Simplify 18 - 2[x (x - 5)].
Question
Updated 11/13/2014 6:33:35 PM
This conversation has been flagged as incorrect.
Flagged by janezeshun [11/13/2014 6:33:35 PM]
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Original conversation
User: Simplify 18 - 2[x (x - 5)].

Weegy: (x - 4)(x + 3)

= x^2 + 3x - 4x - 12

= x^2 - x - 12

User: A person has 17 coins, all nickels and dimes, worth \$1.25. How many nickels are there?

Weegy: d + n = 17 0.1d + 0.05n = 1.25 d = 17 - n 0.1 (17 - n) + 0.05n = 1.25 1.7 - 0.1n + 0.05n = 1.25 1.7 - 0.05n = 1.25 -0.05n = -0.45 n = 9 9 Nickels, 8 Dimes
smp0784|Points 4142|

User: -|-7 + 3|

Weegy: -|-7 + 3|

= -(7 - 3)

= -7 + 3

= -4

User: Describe the location of the point that has the following coordinates. positive abscissa, positive ordinate

a_dgzmn|Points 96|

User: Evaluate -3x3 - 4x for x = -1.

Weegy: -3x^3 - 4x for x = -1

-3(-1)^3 - 4(-1);

-3(-1) - (-4);

3 + 4;

= 7

User: The length of a rectangle is 3 inches more than its width, and its perimeter is 22 inches. Find the width of the rectangle.

User: Find the thirtieth term of the following sequence. -6, -4, -2, 0, ...

Weegy: 32 is 20th term of the following sequence. -6, -4, -2, 0.
jeifunk|Points 36717|

User: What is the fractional equivalent of 0.2323...?

Weegy: 23/99
smp0784|Points 4142|

User: Solve for c. ab - c = 9

Question
Updated 11/13/2014 6:33:35 PM
This conversation has been flagged as incorrect.
Flagged by janezeshun [11/13/2014 6:33:35 PM]
Rating
5
18 - 2[x (x - 5)]
= 18 - 2(x^2 - 5x)
= 18 - 2x^2 + 10x

Confirmed by sujaysen [11/14/2014 8:19:19 AM]
5
The thirtieth term of the following sequence:-6, -4, -2, 0, ... is 52 .
Common difference = 0 -(-2) = -2 - (-4) = -4 - (-6) = 2
30th term = -6 + (30 - 1)*2 = -6 + 58 = 52
Confirmed by sujaysen [11/14/2014 8:21:51 AM]
5
ab - c = 9
c = ab - 9
The solution for c is ab - 9 .
Confirmed by sujaysen [11/14/2014 8:22:34 AM]

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