Algebra

Problem 301

Solve the linear equation 25n+13=2725n + 13 = -27 for the unknown variable nn.

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Problem 302

Solve for yy in the equation 4=y+234=\frac{y+2}{3}.

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Problem 303

Solve for ww in the equation 4.5=1.5w4.5 = 1.5w, then check your solution.

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Problem 304

Determine if the linear function f(x)=29xf(x) = 2 - 9x is increasing, decreasing, or constant.

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Problem 305

Find the values of xx that satisfy x3=6|x-3|=6.

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Problem 306

Solve the exponential equation 3x=813^{x}=81.

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Problem 307

Solve the linear equation 34z+1=40-\frac{3}{4} z + 1 = -40 for the variable zz.

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Problem 308

Find the value of yy when x=1x=1 in the equation y=3x+2.5y=-3x+2.5.

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Problem 309

Find the equation of the line passing through the points (6,20)(6, 20) and (8,42)(8, 42).

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Problem 310

Evaluate the quadratic expression a2+5a+1a^{2} + 5a + 1 when a=4a = -4.

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Problem 311

Solve for xx using addition and multiplication principles, given 73x+13=9-\frac{7}{3} x+\frac{1}{3}=-9.

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Problem 312

Eliminate x-terms in system: 3x+5y=53x+5y=5, multiply by ? on both sides; 2x8y=6-2x-8y=-6, multiply by ? on both sides.

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Problem 313

How many times is 8×1058 \times 10^{5} larger than 4×1034 \times 10^{3}? 2,000

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Problem 314

Find the issue with the equation 4+(10/5)=624+(10 / 5)=6-2. The correct answer is (C) The two sides do not evaluate to the same value.

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Problem 315

Find the rational numbers in the set {157,2,1,49,1,3,3.25}\left\{-\frac{15}{7},-\sqrt{2}, \sqrt{1}, \sqrt{\frac{4}{9}}, 1, \sqrt{3}, 3.25\right\}.

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Problem 316

Find the value of xx that satisfies the equation x12=4x-12=-4.

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Problem 317

Solve for ff where f+26f+2 \geq 6.

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Problem 318

Evaluate the expression 35x3 \cdot 5^{x} when x=2x = 2.

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Problem 319

Solve the linear equation 3x+7y=153x + 7y = 15 for either xx or yy.

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Problem 320

Solve for xx in the equation 1+65x=31 + \frac{6}{5x} = 3.

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Problem 321

Find the linear equation y=mx+by = mx + b describing a baby's weight, where the baby weighs 7 lbs at birth and gains 5 lbs every 2 months.

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Problem 322

Solve for uu in the equation 6u28=2(u6)-6 u-28=-2(u-6). Simplify the solution.

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Problem 323

Find the correct number line for the expression 31.5-3-1.5.

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Problem 324

Find the value of xx if the numbers 13, 18, and xx have a mean of 18.

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Problem 325

Solve for xx when g(x)=5x+2=7g(x) = 5x + 2 = 7.

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Problem 326

Solve the exponential equations. Verify solutions using graphing technology. a) 43x=8x34^{3x} = 8^{x-3} b) 27x=92x327^{x} = 9^{2x-3} c) 1252y1=25y+4125^{2y-1} = 25^{y+4} d) 162k3=32k+316^{2k-3} = 32^{k+3}

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Problem 327

Find the polynomials in standard form. Choose all correct options. 5x5+4x4+12x323x+155x^5 + 4x^4 + 12x^3 - 23x + 15, 2x412x2+5x92x^4 - 12x^2 + 5x - 9, 53x5 - 3x, 4x2+12x13x34x^2 + 12x - 13x^3.

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Problem 328

Find the value of dd given the equation d2=21d^{2}=21. Express the solution in simplest radical form.

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Problem 329

Find the equation of the parabola that passes through the points (3,5),(4,7)(3,5), (4,7), and (5,5)(5,5).

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Problem 330

Solve absolute value equations: 1) 4x=x25|4x| = x^2 - 5, 2) 2x2=5x+32x^2 = |5x + 3|, 3) 2(x4)25=3|2(x-4)^2 - 5| = 3, 4) 0=x22x340 = |x^2 - 2x - 3| - 4.

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Problem 331

Solve the linear equation 7(m12)=5m7(m-12)=5m for the value of mm.

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Problem 332

Solve for the variable bb given the equation b+a=20b+a=20.

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Problem 333

Solve for the value of aa in the equation 72=8(7+a)-72=8(-7+a).

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Problem 334

Solve for the value of ss in the equation s682=932s - 682 = 932.

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Problem 335

Find the value of (k61)211(k \cdot 61)-211 for k=6k=6.

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Problem 336

Déterminer l'ensemble de définition de f(x)=2x2+x3f(x)=2x^2+x-3, f(x)=3x2x4f(x)=\frac{3x}{2x-4}, f(x)=x2+3x22xf(x)=\frac{x^2+3}{x^2-2x}, f(x)=x3x3f(x)=\frac{x^3}{|x|-3}.

