All Questions ⁺⁰230625 Questions

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We define a function f(x) such that f(11) = 34, and if there exists an integer a such that f(a) =

We define a function f(x) such that f(11) = 34, and if there exists an integer a such that f(a) = b, then f(b) is defined and f(b) = 3.
Don't look read more ..

Guest May 30, 2023

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Altitudes

I need help with altitudes
Triangle ABC has altitudes AD, BE, and CF. If AD = 12, BE = , and CF is a positive integer, then find the largest possible value of CF.

Guest May 30, 2023

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plz help

I am really stuck on this
In how many ways can three pairs of siblings from different families be seated in two rows of three chairs, if siblings may sit next to each other in the same row, but no child may sit directly in read more ..

Guest May 30, 2023

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help i need help

this might seem easy but i am easily confused.
Find the number of ways that Magnus can give out 10 identical stickers to 8 of his friends. (Not everyone has to get a sticker.)

Guest May 30, 2023

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58

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system

plz help with systems
For certain values of k and m, the system
3a + 2b = 2
6a + 2b = k + 3a + mb read more ..

Guest May 30, 2023

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50

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Help plz

Ten slips of paper labeled from 1 to 10 are placed in a hat. The first slip of paper is not replaced before selecting the second slip of paper.
What is the probability of selecting an odd number followed by an even number?
Respo read more ..

Guest May 30, 2023

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55

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bisectors

In triangle PQR, let X be the intersection of the angle bisector of angle P with side QR, and let Y be the foot of the perpendicular from X to line PR. If PQ = 9, QR = 9, and PR = 9, then compute the length of XY. read more ..

Guest May 30, 2023

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solve

1. Find all real numbers a that satisfy \frac{1}{64a^3 + 7} - 7 = 0.
2. Find all values of a that satsify the equation \frac{a}{3} + 1 = \frac{a + 3}{a} + 1.

Guest May 30, 2023

+1

62

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+274

Help Please!

If two lines l and m have equations -x+6, and y = -4x+6, what is the probability that a point randomly selected in the 1st quadrant and below l will fall between l and m? Express your answer as a decimal to the nearest hundredth.
&read more ..

supremecheetah May 30, 2023

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48

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trapezoid

Can anyone help with this?
Let ABCD be a trapezoid with bases AB and CD. Let P be a point on side CD, and let X, Y be the feet of the altitudes from P to AD, BC respectively. Prove that if AD = 5, BC = 7, AB = 6, CD = 12, read more ..

Guest May 30, 2023

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help me plz

Plz help guys
In the diagram below, SR = PQ = 20 and RT:TS = 2:3. Find UV.

Guest May 30, 2023

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system

At a cafeteria, Mary orders two pieces of toast and a bagel, which comes out to $3.15. Gary orders a bagel and a muffin, which comes out to $3.50. Larry orders a piece of toast, two bagels, and three muffins, which comes out to $8.15. How many cents does read more ..

Guest May 30, 2023

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50

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polygon

Let B, A, and D be three consecutive vertices of a regular -gon. A regular heptagon is constructed on line AB with a vertex C next to A. Find angle BCD in degrees.

Guest May 30, 2023

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54

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solutions

How many solutions are there to the equation
u + v + w + x + y + z = 7
where u, v, w, x, y, and z are nonnegative integers, and x is at most 2 or y is at least 3?

Guest May 30, 2023

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help help

Each unit square of the 4x4 grid below is to be filled in with the number 1, 2, 3 or 4, so that:
Each row contains the numbers 1, 2, 3, and 4 in some order,
Each column contains the numbers 1, 2, 3, and 4 in some order, and
Each square read more ..

Guest May 30, 2023

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help

A cylindrical cup measures 12cm in height. When filled to the very top, it holds 780 cubic centimeters of water. What is the radius of the cup, rounded to the nearest tenth?

Guest May 30, 2023

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system

Find the ordered quintuplet (a,b,c,d,e) that satisfies the system of equations
a + 2b + 3c + 4d + 5e = 41
2a + 3b + 4c + 5d + e = 15
3a + 4b + 5c + 1d + 2e = 34 read more ..

Guest May 30, 2023

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56

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System of Equations

Let x,y, and z be real numbers such that:
12x−9y2=7
6y−9z2=−2
12z−9x2=4 read more ..

Guest May 30, 2023

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solve

Solve for the variable x in terms of y and z, assuming y \neq \frac{1}{2}:
xy + x = \frac{3x + 2y + z + y + 2z}{3}

Guest May 30, 2023

May 29, 2023

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+70

math

Seven years ago, Grogg's dad was 8 times as old as Grogg, and 4 years ago, his dad was 5 times as old as Grogg. How old is Grogg's dad currently?
I'm pretty sure im supposed to start by giving variables... but i'm not sure what to do read more ..

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sheeshers May 29, 2023

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56

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plsss help

Vince has three pieces of rope with lengths of 300cm, 321cm, and 396cm. He wants to cut the three pieces of rope into smaller pieces of equal length with none left over what is the greatest possible length of each of the smaller pieces of rop read more ..

Guest May 29, 2023

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55

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+274

Help Yet Again (Also Important)

Annie and Xenas each arrive at a party at a random time between 2:00 and 4:00. Each stays for 45 minutes and then leaves. What is the probability that Annie and Xenas see each other at the party?

supremecheetah May 29, 2023

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45

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+101

I tried to draw a diagram for this, but I still don't quite get it

Ranjeet parks his car in a lot on the corner of Park Lane and Main Street. He walks 80 m
east to First Avenue, turns 30 o to the left, and follows First Avenue for 100 m to the Metro
Building, where he takes the elevator to his office on the read more ..

vxnessa May 29, 2023

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