All Questions ⁺⁰237722 Questions

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467

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HELP ASAP PLZ!

In triangle ABC, AC = BC and angle C = 90. Points P and Q are on AB such that QCP = 45. Rotate the diagram counter-clockwise around C by 90 degrees. Let P go to point P'. Prove that angle P'CQ is equal to 45 degrees. read more ..

Guest Feb 28, 2021

-1

517

1

+54

Help plz!

let f(x)=x^2+1 and g(x)=x-3. write and expression for f(g(x)).

KindaFrisky Feb 28, 2021

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492

2

geometry

Guest Feb 28, 2021

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519

1

graphing question

Use the graph below of a function f to find all integer values of x for which f(x) = -1. Separate multiple answers with a comma.

<read more ..

Guest Feb 28, 2021

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561

1

help please! kind of urgent!

Given and , and the general relation
for , find .

Thank you! read more ..

Guest Feb 28, 2021

-1

510

1

+54

PLEASE HELP!!!!! URGENT!!!!

find the equation of a parabola whose vertex is at (-1,7), whos axis of symmertry is x=-1, and who's y-intercept is (0,10). write your answer in vertex form.

KindaFrisky Feb 28, 2021

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262

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hii check this out later but i need help pls

Math problem:
if a=4, b=2, and c=-5, then what is the value of

fun math vid :) read more ..

Guest Feb 28, 2021

Feb 27, 2021

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432

0

+4

Please HELP QUICK!!!

Justine has a large bag of candy. She splits the candy equally between herself and her 44 friends, but she needs to discard three candies before dividing so that everyone gets an equal number of candies. Justine then splits her share of the candy between read more ..

Melonchessloser Feb 27, 2021

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531

1

How many collections of 12 Skittles have at least one of each color? (There are 5 colors of Skittles.)

How many collections of 12 Skittles have at least one of each color? (There are 5 colors of Skittles.)

Guest Feb 27, 2021

+1

636

3

+17

In the game 'Cover It Up' two standard six-faced dice are rolled and their sum determined. The player can then cover that number on the game

In the game 'Cover It Up' two standard six-faced dice are rolled and their sum determined. The player can then cover that number on the game board or any two numbers that have that sum. For example, if you roll a 3 and 5, you can cover the 8, the 1 and read more ..

Jastun Feb 27, 2021

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394

1

parabola

The graph of y = f(x) is a parabola whose vertex is at (1, -2). The graph of y = f(x + 8) is also a parabola. Where is the vertex of the graph of y = f(x + 8)? Write your answer as an ordered pair.

Guest Feb 27, 2021

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479

1

algebra

The roots of the equation 2x^2 - mx + n = 0 sum to -6 and multiply to 10. What is the value of m + n?

Guest Feb 27, 2021

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465

1

algebra

Let a and b be the solutions of the equation 2x^2 + 10x + 5 = 0. What is the value of (2a - 3)(4b - 6)?

Guest Feb 27, 2021

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329

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counting

How many 10-digit binary numbers start with 2 ones or end with 3 ones (or both)?

Guest Feb 27, 2021

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316

0

probability

When I go to work, there's a 20% probability that I'll forget my office keys and a 30% probability that I'll forget my wallet. If there's a 15% probability that I forget both, then what's the probability that I arrive at work with both my office keys and read more ..

Guest Feb 27, 2021

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334

1

quadratic roots

I choose a random integer n between 1 and 10 inclusive. What is the probability that for the n I chose, there exist no real solutions to the equation x(x + 8) = -n? Express your answer as a common fraction.

Guest Feb 27, 2021

0

563

4

Volume question HARD

A 4" × 6" × 8" rectangular solid is cut by slicing through the midpoints of three adjacent sides as shown. Find the volume of the outlined solid.

Guest Feb 27, 2021

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392

1

4th Repost if anybody wants to help :(

Consider the ellipse \[\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1,\]where $a > b.$ As a function of $a$ and $b,$ find the radius of the smallest circle that contains the ellipse, is centered on the $y$-axis, and which intersects the ellipse only at $(0,b).$ read more ..

Guest Feb 27, 2021

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534

1

roots

What is the sum of all values of z such that z^2 = 12z - 7 + 9z - 5?

Guest Feb 27, 2021

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453

1

very challenging @Cphill @Melody

Let be the set of 10-tuples where each entry is 0 or 1, so contains 10-tuples. For each 10-tuple in let be the polynomial of degree at most 9 such that
for For example, is read more ..

Guest Feb 27, 2021

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422

1

proportion

Suppose that a is inversely proportional to b. If a = 6 when b = 3, find a when b = 8. Express your answer as a fraction.

Guest Feb 27, 2021

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486

1

algebra

The sum of three different numbers is 67. The two larger numbers differ by 7 and the two smaller numbers differ by 8. What is the value of the largest number?

Guest Feb 27, 2021

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