What is the expression in factored form? x2 + 14x + 48 A. (x + 6)(x - 8) B. (x + 8)(x - 6) C. (x - 8)(x - 6) D. (x + 6)(x + 8)
Question
Updated 6/3/2014 11:18:48 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [6/3/2014 11:05:52 PM]
Original conversation
User: What is the expression in factored form? x2 + 14x + 48 A. (x + 6)(x - 8) B. (x + 8)(x - 6) C. (x - 8)(x - 6) D. (x + 6)(x + 8)

Weegy: D. (x + 6)(x + 8) is the answer.

User: Simplify the expression. (3 + i) - (2 - 2i) A. 1 + 3i B. 5 - i C. 4i D. -1 - 3i

Weegy: B. 5 - i
Booknerd_lizzy|Points 350|

User: The function y = 16t2 + 486 models the height y in feet of a stone t seconds after it is dropped from the edge of a vertical cliff. How long will it take the stone to hit the ground? Round to the nearest hundredth of a second. A. 7.79 seconds B. 11.02 seconds C. 0.25 seconds D. 5.51 seconds

Weegy: The answer is 5.51 seconds
jeifunk|Points 8461|

User: What is the expression in factored form? 16x2 - 25 A. (4x - 5)2 B. (4x + 5)(-4x - 5) C. (4x + 5)(4x - 5) D. (-4x + 5)(4x - 5)

User: What value completes the square for the expression? x2 - 18x A. 9 B. -9 C. 81 D. -81

Weegy: C. 81 completes the square for the expression.

User: What is the expression in factored form? 9x2 - 12x + 4 A. (-3x - 2)2 B. (-3x + 2)(3x - 2) C. (3x - 2)2 D. (3x + 2)2

Weegy: C. (3x - 2)2. I assume you mean 9x^2 - 12x + 4.
eturker|Points 2852|

User: The function h = -t2 + 95 models the path of a ball thrown by a boy where h represents height, in feet, and t represents the time, in seconds, that the ball is in the air. Assuming the boy lives at sea level where h = 0 ft, which is a likely place the boy could have been standing when he threw this ball? A. his backyard B. an underground cave C. a ladder D. a bridge

Weegy: B. an underground cave. He is currently situated below sea level. Source:
eturker|Points 2852|

User: Solve the equation. x2 + 18x + 81 = 25 A. 14, 4 B. –4, –14 C. 14, –14 D. –4, 4

Weegy: C. 81 completes the square for the expression.

User: What is the equation, in standard form, of a parabola that models the values in the table? x -2 0 4 f(x) -7 3 -73 A. y = -3x2 - 3x + 4 B. y = 4x2 + 3x - 3 C. y = -4x2 - 3x + 3 D. y = -3x2 - 4x + 3

Weegy: D. y = -3x^2 - 4x + 3 is the answer.

User: Use the Quadratic Formula to solve the equation. -2x2 - 5x + 5 = 0

Weegy: 0. A.
ephraimzRN|Points 2278|

User: What is the fourth term of (d + 4b)3? A. -b3 B. -64b3 C. b3 D. 64b3

Weegy: B. -64b3 is the fourth term of (d + 4b)^3

User: What is a quartic function with only the two real zeros given? x = -4 and x = -1 A. y = x4 + 5x3 + 5x2 + 5x + 4 B. y = x4 - 5x3 - 5x2 - 5x - 4 C. y = -x4 + 5x3 + 5x2 + 5x + 4 D. y = x4 + 5x3 + 5x2 + 5x - 5

Weegy: D. y = x4 + 5x3 + 5x2 + 5x - 5
Comforse49|Points 60|

User: Find the roots of the polynomial equation. -x3 + 5x2 - 11x + 55 = 0

User: Use the Rational Root Theorem to list all possible rational roots of the polynomial equation x3 - 4x2 + 7x - 8 = 0. Do not find the actual roots. A. –8, –1, 1, 8 B. –8, –4, –2, –1, 1, 2, 4, 8 C. 1, 2, 4, 8 D. no possible roots

Weegy: D. no possible roots is the answer to the question.

User: Use the Binomial Theorem to expand the binomial. (x + 2y2)3 A. x3 - 3x2y2 + 3xy4 - y6 B. x3 + 6x2y2 + 12xy4 + 8y6 C. x3 - 6x2y2 + 12xy4 - 8y6 D. x3 + 3x2y2 + 3xy4 + y6

Weegy: (x + 2y2)3 = B. x3 + 6x2y2 + 12xy4 + 8y6

User: Find all the zeros of the equation. -4x4 - 44x2 + 3600 = 0 A. 5, -5, 6i, -6i B. 5, 6i C. 5, -5, 6i, 0 D. -5, -6i

Weegy: A. 5, -5, 6i, -6i
rugmaker|Points 2525|

User: Over two summers, Ray saved \$900 and \$500. The polynomial 900x2 + 500x represents his savings at the beginning of the third year, where x is the growth factor. (The interest rate r is x - 1.) What is the interest rate he needs to start the third year with \$1600 in savings? A. 1.1% B. 0.1% C. 8.4% D. 264%

Weegy: A. 1.1%
philliphughes|Points 130|

User: Find the roots of the polynomial equation. x3 - 2x2 + 10x + 136 = 0 A. –3 ± 5i, –4 B. 3 ± 5i, –4 C. –3 ± i, 4 D. 3 ± i, 4

Question
Updated 6/3/2014 11:18:48 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [6/3/2014 11:05:52 PM]
Rating
8
(3 + i) - (2 - 2i)
= 3 + i - 2 + 2i
= 1 + 3i
Confirmed by yumdrea [6/3/2014 11:09:50 PM]
8
x^2 + 18x + 81 = 25
x^2 + 18x + 81 - 25 = 0
x^2 + 18x + 56 = 0
(x + 4)(x + 14) = 0
x = -4 or x = -14
Confirmed by yumdrea [6/3/2014 11:09:27 PM]
8
-x^3 + 5x^2 - 11x + 55 = 0
-x^2(x - 5) - 11(x - 5) = 0
(x - 5)(-x^2 - 11) = 0
x - 5 = 0 or -x^2 - 11 = 0
x = 5 or x = ± (sqrt 11)i
Confirmed by andrewpallarca [6/4/2014 12:58:23 PM]
8
x^3 - 2x^2 + 10x + 136 = 0
(x + 4)(x^2 - 6x + 34) = 0
x + 4 = 0 or x^2 - 6x + 34 = 0
When x + 4 = 0, x = -4
When x^2 - 6x + 34 = 0
x = [6 ± sqrt (-100)]/2 = (6 ± 10i)/2 = 3 ± 5i
The solution is {-4, 3 + 5i, 3 - 5i)
Confirmed by andrewpallarca [6/4/2014 12:58:51 PM]

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