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221

Algebra question

a, b, c are positive
ab+bc=280
bc+ca=90
ca+ab=182
what is the value of a+b+c??

Guest Oct 24, 2021

362

Help on functions

The height (in meters) of a shot cannonball follows a trajectory given by h(t)=-4.9t+14t-0.4 at time t (in seconds). For how many seconds is the height of the cannonball at least 6 meters?

So I'm guessing then the function would read more ..

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Guest Oct 24, 2021

333

help function

For real numbers x, let
f(x) = x + 2 if x > 3
f(x) = 2x^2 + 2x + a if x <= 3
read more ..

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Guest Oct 24, 2021

353

Please answer in the old link

https://web2.0calc.com/questions/plz-help_97799

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Guest Oct 24, 2021

231

help trig

For all real numbers x except x=0 and x=1 the function f is defined by f(x -1/x)=1/x . Suppose 0<=t<=pi/2. Given that f(sec^(2)t)=(g(theta))^2 for some trigonometric function g, find g.
Enter your answer as one of the six read more ..

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Guest Oct 24, 2021

323

Graphing question

Find all values of x where there is a vertical asymptote for the equation y = (x + 1)/(x^2 - 2x + 1 - 15x + 4)

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Guest Oct 24, 2021

317

How many minutes is it until 5:00 if forty minutes ago it was four times as many minutes past 2 o'clock?

How many minutes is it until 5:00 if forty minutes ago it was four times as many minutes past 2 o'clock?

Any help is greatly appreciated!

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Guest Oct 24, 2021

323

Number Theory

How many positive integers N from 1 to 5000 satisfy the N is congruent to 11 modulo $27$?

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Guest Oct 24, 2021

437

Please help on functions question! Thank you!

The function satisfies for all real numbers x and y. Find all possible functions f.

I tried subsituting in simple values for x and y, but nothing works. A full explanation would be appreciated, as I am really confused! Thank you so read more ..

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Guest Oct 24, 2021

328

Digit problem

Solve (AB)^2 = ACD, where AB is a two-digit number, ACD is a three-digit number, and A, B, C, D are all different digits.

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Guest Oct 24, 2021

288

Algebra

I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 50 miles per hour instead, then I would have arrived 30 minutes later. How many miles did I drive?

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Guest Oct 24, 2021

216

plz help

An octagon is inscribed in a square so that the vertices of the octagon trisect the sides of the square. The perimeter of the square is 108 centimeters What is the perimeter of the octagon?

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Guest Oct 24, 2021

Oct 23, 2021

323

Find all possiblie values of if

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Guest Oct 23, 2021

235

In this problem, all angles are measured in degrees. Find the smallest angle x such that x>90 and

In this problem, all angles are measured in degrees.
Find the smallest angle x such that x>90 and

Guest Oct 23, 2021

326

Inequality

Solve the inequality 2x - 5 <= -x +12 + 3x + 7. Give your answer as an interval.

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Guest Oct 23, 2021

212

help math

In the diagram, square ABCD has sides of length 4, and triangle ABE is equilateral. Line segments BE and AC intersect at P. Point Q is on BC so that PQ is perpendicular to BC and PQ=x. Compute AP. read more ..

Guest Oct 23, 2021

446

Help please

How many ordered triples (x, y, z) of odd positive integers satisfy x + y + z = 47?

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Guest Oct 23, 2021

251

Algebra

If the product (3x^2 - 5x + 4)(7 - 2x) 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 Oct 23, 2021

332

help counting

Five cards are drawn at random from an ordinary deck of 52 cards. In how many ways is it possible to draw all black cards?

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Guest Oct 23, 2021

324

trig

In triangle XYZ, angle Z = 90 degrees, $\cos{Y}=\frac{7}{29}$, and XY = 25. What is tan X?

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Guest Oct 23, 2021

366

9th grade algebra question

Claire went into a movie theater and bought 9 bags of popcorn and 2 pretzels, costing a total of $80. Melanie went into the same movie theater and bought 7 bags of popcorn and 4 pretzels, costing a total of $72. Write a system of equations that could be read more ..

Guest Oct 23, 2021

237

Polygons

Polygon ABCDEF is a regular hexagon. What is the measure in degrees of angle ABE?

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Guest Oct 23, 2021

225

Polynomials

Let f, g, and h be polynomials such that h(x) = f(x) g(x). If the constant term of f(x) is -4 and the constant term of h(x) is 3, what is g(0)?

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Guest Oct 23, 2021

241

Polynomials

Suppose that f(x) and g(x) are polynomials of degree 4 and 5 respectively. What is the degree of f(x) + g(x)?

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Guest Oct 23, 2021

332

help plz

N is a four-digit positive integer. Dividing N by 9, the remainder is 5. Dividing N by 7, the remainder is 4. Dividing N by 5, the remainder is 1. What is the smallest possible value of N?

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Guest Oct 23, 2021

All Questions ⁺⁰233058 Questions

Algebra question

Help on functions

help function

Please answer in the old link

help trig

Graphing question

How many minutes is it until 5:00 if forty minutes ago it was four times as many minutes past 2 o'clock?

Number Theory

Please help on functions question! Thank you!

Digit problem

Algebra

plz help

Find all possiblie values of if

In this problem, all angles are measured in degrees. Find the smallest angle x such that x>90 and

Inequality

help math

Help please

Algebra

help counting

trig

9th grade algebra question

Polygons

Polynomials

Polynomials

help plz

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