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376

Algebra 1

-2x-5y=9
3x+11y=4
solve using elimination

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Guest Jan 11, 2022

403

Math, please help. Thank you

"Rocky is 44 years old," said Jenna to her friend.
"She is? But your brother said your dog was younger than that. And I just asked him a
few minutes ago. Weird."
"Hey!" said Alex snooping by the door. "That's because Jenna read more ..

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Guest Jan 11, 2022

337

Please help

Ryan, Steven and Tim shared a sum of money. Ryan received 2/5 of the
amount received by Steven and Tim. Ryan and Steven received 1/2 of the
amount received by Tim. Tim received $80 more than Ryan. Find the total sum
of money shared read more ..

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Guest Jan 11, 2022

377

Counting

How many continuous paths from A to B, along segments of the figure, do not revisit any of the six labeled points?

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Guest Jan 11, 2022

343

Algebra

Let a and b be the solutions to 5x^2 - 11x + 4 = 0. FInd 1/a^2 + 1/b^2.

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Guest Jan 11, 2022

241

Tell whether the ordered pair is a solution of the inequality. y is greater than or equal to -9x-1; (-1,-5)

Guest Jan 11, 2022

245

Domain

Suppose the domain of f is (-1,1). Define the function g by j(x) = f(1/(1 - x)). What is the domain of j?

Guest Jan 11, 2022

276

Functions

Some functions that aren't invertible can be made invertible by restricting their domains. For example, the function x^2 is invertible if we restrict x to the interval [0inf), or to any subset of that interval. In that case, the inverse function is sqrt(x). read more ..

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Guest Jan 11, 2022

233

Domain

Suppose the domain of f is (-1,1). Define the function k by k(x) = k(sqrt(x + 2) + 2). What is the domain of k?

Guest Jan 11, 2022

411

+14

Help Understanding this problem

Log_2(3x)+log_2(2)=4 I simplified it to log_2(3x)=3 but that's it

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SLAYER32beast Jan 11, 2022

312

Probability

Rolling four standard dice, what is the probability that the product of the four results is a multiple of ?

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Guest Jan 11, 2022

387

Help plz

4 balloons = 2/8 of a smile
____ balloons = 2/4 of a smile

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Guest Jan 11, 2022

265

Algebra

Find a monic polynomial of degree 4, in x, with rational coefficients such that sqrt(2) + sqrt(5) is a root of the polynomial.

Guest Jan 11, 2022

299

System

Let (x_1, y_1), (x_2, y_2), ..., (x_n, y_n) be the real solutions to the system
x + 8y = 7
x^3 + 8y^3 = 343/81
Enter x_1 + y_1 + x_2 + y_2 + ... + x_n + y_n. read more ..

Guest Jan 11, 2022

408

Number Theory

For how many integer values of between 1 and 474 inclusive does the decimal representation of terminate?

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Guest Jan 11, 2022

353

Polynomials

If the product (3x^2 - 5x + 4)(7 - x) can be written in the form ax^3 + bx^2 + cx + d, where a,b,c,d are real numbers, then find 8a + 4b + 2c + d.

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Guest Jan 11, 2022

412

Ratio

I have a bag with red and green marbles in it. At the moment, the ratio of red marbles to green marbles is 3:2. If I add red marbles and green marbles, the ratio will be . How many red marbles will be in the bag after I add more?

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Guest Jan 11, 2022

319

HELP FAST IT IS DUE IN 5 MINUTES

A network of roads connects locations T, O, W, N, and S as shown. The accompanying table shows the tolls between adjacent locations. What is the least expensive total toll to travel from T to W along the TOWNS road network?
read more ..

Guest Jan 11, 2022

499

HELP DUE IN ONE MINUTE

In triangle ABC, D is the midpoint of side AB and E is the midpoint of side BC. The area of triangle ABC is 56 square units. Find the number of square units in the area of triangle DBE.

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Guest Jan 11, 2022

312

HHELP DUE IN ONE MINUTE

How many quadrilaterals can be outlined by selecting two or three of the four smaller congruent equilateral triangles shown at the right without moving any of the triangles? Congruent but non-identical quadrilaterals are considered different.

Guest Jan 11, 2022

344

Number Theory

For some positive integer n, the number 110n^3 has 110 positive integer divisors, including 1 and the number 110n^3. How many positive integer divisors does the number have?

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Guest Jan 11, 2022

392

Trapezoid

Let WXYZ be a trapezoid with bases XY and WZ. In this trapezoid, ZXW=105 degrees, XWZ=43 degrees, and XYZ=147 degrees. Find YXZ, in degrees.

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Guest Jan 11, 2022

864

help pls

Find the sum of all solutions to the equation.
$4x(x-3) = 23$

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Guest Jan 11, 2022

Jan 10, 2022

408

Number Theory

N is a four-digit positive integer. Dividing N by 9 , the remainder is 5. Dividing N by 7, the remainder is 3. Dividing N by 5, the remainder is 4. What is the smallest possible value of N?
<read more ..

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Guest Jan 10, 2022

All Questions ⁺⁰237785 Questions

Algebra 1

Math, please help. Thank you

Please help

Counting

Algebra

Tell whether the ordered pair is a solution of the inequality. y is greater than or equal to -9x-1; (-1,-5)

Domain

Functions

Domain

Help Understanding this problem

Probability

Help plz

Algebra

System

Number Theory

Polynomials

Ratio

HELP FAST IT IS DUE IN 5 MINUTES

HELP DUE IN ONE MINUTE

HHELP DUE IN ONE MINUTE

Number Theory

Trapezoid

help pls

Number Theory

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