more ..

Guest Nov 23, 2022

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248

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Question

If a family borrows $23,346 for an addition to their home, and the loan is to be paid off in monthly payments over a period of 10 years, how much should each payment be? (Interest has been included in the total amount borrowed.)

Guest Nov 23, 2022

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303

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Algebra

Fill in the blank to make the equation true.

13*5*13*___*3 = 13*17

Guest Nov 23, 2022

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219

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help counting

A certain club has 50 people, and 10 members are running for president. Each club member either votes for one of the 10 candidates, or can abstain from voting. How many different possible vote totals are there?

Guest Nov 23, 2022

Nov 22, 2022

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233

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Algebra

Let c be a real number, and consider the system of quadratic equations
y = 6x^2 - 9x + c - x^2 - x
y = 5x^2 - 3x + x^2 + 2x

For which values of c does this system have:
(a) Exactly one real solution (x,y)
(b) More than read more ..

Guest Nov 22, 2022

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225

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need help

Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green ribbon for learning how to roll over, and a white ribbon for learning how to stay. There are 100 dogs in the school.
* 62 have blue ribbons, 65 have read more ..

Guest Nov 22, 2022

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229

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counting

In how many ways can the numbers 1 through 5 be entered once each into the five boxes below so that all the given inequalities are true?

Guest Nov 22, 2022

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285

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quadratic

Let r and s be the roots of 3x^2+4x-12=2x^2-6x+8. Find r^2 + s^2

Guest Nov 22, 2022

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263

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Help now

Given that x+y=\frac7{10} and x-y=\frac5{14}, find the value of x^2-y^2, expressed as a common fraction.

Guest Nov 22, 2022

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246

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help probability

A stick is broken at two points, at random. If the length of the stick is 6, then what is the probability that all three resulting pieces are shorter than 3 units?

Guest Nov 22, 2022

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268

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percent change text

An item is regularly priced at $63. Latoya bought it on sale for 95% off the regular price. How much did Latoya pay

Guest Nov 22, 2022

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252

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Probability question

A standard six-sided die is rolled twice. What is the probability that the product of the rolls is 3 or 12?

Guest Nov 22, 2022

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221

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Graphing question

What is the smallest distance between the origin and a point on the graph of y = 1/2*(x^2 - 8)?

Guest Nov 22, 2022

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235

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Probability

In Ms. Q's deck of cards, every card is one of four colors (red, green, blue, and yellow), and is labeled with one of seven numbers (1, 2, 3, 4, 5, 6, and 7). Among all the cards of each color, there is exactly one card labeled with each number. The read more ..

Guest Nov 22, 2022

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Kim-Ly is writing a coordinate proof to show that the midpoints of a quadrilateral are the vertices of a parallelogram. She starts by assign

Kim-Ly is writing a coordinate proof to show that the midpoints of a quadrilateral are the vertices of a parallelogram. She starts by assigning coordinates to the vertices of quadrilateral RSTV and labeling the midpoints of the sides of the quadrilateral read more ..

Guest Nov 22, 2022

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233

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3x/28=

Guest Nov 22, 2022

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