All Questions

274

Counting problem

How many different three-letter sets of initials are possible using the letters through ?

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Guest Jan 31, 2022

259

Coordinates

The equation of the line passing through (1,11) and (4,-5) can be expressed in the form

x/a + y/b = 1
read more ..

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Guest Jan 31, 2022

283

Square roots

Simplify the expression 1/sqrt(2) + 3/sqrt(8) + 5/sqrt(32).

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Guest Jan 31, 2022

Jan 30, 2022

424

+52

Please help !!!!!

The vertex of the parabola described by the equation$y=-3x^2-30x-81$ is (m,n). What is n?

Let be an ordered pair of real numbers that satisfies the equation$x^2+y^2=14x+48y$ . What read more ..

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PiggyEthyn Jan 30, 2022

156

Number Theory

Determine the number of positive integers a less than 12 such that the congruence ax == 3 (mod 12) has a solution in x.

Guest Jan 30, 2022

266

Quadratic equations

There are 5 quadratics below. Four of them have two distinct roots each. The other has only one distinct root; find the value of that root.

4x^2 + 16x + 8
-x^2 + 4x + 5 read more ..

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Guest Jan 30, 2022

276

Algebra

What is the sum of all possible values of k for which x^2 + kx - 10x + 36 is the square of a binomial?

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Guest Jan 30, 2022

304

+1679

Need help with algebra

What is the sum of all possible values of k for which x^2 + kx - 10x + 36 is the square of a binomial?

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wiseowl Jan 30, 2022

292

+1679

Confused with congruences

Suppose that x is an integer that satisfies the following congruences:
3 + x == 2^2 (mod 3^3)
5 + x == 3^2 (mod 5^3)
7 + x == 4^2 (mod 7^3) read more ..

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wiseowl Jan 30, 2022

291

+52

help please

The vertex of the parabola described by the equation$y=-3x^2-30x-81$ is (m,n). What is n?

Let be an ordered pair of real numbers that satisfies the equation$x^2+y^2=14x+48y$ . What read more ..

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PiggyEthyn Jan 30, 2022

278

Algebra

If we write sqrt(2) + sqrt(3) + 1/(2*sqrt(2) + 3*sqrt(3)) in the form (a*sqrt(2) + b*sqrt(3))/c such that a, b, and c are positive integers and c is as small as possible, then what is a + b + c?

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Guest Jan 30, 2022

159

geometry

If CE:EA:AD:DB=2:3:4:, then what is [ACD]/[ABE]?

Guest Jan 30, 2022

261

Probability

I have a special 6-sided dice such that
The probability of rolling a 2 is twice the probability of rolling a 1,
the probability of rolling a 3 is thrice the probability of rolling a 1,
the probability of rolling a 4 is quadruple the probability read more ..

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Guest Jan 30, 2022

225

Polynomial Interpolation

Let $p(x)$ be a polynomial of degree 5 such that
\[p(n) = \frac{n}{n^2 - 1}\]
for n = 2, 3, 4, ... , 7$. Find
p(8)

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Guest Jan 30, 2022

162

Graphing

The equation y = (x + A)/(Bx + C) , where A,B, and C are integers, is shown below. What is A + B + C?

Guest Jan 30, 2022

284

Help on coins

Nicholas has two times as many quarters as pennies and three times as many dimes as pennies. Nicholas has a total of forty-two pennies, dimes and quarters. The total value of the coins is $5.67. How many of each coin does he have?

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Guest Jan 30, 2022

178

notations

f:x⟼4x2−6 Evaluate f(2y−1)

Guest Jan 30, 2022

266

Geometry

Find the area of the triangle whose two angles are 30 degrees and 45 degrees, and the side included between them has length units.

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Guest Jan 30, 2022

280

PLS HELP

Given that

compute
read more ..

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Guest Jan 30, 2022

227

Please answer this question

In right triangle ABC, angle C = 90 degrees. Median Line AM has a length of 19, and median Line BN has a length of 18.
What is the length of the hypotenuse of the triangle?

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Guest Jan 30, 2022

287

+113

Help

Andy had 1/2 as much money as Brenda. Brenda had 1/2 as much money as Cathy. If Cathy has $78 more than Andy, how much money did they have altogether?

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tacoBRO1023 Jan 30, 2022

256

+113

Anyone can help

Roy had $190 more than Joanne. 1/3 of her money is $30 more than 25% of his money. How much did Roy have?

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tacoBRO1023 Jan 30, 2022

283

Pls help. Algebra

Let and Find

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Guest Jan 30, 2022

270

coordinates

For what value of c will the circle with equation x^2 + 8x + y^2 + 6y + c = 0 have a radius of length ?

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Guest Jan 30, 2022

281

Algebra

If ax^3 + bx^2 + x - 6 has x + 2 has a factor and leaves a remainder 4 when divided by x - 1, find the values of a and b.

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Guest Jan 30, 2022

All Questions ⁺⁰230706 Questions

Counting problem

Coordinates

Square roots

Please help !!!!!

Number Theory

Quadratic equations

Algebra

Need help with algebra

Confused with congruences

help please

Algebra

geometry

Probability

Polynomial Interpolation

Graphing

Help on coins

notations

Geometry

PLS HELP

Please answer this question

Help

Anyone can help

Pls help. Algebra

coordinates

Algebra

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