All Questions ⁺⁰237784 Questions

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151

1

Log10000+log0,01

Log10000+log0,01

Guest Apr 7, 2023

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149

2

Geometry

The tangent to the circumcircle of triangle $WXY$ at $X$ is drawn, and the line through $W$ that is parallel to this tangent intersects $\overline{XY}$ at $Z.$ If $XY = 14$ and $WX = 6,$ find $YZ.$ Dont have a pic. And it not 8/3,66/7, or 63/5. Please write read more ..

Guest Apr 7, 2023

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159

1

counting

Plz I need help
Let n be a positive integer. Let k be a positive integer.
(a) Using a counting argument, show that C(n - 1, k - 1) + C(n - 1, k) = C(n,k).
(b) Using a counting argument, read more ..

Guest Apr 7, 2023

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164

1

counting

A baking club wants to form an executive committee. There are people in the baking club, including mark. In how many ways can the baking club form an executive committee with people?

Guest Apr 7, 2023

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140

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Algebra

Help the class didn't cover this
Each graph below is the graph of an exponential function of the form ka^x (where a > 0). Match each graph with the correct option.

Guest Apr 7, 2023

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140

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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 7, 2023

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165

2

Geometry(im not sure how to put a pic but if you search it up i think theres a diagram)

The tangent to the circumcircle of triangle $WXY$ at $X$ is drawn, and the line through $W$ that is parallel to this tangent intersects $\overline{XY}$ at $Z.$ If $XY = 14$ and $WX = 6,$ find $YZ.$

Guest Apr 7, 2023

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141

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counting

Syd chooses two different primes, both of which are greater than and multiplies them. The resulting product is less than How many different products could Syd have ended up with?

Guest Apr 7, 2023

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147

1

Can someone show me...

Could someone please show me how ( is not equal to

Guest Apr 7, 2023

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118

3

+7

Help pls

A stick is broken at two points, chosen at random. If the length of the stick is 6 then what is the probability that all three resulting pieces are shorter than 5 units?
Thanks in advance

Currykirby Apr 7, 2023

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169

1

Probability

Two points on a circle of radius 1 are chosen at random. Find the probability that the distance between the two points is at most 1.5.

Guest Apr 7, 2023

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155

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counting

You are given the 4 x 4 grid below.
(a) Find the number of ways of placing 8 counters in the squares (at most one counter per square), so that each row contains exactly two counters.
(b) Find the number of ways read more ..

Guest Apr 7, 2023

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160

1

HELP DUE TOMOROW

A member of the junior varsity swim team will be elected as President. Each member is equally likely to be elected. The probability that a sophomore is elected is $\frac{4}{7}$ times the probability that a freshman is elected. Everyone on the junior read more ..

Guest Apr 7, 2023

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153

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math

f(-2)=3x^2-4x=2

Guest Apr 7, 2023

Apr 6, 2023

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163

0

+12

Question on Geometry

Hi! I have this geometry question that I'm having a lot of trouble on. I just don't really know where to start. I would appriciate as much help as possible on the three parts of this question with work shown, not just an answer. I apologize for the crude read more ..

booboobear Apr 6, 2023

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136

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geometry

Points X, Y, and Z are on the sides QR, PR, and PQ, respectively, of right triangle PQR such that PZXY is a square. If PQ = and PR = , then what is the side length of the square?

Guest Apr 6, 2023

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164

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Counting

Help plz with counting
Find the number of ways of arranging the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 in a row so that the product of any two adjacent numbers is even or a mutliple of 3

Guest Apr 6, 2023

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158

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geometry

In tetrahedron ABCO, angle AOB = angle AOC = angle BOC = 90^\circ. A cube is inscribed in the tetrahedron so that one of its vertices is at O, and the opposite vertex lies on face ABC. Let OA = 1, OB = 1, OC = 1. Show that the read more ..

Guest Apr 6, 2023

0

159

1

Polynomial stuff

Let and g(x)=2x^4-6x^2+2x-1. Let a be a real number. What is the largest possible degree of f(x)+a*g(x)
And then after that, solve for the smallest possible degree.

Guest Apr 6, 2023

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162

1

Counting

Catherine rolls a standard 6-sided die five times, and the product of her rolls is How many different sequences of rolls could there have been? (The order of the rolls matters.)

Guest Apr 6, 2023

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161

1

If $g(2x - 5) = 3x + 9$ for all real $x$, then what is $g(1)$?

If $g(2x - 5) = 3x + 9$ for all real $x$, then what is $g(1)$?
Thanks!

Guest Apr 6, 2023

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165

1

Please help

Let the operation $\#$ be defined as $\#(a, b, c) = b^2 - 4ac$, for all real numbers $a, b$ and $c$. What is the value of $\#(1, 2, 3)$?
Thanks!

Guest Apr 6, 2023

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145

0

counting

In how many ways can three points be selected from the grid below so that they form a right isosceles triangle?
read more ..

Guest Apr 6, 2023

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130

6

+1124

Derivative question

Hi friends,
I trust you are all doing well?....please would someone just explain this very simple thing for me?..The question is..:
Graph goes through the points P(-1/3;0), Q(1;0) and R(0;1). Detremine read more ..

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juriemagic Apr 6, 2023

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124

2

I need help

Find the radius of the sphere which passes through points $A,$ $B,$ $C,$ and $D$ in space if $\angle BAC = \angle BAD = \angle CAD = 90^\circ$ and $AB = AC = AD = 6.$

Guest Apr 6, 2023

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