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Problem 337

Solve the linear equation 16x=7x16-x=7x for the unknown variable xx.

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Problem 338

¿Cuál es la razón de cambio de yy con respecto a xx en la ecuación lineal y=5x+1y = -5x + 1?

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Problem 339

Find the value of xx that satisfies the linear equation 9x+82x=5x5+x9x + 8 - 2x = -5x - 5 + x, rounded to two decimal places.

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Problem 340

Solve the quadratic equation 12x23x72=0\frac{1}{2} x^{2}-3 x-\frac{7}{2}=0 for xx.

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Problem 341

Evaluate 5xy+7x5xy + 7x when x=8,y=6x=8, y=-6.

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Problem 342

Find the number of points xx a student needs to score on a 50-point test to get a 78% score. The proportion is x50=78100\frac{x}{50} = \frac{78}{100}.

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Problem 343

Write an expression for 3x+43x + 4 using words. Choose the correct phrase: the sum of three times a number and four.

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Problem 344

Solve vw2+y=xvw^2 + y = x for ww. Given v=5,x=38,y=7v=5, x=38, y=-7, find ww.

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Problem 345

Solve for xx in the equation x=a2x+(a5)=(a+5)xx=a^{2}x+(a-5)=(a+5)x.
Find the indicated sets: (a) ACA \cup C, (b) ACA \cap C where A={1,2,3,4,5,6}A=\{1,2,3,4,5,6\}, B={2,4,6}B=\{2,4,6\}, and C={6,7,8,9,10}C=\{6,7,8,9,10\}.

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Problem 346

Find the product of the fractions (x2+x)/7(x^2 + x)/7 and 35/(xy+y)35/(xy + y).

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Problem 347

Find the equation for a number xx where 6 less than xx is 5.

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Problem 348

Graph the equation f(x)=5f(x) = -5 and find the slope.

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Problem 349

Solve the equation y3+3y2=4y+12y^{3} + 3y^{2} = 4y + 12.

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Problem 350

Solve the equation 132x=741-\frac{3}{2x}=\frac{7}{4} and identify it as conditional, inconsistent, or identity.

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Problem 351

Find the solution set to the equation 3a+5=3a7|3a+5| = |3a-7|.

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Problem 352

Evaluate y=x21y = x^{2} - 1 for x=2,1,0,1,2x = -2, -1, 0, 1, 2. Plot the (x,y)(x, y) pairs and graph the function.

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Problem 353

Solve the linear equation 43u=18-\frac{4}{3} u=-18 for the unknown variable uu.

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Problem 354

Solve for y given the equation 9=y429=\frac{y}{4}-2.

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Problem 355

Solve the quadratic equation 0.0625x2=0.125x+1.50.0625 x^{2} = 0.125 x + 1.5 for the value of xx.

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Problem 356

Solve for xx where 5x3=3x1\frac{-5}{x-3}=\frac{-3}{x-1}.

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Problem 357

Find aa given b=12b=12 and c=11c=11 using the equation a=29bca=29-b-c.

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Problem 358

Solve for yy using factoring or the quadratic formula: y26y+7=0y^{2} - 6y + 7 = 0

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Problem 359

Solve the quadratic equation x2+3=19x^{2} + 3 = 19 and select the correct solution(s).

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Problem 360

Simplify y74/y114y^{\frac{7}{4}} / y^{\frac{11}{4}} assuming positive variables. Express answer as AA or A/BA/B with positive exponents.

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Problem 361

Create a compound inequality using digits 1-9 (at most once each) that is equivalent to 2x<42 \leq x < 4. Explain your solution.

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Problem 362

Find the integer solutions to the quadratic equation (n7)2=12(n-7)^{2} = 12.

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Problem 363

Write an inequality to show the relationship between 2-2 and 5-5.

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Problem 364

Find the value of 3(1.5x+9)3(1.5 x + 9).

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Problem 365

Multiply the polynomials (4x+1)(4x+1) and (3x+5)(-3x+5).

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Problem 366

Solve the linear equation 6(a+3.9)=19.566(a + 3.9) = 19.56 using a different method. Show the steps.

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Problem 367

Calculate the value of x42\frac{x}{4}-2 when x=20x=20

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Problem 368

Find all values of a0a_0 that satisfy the equation 2a15=7|2a-15| = 7.

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Problem 369

Solve the linear equation 23ax+3=83x+9b\frac{2}{3} a x + 3 = \frac{8}{3} x + 9 b for constants aa and bb. Find the value of ab\frac{a}{b} if the equation has infinitely many solutions.

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Problem 370

Simplify given expressions. Click "Cannot be simplified" if applicable. 2y552y=\frac{2y-5}{5-2y}=\square and 6+yy6=\frac{-6+y}{y-6}=\square

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Problem 371

Find the value of xx if 9=4x9 = 4x.

