All Questions ⁺⁰237784 Questions

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144

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geometry

In triangle PQR, M is the midpoint of PQ. Let X be the point on QR such that PX bisects angle QPR, and let the perpendicular bisector of PQ intersect AX at Y. If PQ = 36, PR = 22, QR = 26, and MY = 8, then find the area read more ..

Guest Apr 13, 2023

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186

2

For any number $x$, we are told that $x\&=7-x$ and $\&x = x -7$. What is the value of $\&(12\&)$?

For any number $x$, we are told that $x\&=7-x$ and $\&x = x -7$. What is the value of $\&(12\&)$?
Pls include steps not just answer
Thanks!

Guest Apr 13, 2023

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160

1

counting

Plz help
A standard six-sided die is rolled 7 times. You are told that among the rolls, there was one 1, two 2's, and three 4's. How many possible sequences of rolls could there have been? (For example, 5, 1, 2, 2, read more ..

Guest Apr 13, 2023

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161

2

Geometry

In the diagram below, $EU = 8,$ $UF = 7,$ $GV = 5,$ $VH = 16,$ and $UV = 6.$ Find $XY$. https://latex.artofproblemsolving.com/7/9/0/79080792335e8616b93bc39558db17b8508b4a4b.png

Guest Apr 13, 2023

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165

2

pls help geometry

A rectangular prism has a total surface area of $56.$ Also, the sum of all the edges of the prism is $64.$ Find the length of the diagonal joining one corner of the prism to the opposite corner. *no pic*

Guest Apr 13, 2023

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153

2

pls need help asap

Let $ABCDEFGH$ be a rectangular prism, where $EF = 4$, $EH = 5$, and $EA = 6$. Find the volume of pyramid $CFAH$. https://latex.artofproblemsolving.com/0/a/3/0a3404805162de58ee7c86ac6b0e5d23327c0026.png

Guest Apr 13, 2023

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159

1

+4

Can you help me answer this questions?

Can you help me?
A = {x € R/(2x – x2)(2x2 – 3x -2) = 0}, B = {n € N/3 <30}
Choose the correct statement?
A. A ∩ B = {2,4} read more ..

marydarby Apr 13, 2023

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149

1

how do i get smart

how do i get smart

Guest Apr 13, 2023

0

88

8

+1124

4 digit code

Hi friends,
I have posted this a week ago, and got some responses. However, no-one has come back to me with regards to the problem I am having, so I am posting again in the hopes that someone will please explain this to me:
a read more ..

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juriemagic Apr 13, 2023

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135

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counting

When two standard 6-sided dice are rolled, there are 36 possible outcomes for the sum of the two rolls: one sum of 2, two sums of 3, and so on, up to one sum of 12.
Find all possible ways of numbering two 6-sided dice read more ..

Guest Apr 13, 2023

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156

1

counting

Help I need to use combinations

I run a book club with n people, not including myself. Every day, for 100 days, I invite members in the club to review a book. What is the smallest positive integer n so that I can avoid ever having the read more ..

Guest Apr 13, 2023

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144

1

Which mode should I use?

Do I use use Rad or Deg mode when solving for an angle using sohcahtoa

Guest Apr 13, 2023

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145

0

advanced math

This exercise explores elementary properties of linear functions. Suppose that y is a linear function of x. The slope is −2.1. An increase of 6.1 units in x causes what change in y? units

Guest Apr 13, 2023

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148

0

Expected value

I need help with these
Suppose we have a bag with 10 slips of paper in it. Eight slips have a 3 on them and the other two have a 5 on them.
(a) What is the expected value of the number shown when we draw a single slip of paper? read more ..

Guest Apr 13, 2023

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137

0

Binomials

For some real number a and some positive integer n, the first few terms in the expansion of (1 + ax)^n
are 1 - 20x + 200x^2 + cx^3 +...
find c

Guest Apr 13, 2023

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155

2

BRO HELP

Scientists have discovered a new type of metal compound. They have roughly 15 grams of this compound, which has a half-life of 16 hours (it loses half of its mass every 16 hours). Approximately how much of this substance will be left after 48 hours? read more ..

Guest Apr 13, 2023

Apr 12, 2023

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156

1

counting

Joanna has six beads that she wants to assemble into a bracelet. Two of the beads have the same color, and the other four all have the same color. How many different ways can Joanna assemble her bracelet? (Two bracelets are considered identical if one can read more ..

Guest Apr 12, 2023

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160

0

Algebra

We are looking to factor 23x^2 + kx - 5 + x^2 - 3. Some values of k allow us to factor it as a product of linear binomials with integer coefficients. what are all such values of k?

Guest Apr 12, 2023

0

165

2

+237

Can help solve please

A bus travelled from station A to station E. There were 45 passengers on the bus when it left station A. At station B, some passengers boarded the bus but no passenger alighted from it. At station C, half of the passengers in the bus alighted and 20 passengers read more ..

Slimesewer Apr 12, 2023

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148

1

Algebra

How do I do this
Find the constant term in the expansion of (2z - 1/(z*sqrt(z)) + 1)^4.

Guest Apr 12, 2023

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154

1

geometry

Plz help with geometry problem
In the diagram below, PQRS is a parallelogram with a perimeter of 26 and an area of 28. What is the perimeter of rectangle OSTQ? Include an explanation of how you solved the probl read more ..

Guest Apr 12, 2023

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160

1

counting

Find the number of positive integers that satisfy both the following conditions:
Each digit is a 1 or a 2
The sum of the digits is 3

Guest Apr 12, 2023

0

150

0

counting

Help how to do this
Cai writes down the list of positive integers, excluding squares and cubes and all perfect powers. His sequence starts
2, 3, 5, 6, 7, 10, 11, ...
What is the 100th term in Cai's list?

Guest Apr 12, 2023

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140

0

Geometry

Let ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB. Prove that (x + h)^2*(y + h)^2 = (a + b)^4.

Guest Apr 12, 2023

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