440030
Descripción
Test por Niat Habtemariam, actualizado hace más de 1 año
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Creado por Niat Habtemariam
hace más de 10 años
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Pregunta 1
Pregunta
Iman starts with $1 on Day 1 and then doubles her money everyday thereafter. On which day will she first have more than $10,000?
Respuesta
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Day 15
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Day 14
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Day 10
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Day 6
Pregunta 2
Pregunta
Kickball games last a maximum of 50 minutes and ties are allowed. However, there is a "mercy" rule. A game will end if at least 40 minutes have passed and one team is ahead by at least 10 points. If "t" is time, in minutes and "d" is the difference of points what compound describes the "mercy" rule?
Respuesta
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t ≥ 10 and d ≥ 10
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40 ≤ t < 60 and d ≥ 10
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t ≤ 40 or d ≥ 10
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40 ≥ t < 60 or d ≥ 10
Pregunta 3
Pregunta
Find the solution set of | X - 2 | <6
Respuesta
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{ x | -8 < x < 4 }
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{ x | -4 < x < 8 }
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{ x | x < 4 }
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{ x | x < 8 }
Pregunta 4
Pregunta
What is the solution set to the inequality | 3x - 2 | < 7?
Respuesta
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{ x | -5/3 < x < 3 }
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{ x | -3 < x < 5/3 }
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{ x | x > 3 or x < -5/3 }
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{ x | x > 5/3 or x < -3 }
Pregunta 5
Pregunta
What is the complex conjagate of 7 + √-8
Respuesta
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7+ 4i√2
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7- 4i √2
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7+ 2i√2
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7- 2i√2
Pregunta 6
Pregunta
What is the complex conjugate of .5 - 2i ?
Respuesta
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2- 2i
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2- .5i
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.5i - 2
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.5 + 2i
Pregunta 7
Pregunta
Which equation has the same range as y = (x+3)² ?
Respuesta
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y= (x + 3)²
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y= x² + 9
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y= 2 (x - 3)² + 1
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y= (x - 5)²
Pregunta 8
Pregunta
Evaluate this function for x = -3 f(x) = 4x³ -5x² + 2x -4
Respuesta
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-163
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-151
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-73
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53
Pregunta 9
Pregunta
Find the 100th term of this arithmetic sequence: 5, 8, 11, 14, 17...
Respuesta
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302
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305
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308
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311
Pregunta 10
Respuesta
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Image:Algebra3.PNG (image/PNG)
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Image:Algebra1.PNG (image/PNG)
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Image:Algebra.PNG (image/PNG)
Pregunta 11
Pregunta
On the first of every month, a new library receives a new shipment of 575 book titles. If the library starts the beginning of the first year with 3,000 book titles and does receive a shipment that month, how many book titles will it have at the end of 3 years?
Respuesta
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42,900
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23,700
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5,363
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4,150
Pregunta 12
Pregunta
Simplify this expression: 3(x² + 2) - 5(2x² + 3x - 4) + 2(-x² - 4)
Respuesta
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-5x² - 15x + 18
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5x² - 15x - 22
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-9x² - 15x + 18
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-9x² + 15x - 22
Pregunta 13
Pregunta
Which is an equivalent form of this expression?
Respuesta
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3x² - 6x - 9
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3x² - 7x - 11
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3x² - 9x - 16
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3x² - 19x - 4
Pregunta 14
Pregunta
Richar has 5 shirts, 6 pairs of jeans, and 3 vests. How many different outfits, each composed of a shirt, a pair of jeans, and a vest, can he make?
Respuesta
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6
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14
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33
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90
Pregunta 15
Pregunta
A high school's enrollment is 27% juniors and 31% seniors. What is the probability that a student chosen at random from this high school will be a junior or a senior?
Respuesta
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\[\frac{1}{25}\]
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\[\frac{2}{25}\]
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\[\frac{29}{50}\]
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\[\frac{87}{100}\]
Pregunta 16
Pregunta
Guests at a wedding reception must chose 1 food item from each of these 3 categories.
Main Dish Entreé: steak, fish, chicken
Vegetable: carrots, green beans, potatoes
Salad: garden, Caesar
How many different dinner combinations are possible?
Respuesta
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8
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18
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56
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336
Pregunta 17
Pregunta
Which inequality represents this statement? On the number line, x is less that 3 units away from 5.
Respuesta
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x - 5 <3
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x - 3 < 5
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| x - 5 | < 3
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| x - 3 | < 5
Pregunta 18
Pregunta
If c - d = 7 and c = 3 -4i , what is d?
Respuesta
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-4 - 4i
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-4 + 4i
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4 - 4i
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4 + 4i
Pregunta 19
Pregunta
Simplify (2√5)² - (3 - √-6)(3 + √-6).
Respuesta
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1
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5
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11
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17
Pregunta 20
Pregunta
What is the completely simplified expression of \[\frac{x³ - 4x}{x⁵ - 8x²}\]
Respuesta
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\[\frac{x³ - 4x}{x⁵ - 8x²}\]
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\[\frac{1}{x(x+2)}\]
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\[\frac{x² - 4}{x(x³ - 8)}\]
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\[\frac{x + 2}{x(x² + 2x + 4)}\]
Pregunta 21
Pregunta
What is the complete factorization of 16r³ⁿ - 54q⁶ᵃ , where a, n, r, and q are integers?
Respuesta
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2(8r³ⁿ - 27⁶ᵃ)
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(4r²ⁿn + 6qᵃ)(4rⁿ - 9q⁵ᵃ)
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2(4r²ⁿ + 3qᵃ)(2rⁿ - 9q⁵ᵃ)
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2(2rⁿ - 3q²ᵃ)(4r²ⁿ + 6rⁿq²ᵃ + 9q⁴ᵃ)
Pregunta 22
Pregunta
Given that f(-3) =0, f(-1) =0, completely factor f(x) = x⁴ + 5x³ + 3x² - 13x - 12.
Respuesta
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(x - 3)(x - 1)(x + 2) (x - 2)
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(x + 3)(x + 1)(x + 2) (x - 2)
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(x - 3)(x - 1)²(x² + x - 4)
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(x + 3)(x + 1)(x² + x - 4)
Pregunta 23
Pregunta
One printer takes 3 hours to complete a job. Another printer can do the same job in 4 hours. When the job runs on both printers how many hours will it take to complete
Respuesta
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\[\frac{7}{24}\]
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\[\frac{7}{12}\]
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\[\frac{12}{7}\]
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\[\frac{24}{7}\]
Pregunta 24
Pregunta
Ten students will participate in a spelling contest. How many outcomes for first, secons, and third place are possible?
Respuesta
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30
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90
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120
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720
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