All Questions ⁺⁰237757 Questions

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help with geometry!

Let $G$ be the center of equilateral triangle $XYZ.$ A dilation centered at $G$ with scale factor $-\frac{3}{4}$ is applied to triangle $XYZ,$ to obtain triangle $X'Y'Z'.$ Let $A$ be the area of the region that is contained in both triangles $XYZ$ and $X'Y'Z'.$ read more ..

Guest Jun 13, 2023

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125

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plz 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 Jun 13, 2023

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136

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Modular Arithematic

"In this problem, and are integers.
If and , then what is the remainder when is divided by ?"
I found this (let and be positive intergers):
I'm read more ..

Guest Jun 13, 2023

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137

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square roots

Find all values of x such that \sqrt{4x^2} + \sqrt{x^2} = 6 + 3x.

Guest Jun 13, 2023

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145

6

Compute the value of:

Compute the value of:

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Guest Jun 13, 2023

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142

2

Help

The numbers are to be entered into the 10 boxes shown below, so that each number is used exactly once:
What is the maximum value of P?

Guest Jun 13, 2023

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149

4

Help plz asap!

There exists a circle with radius , passing through the point , such that the center of C lies on the line and has positive -coordinate. is the graph of the equation , where are integers (not necessarily positive). Find .

Guest Jun 13, 2023

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152

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Help plzzzz

The graph of y = 2(x − 4)2 − 50 has an x-intercept at (a, 0) where a > 0. What is a?

Guest Jun 13, 2023

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144

1

Help

Write in simplest terms, with no radicals in the denominator.
1/(√ 3 + √ 2) + 1/(√ 3 − √ 2)
*plz explain solution if possible

Guest Jun 13, 2023

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132

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fractions

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

Guest Jun 13, 2023

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138

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proportion

All members of our painting team paint at the same rate. If 20 members can paint a 2000 square foot wall in 40 minutes, then how long would it take the 20 members to paint a 6000 square foot wall, in minutes?

Guest Jun 13, 2023

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138

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need help with rates

A plane flies from Penthaven to Jackson and then back to Penthaven. When there is no wind, the round trip takes 3 hours and 36 minutes, but when there is a wind blowing from Penthaven to Jackson at 20 miles per hour, the trip takes read more ..

Guest Jun 13, 2023

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134

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proportion

I need help with this
In physics, Ohm's law says that current through a wire, I, is directly proportional to voltage, V, and inversely proportional to resistance, R:
I = V/R
It's also true that resistance is directly proportional read more ..

Guest Jun 13, 2023

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159

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19+21nx=25 solution

19+21nx=25 solution

Guest Jun 13, 2023

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141

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rates

I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 50 miles per hour instead, then I would have arrived 45 minutes later. How many miles did I drive?

Guest Jun 13, 2023

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138

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Geometry matrices question

Let $\mathbf{A}$ and $\mathbf{B}$ be the following matrices: \begin{align*} &\mathbf{A} \text{ rotates vectors clockwise by a right angle},\\ &\mathbf{B} \text{ projects vectors onto a line with direction $\begin{pmatrix}1\\ 4 \end{pmatrix} $}.\\ read more ..

Guest Jun 13, 2023

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126

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triangles

1. Find the area of triangle ABC if AB = 6, BC = 8, and angle ABC = 90 degrees.
2. If angle ABC = 135 degrees, and angle ACB = 30 degrees, what is angle BAC?

Guest Jun 13, 2023

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142

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help me

Find the number of ways of arranging the numbers 1,2 ,3, 4, 5, 6, 7, 8, 9 in a row so that the product of any two adjacent numbers is even.

Guest Jun 13, 2023

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152

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HELP (IMPORTANT) HELP

What are the inverses of the following elements of S4:
(a) (1234)
(b) (4321)
(c) (12)(34) read more ..

Guest Jun 13, 2023

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114

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solve

Solve 3a + 4b = 5a - 6b + 24 - 3a for a in terms of b.

Guest Jun 13, 2023

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137

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system

The system of equations
\[\frac{xy}{x + y} = 1, \quad \frac{xz}{x + z} = 2, \quad \frac{yz}{y + z} = 1\]
has exactly one solution. What is $z$ in this solution?

Guest Jun 13, 2023

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149

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help with algebra

Let $a$ and $b$ be real numbers such that $a^3 + 3ab^2 = 679$ and $a^3 - 3ab^2 = 615.$ Find $a - b.$
Thanks!

Guest Jun 13, 2023

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