All Questions

140

Algebra

Need help with these
Select all the correct statements. (For this problem, we assume that an exponential function is of the form ka^x where a > 0)
(A) The following function is exponential: y = 2^x
(B) read more ..

Guest Apr 14, 2023

180

geometry

In the diagram below, SR = PQ = 20 and RT:TS = 2:13. Find UV.

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Guest Apr 14, 2023

181

what happend to chris

where did the epic cphil go???

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Guest Apr 14, 2023

161

Geometry

In triangle ABC, AB = 15, BC = 20, and AC = 20. Find the length of the shortest altitude in this triangle.

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Guest Apr 14, 2023

174

Help Please!

How many real solutions are there to the equation x^2 =1/(x+3)

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Guest Apr 14, 2023

177

Plz help!!! Thank You!!!

The graph of y = f(x) is shown below. How many solutions are there to the equation f(x) = -f(x)?
The graph of y = f(x) is shown below. How many solutions are there to the equation f(x) = f(-x)? read more ..

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Guest Apr 14, 2023

152

counting

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 front of their sibling?

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Guest Apr 14, 2023

153

polygon

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

Guest Apr 14, 2023

164

Algebra

Let r be a root of x^3 - 2x + 5 = x^3 - x^2 + 9. Show that none of r, r^2, or r^3 is irrational.

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Guest Apr 14, 2023

165

counting

Sam writes down the numbers 1, 2, 3, ..., 99
(a) How many digits did Sam write, in total?
(b) Sam chooses one of the digits written down, at random. What is the probability that Sam chooses a 0?
(c) What is the sum read more ..

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Guest Apr 14, 2023

148

Geometry

Help with parallelogram
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 problem.

Guest Apr 14, 2023

184

Probability

When it rains, every student in Margo's school brings a raincoat, an umbrella, or both. And of the students bring both. The total number of umbrellas brought is equal to twice the number of raincoats.
What percent of the read more ..

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Guest Apr 14, 2023

150

geometry

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 Apr 14, 2023

160

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

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Guest Apr 14, 2023

150

factoral

you plan to shop, call a friend, study, and exercise on a weekend day. How many arrangements of activit

Guest Apr 14, 2023

174

Fractions

Levans writes a positive fraction in which the numerator and denominator are integers, and the numerator is 1 greater than the denominator. He then writes several more fractions. To make each new fraction, he increases both the numerator and the denominator read more ..

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Guest Apr 14, 2023

165

Probability

Need help with probability
My sock drawer contains two red socks, two white socks, and two blue socks. For three days in a row, I pull out two socks out of my sock drawer at random. What is the probability that I get matching read more ..

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Guest Apr 14, 2023

121

How many real solutions exist for this system of equations?

How many real solutions exist for this system of equations?
y = x2 + 4
y = 4x
A. zero read more ..

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Guest Apr 14, 2023

153

counting

Help I need this
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

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Guest Apr 14, 2023

147

Probability

Help meee hard problems
Valeria has three coins, each of which has a probability of 1/2 of coming up heads. On her first turn, she flips all three coins. If all three come up heads, then she stops. Otherwise, for her second turn, read more ..

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Guest Apr 14, 2023

157

Counting

How many solutions are there to the equation u+v+w+x+y+z=10
where u, v, w, x, y, and z are nonnegative integers, and x is at most 2?

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Guest Apr 14, 2023

181

help me pls

What is the length of a 30° - arc? if its area is 144πcm²
What is the length of a 90° - arc? if its area is 144πcm²

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Guest Apr 14, 2023

185

I GOT SQRT 40 BUT IT DOESNT WORK... I would appreciate it if someone helped me work this out!

Find the length of the missing side of the trapezoid below.

I GOT SQRT 40, BUT IT SAYS MY ANSWER IS WRONG read more ..

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Guest Apr 14, 2023

136

Vi=30 T=5 hallar que velocidad habra si fue lanzada de formoa vertical para arriba

Vi=30 Hallar que velocidad final despues de 5s habra si fue lanzada de formoa vertical para arriba

Guest Apr 14, 2023

129

Algebra

Let a and b be real numbers such that a-b=1 and a^3-b^3=1
(a) Find all possible values of ab
(b) Find all possible values of a+b
(c) Find all possible values of and a and b

Guest Apr 14, 2023

All Questions ⁺⁰237784 Questions

Algebra

geometry

what happend to chris

Geometry

Help Please!

Plz help!!! Thank You!!!

counting

polygon

Algebra

counting

Geometry

Probability

geometry

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

factoral

Fractions

Probability

How many real solutions exist for this system of equations?

counting

Probability

Counting

help me pls

I GOT SQRT 40 BUT IT DOESNT WORK... I would appreciate it if someone helped me work this out!

Vi=30 T=5 hallar que velocidad habra si fue lanzada de formoa vertical para arriba

Algebra

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