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312

Inverse functions

If f(x)=x^3+3x^2+3x+1, find f^{-1}(2).

Voldemort ●●●

Guest Jul 22, 2022

334

+30

Two rockets fly directly at each other. One travels at a speed of $8500$ miles per hour, and the other travels at a speed of $3500$ miles pe

Two rockets fly directly at each other. One travels at a speed of $8500$ miles per hour, and the other travels at a speed of $3500$ miles per hour. How many miles apart will they be one minute before they collide?

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Gordn Jul 22, 2022

260

Help

Solve the following system of equations:

Express your answer as an ordered pair of decimals read more ..

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Guest Jul 22, 2022

247

partial fractions

Enter (A,B,C) in order below if A, B, and C are the coefficients of the partial fractions expansion of (2x^2 + 3x - 5)/(x(x^2 - 1)) = A/x + B/(x - 1) + C/(x + 1).

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Guest Jul 22, 2022

-1

305

+30

Bricklayer Ben places 42 bricks per hour. Bricklayer Bob places 36 bricks per hour. Bricklayer Bob worked twice as many hours as Bricklayer

Bricklayer Ben places 42 bricks per hour. Bricklayer Bob places 36 bricks per hour. Bricklayer Bob worked twice as many hours as Bricklayer Ben, and the two of them placed a total of 1254 bricks. How many bricks did Bricklayer Ben place?

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Gordn Jul 22, 2022

262

fractions on math

Ocre bought a mixtures of pencils. 2/3 of the pencils were green. 1/2 of the remaining pencils were white. There were 5 blue pencils. How many pencils were there altogther?

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Guest Jul 22, 2022

260

Inequality

Solve the inequality 4t^2 <= t - 2 - 3t^2 + 8t.

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Guest Jul 22, 2022

269

algebra

If x = 1 + x/(2 + x/(2 + x/(2 + x/(2 + ...)))), then what is x?

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Guest Jul 22, 2022

250

Exponents

Find the value of y such that 9^y = 3^5 * 9^6 * 81^4/27^3.

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Guest Jul 22, 2022

241

Answer Help

the number of streetlights in a town is growing linearly. Five months ago ( n = 0)
there were 131 lights. Now (n = 5) there are 146 lights. If this trend continues, how
many more months from the present will it take to reach 679 light? read more ..

Tkendrick208 Jul 22, 2022

Jul 21, 2022

-1

301

+30

In a 24 km race, during which each runner maintains a constant speed throughout, Alice crosses the finish line while Becky is still 8 km fro

In a 24 km race, during which each runner maintains a constant speed throughout, Alice crosses the finish line while Becky is still 8 km from finishing and Caitlin is 12 km from finishing. When Becky crosses the finish line, Caitlin still has $d$ kilometers read more ..

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Gordn Jul 21, 2022

-2

313

+30

In physics, Ohm's law says that current through a wire, $I$, is directly proportional to voltage, $V$, and inversely proportional to resista

In physics, Ohm's law says that current through a wire, $I$, is directly proportional to voltage, $V$, and inversely proportional to resistance, $R$: \[ I=V/R. \]It's also true that resistance is directly proportional to the length of the wire. We have read more ..

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Gordn Jul 21, 2022

292

help algebra

Let u and v be the solutions to 3x^2 + 5x + 7 = 2x^2 + 10x + 4. Find 1/u^2 + 1/v^2.

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Guest Jul 21, 2022

-1

355

+30

The students in Mrs. Reed's English class are reading the same $760$-page novel. Three friends, Alice, Bob and Chandra, are in the class. Al

The students in Mrs. Reed's English class are reading the same $760$-page novel. Three friends, Alice, Bob and Chandra, are in the class. Alice reads a page in $20$ seconds, Bob reads a page in $45$ seconds and Chandra reads a page in $30$ seconds. Before read more ..

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Gordn Jul 21, 2022

291

help with inequality

Solve the inequality x(x + 6) > 16 + 4x.

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Guest Jul 21, 2022

270

suppose you have one quart of water/juice mix that is 40% juice, and you add 3 quarts of water. What percent juice is the final mix?

suppose you have one quart of water/juice mix that is 40% juice, and you add 3
quarts of water. What percent juice is the final mix?

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Tkendrick208 Jul 21, 2022

245

need help with this

Solve for $x$: $(x - 8)(x + 1) = 7(x + 4) - 13$.

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Guest Jul 21, 2022

264

plz help

Find $t$ if $3/(t + 8) = (t + 1)/(t - 15)$.

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Guest Jul 21, 2022

239

help

Find all $x$ such that $x^2 - 11x + 15 = (x - 4)(x + 8)$

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Guest Jul 21, 2022

275

Parametric Equations: Cycloids

The path of a general cycloid is parameterized by and .
(a) Find the length of one arch of the cycloid.
(b) Let be the length you found in part (a). One end of a string of length is read more ..

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Guest Jul 21, 2022

207

Quadratic inequalities

Solve the inequality (s+8)(s-1) <= s^2

Guest Jul 21, 2022

-1

293

Answer it

https://web2.0calc.com/questions/please-answer-this_15

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Guest Jul 21, 2022

240

Quadratics

Find the greatest value of $t$ such that\[\frac{t^2 - t -56}{t-8} = \frac{3}{t+5}.\]

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Guest Jul 21, 2022

258

Help!!

Solve for $x$: $\frac{x+1}{x-1} = \frac{x-2}{x+2}$

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Guest Jul 21, 2022

199

Parabola

Find the vertex of the graph of the equation y = -2x^2 + 8x - 15 - x^2 + x + 4.

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Guest Jul 21, 2022

All Questions ⁺⁰237785 Questions

Inverse functions

Two rockets fly directly at each other. One travels at a speed of $8500$ miles per hour, and the other travels at a speed of $3500$ miles pe

Help

partial fractions

Bricklayer Ben places 42 bricks per hour. Bricklayer Bob places 36 bricks per hour. Bricklayer Bob worked twice as many hours as Bricklayer

fractions on math

Inequality

algebra

Exponents

Answer Help

In a 24 km race, during which each runner maintains a constant speed throughout, Alice crosses the finish line while Becky is still 8 km fro

In physics, Ohm's law says that current through a wire, $I$, is directly proportional to voltage, $V$, and inversely proportional to resista

help algebra

The students in Mrs. Reed's English class are reading the same $760$-page novel. Three friends, Alice, Bob and Chandra, are in the class. Al

help with inequality

suppose you have one quart of water/juice mix that is 40% juice, and you add 3 quarts of water. What percent juice is the final mix?

need help with this

plz help

help

Parametric Equations: Cycloids

Quadratic inequalities

Answer it

Quadratics

Help!!

Parabola

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