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Problem 372

Find the value of kk that satisfies the equation k19=45k-19=45.

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Problem 373

Solve for the roots of 3x260x+741=03x^2 - 60x + 741 = 0 using the completing the square method.

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Problem 374

If f(x)=6x+7f(x)=6x+7, find the value of \nabla when xx increases by 1 unit.

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Problem 375

Solve for the value of xx in the linear equation x+11=18x+11=18.

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Problem 376

Solve the absolute value inequality x7>3|x-7|>3, which represents the set of all real numbers xx whose distance from 7 is greater than 3.

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Problem 377

Find the values of xx where the equations y=x224y = x^2 - 24 and y=x12y = x - 12 intersect.

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Problem 378

Simplify the expression x2+5x36x28x+16\frac{x^{2}+5 x-36}{x^{2}-8 x+16} and determine which of the following statements are true: 1) It could represent the difference of xx4\frac{x}{x-4} and 9x4\frac{-9}{x-4}. 2) It could represent the product of x+9(x4)2\frac{x+9}{(x-4)^{2}} and (x4)(x-4). 3) It could represent the sum of a2+5ax28x\frac{a^{2}+5 a}{x^{2}-8 x} and 3616\frac{-36}{16}. 4) It could represent the quotient of (x9)(x-9) and (x4)(x-4). 5) It is equivalent to the rational expression x+9x4\frac{x+9}{x-4}.

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Problem 379

Find the values of y that satisfy the equation y2=64y^{2}=64.

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Problem 380

Solve the quadratic equation y22y=12y^2 - 2y = 12 by completing the square. Enter the solutions separated by commas, or "DNE" if no real solution exists.

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Problem 381

Solve for ww in the equation 12=2w+5(w+8)12=2 w+5(w+8). Simplify the solution ww.

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Problem 382

Solve 5.14x+2.25>15.15.14x + 2.25 > 15.1. Express the solution as a rational number in decimal form to the tenths place, with xx first.

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Problem 383

Solve for pp using the square root property: (3p+2)2=8(3p+2)^2 = 8.

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Problem 384

Find the values of xx where the function f(x)=1(x3)(x4)f(x)=\frac{1}{(x-3)(x-4)} is not defined and discontinuous.

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Problem 385

Solve for yy in the inequality 4x+3y124x + 3y \geq 12.

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Problem 386

Find the largest value of xx that satisfies the equation 4x=312x\frac{4}{x} = 3 - \frac{1}{2}x. (Answer: 2)

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Problem 387

Solve for QQ and RR where RD\frac{R}{D} is a proper fraction with deg(R)<deg(D)\deg(R) < \deg(D). Also, evaluate t2+11t+24t+8\frac{t^{2}+11 t+24}{t+8}.

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Problem 388

Order the expressions using <, >, or = to compare (19)1\left(\frac{1}{9}\right)^{-1}, 929^{-2}, 919^{-1}, and (19)2\left(\frac{1}{9}\right)^{-2}.

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Problem 389

Evaluate g(4)g(4) for f(x)=5x23f(x)=5x^2-3 and g(x)=x+5g(x)=-x+5.

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Problem 390

Solve the linear equation 12(12v20)+4=128v-\frac{1}{2}(12 v-20)+4=-12-8 v for the variable vv.

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Problem 391

Determine if the degree of the polynomial f(x)=(x2)(x4)(x+1)f(x) = (x-2)(x-4)(x+1) is odd, even, or neither.

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Problem 392

Find the values of the variables dd, ee, and ff that make the given equations true: (2d)4=212\left(2^{d}\right)^{4}=2^{12}, 3575=e53^{5} \cdot 7^{5}=e^{5}, and 505f=545^{0} \cdot 5^{f}=5^{4}.

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Problem 393

Find the intersection point of the linear equations y=6x+2y = -6x + 2 and y=3x7y = 3x - 7.

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Problem 394

Find the missing value in the equation 12x+=4(3x+3)12x + \square = 4(3x + 3).

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Problem 395

Find the value of 23=82^3 = 8.

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Problem 396

Solve the equation 3a3=6a3a - 3 = 6a. Select the correct choice: A. a=33a = \frac{3}{3}, B. The solution is all real numbers, C. There is no solution.

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Problem 397

Simplify the product of 18\sqrt{18} and 63\sqrt{63}.

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Problem 398

Solve 2y296=02y^2 - 96 = 0 for real yy. Round your answer(s) to the nearest hundredth. If there is more than one solution, list them separated by commas. If there is no solution, click "No solution".

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Problem 399

Which equation is nonlinear? y=x24y=x^{2}-4 or 3y5x=113y-5x=11?

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Problem 400

Solve the equation 5=(x+7)1211-5=(x+7)^{\frac{1}{2}}-11 for the value of xx.

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