All Questions ⁺⁰237785 Questions

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305

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help please cannot solve

Lines and are tangent to a circle, as shown below.
[asy]
unitsize(4 cm);
pair A, O, P, Q, R, T, U;
P = (0,0); <#> U = (1,0); <#> T = dir(40); <#> O = extension(P, P + dir(20), U, U + (0,1)); <#> A = intersectionpoint((U + 0.1*dir(63))--(U read more ..

Guest Jul 24, 2022

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285

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+4

Need Help With Homework

Please show steps or explain as I would like to learn how to solve future questions. Thank you :)

ay000 Jul 24, 2022

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318

3

Find all real numbers.

Find all real numbers that satisfy:

Guest Jul 24, 2022

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295

2

Need help fast plzzz.

Five times a number is divided by 7 more than the original number. If the result is 2, then what was the original number?

Guest Jul 24, 2022

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282

1

help help

In a class of 23 students, 9 play an instrument and 17 play a sport. There are 8 students who play an instrument and also play a sport. What is the probability that a student does not play an instrument given that they play a sport?

Guest Jul 24, 2022

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286

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need help plz

How many positive integers t will make the expression 19/t + 5/t + 2/t have an integral value?

Guest Jul 24, 2022

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303

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Inequality

Solve the inequality -4(x + 4) > x + 7 + 5(x + 2). Give the answer as an interval.

Guest Jul 24, 2022

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303

1

Inequality

Solve the inequality 2x - 5 <= -x + 12 - 3x + 19 Give the answer as a interval.

Guest Jul 24, 2022

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292

1

Algebra problem

The number (\sqrt{2}+\sqrt{3}+1)^3 can be written in the form a\sqrt{2} + b\sqrt{3} + c\sqrt{6} + d, where a, b, and c are integers. What is a+b+c+d?

Guest Jul 24, 2022

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260

1

Help pls fast

If I give my brother 5 dollars, then we will have the same amount of money. If instead, he gives me 14 dollars, then I'll have twice as much money as he will have. How much money does my brother currently have (in dollars)?

Guest Jul 24, 2022

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292

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divisors

How many positive integers divide evenly into either 144 or 196 or 150?

Guest Jul 24, 2022

Jul 23, 2022

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260

1

Coordinates

The equation of the line passing through (1,-11) and (-4,5) can be expressed in the form x / a + y / b = 1
Find a.

Guest Jul 23, 2022

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274

1

Function

Let f(x) = x^2 - 2x. What is the value of f(f(f(f(f(f(2)))))?

Guest Jul 23, 2022

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290

1

coordinates

Let A=(10,-10) and O=(0,0). Determine the sum of all x and y-coordinates of all points Q on the line y=-2x+6 such that angle OQA = 60 degrees.

Guest Jul 23, 2022

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285

1

stats

The mean of six numbers is 14. If one of the six numbers is removed, the mean becomes 5. What is the value of the number removed?

Guest Jul 23, 2022

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293

1

Quadratics

Find the largest value of c such that -2 is in the range of f(x) = x^2 + 8x + c.

Guest Jul 23, 2022

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302

1

Algebra

A cubic polynomial p(x) has leading coefficient 1, all real coefficients, and p(3 - 4i) = 0. If p(0) = −52, find p(x).

Guest Jul 23, 2022

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298

1

I need help super fast please.

Use interval notation to express the set of real numbers $x$ that satisfies The inequality

Guest Jul 23, 2022

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283

1

Inverse functions

Suppose f(x) = 3/(2 + x). If g(x)=f^{-1}(x)+9$, find g(3).

Guest Jul 23, 2022

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297

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Arithmetic sequences

The sequence of integers in the row of squares and in each of the two columns of squares form three distinct arithmetic sequences. What is the value of N?

read more ..

Guest Jul 23, 2022

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296

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Polynomials

Find the coefficient of z in the product (-3z^2 - 7z + 4)(6z^2 + 6z - 1).

Guest Jul 23, 2022

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295

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number theory

Find the least positive four-digit solution to the following system of congruences.

7x = 21 (mod 14)
2x + 18 = 16 (mod 9) read more ..

Guest Jul 23, 2022

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321

1

Inverse function

What is the inverse of f(x)=4-5x+7-3x?

Guest Jul 23, 2022

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299

1

plz help Voldemort

Let the roots of the polynomial x^2 + 7x - 2 be alpha and beta. Evaluate alpha^2*beta + alpha*beta^2.

Guest Jul 23, 2022

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