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3. Evaluate the expression for a = –1 and b = 5. 5a – 7
Question
Asked 4/12/2014 12:47:32 PM
Updated 4/13/2014 8:11:50 PM
1 Answer/Comment
Flagged by yeswey [4/13/2014 8:10:29 PM]
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User: 3. Evaluate the expression for a = –1 and b = 5. 5a – 7

User: 4. Evaluate the expression for a = –1 and b = 5. (ab)2

Question
Asked 4/12/2014 12:47:32 PM
Updated 4/13/2014 8:11:50 PM
1 Answer/Comment
Flagged by yeswey [4/13/2014 8:10:29 PM]
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When a = –1 and b = 5,
(ab)^2 = [(-1)(5)]^2 = (-5)^2 = 25
Added 4/13/2014 8:11:50 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/13/2014 8:16:11 PM]
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Questions asked by the same visitor
5. Simplify the expression. 9xy2 – 11xy2
Weegy: The answer is 2xy^2. User: 6. Simplify the expression. -3(b – 7) User: Solve the equation. Check your answer. m/20 = 5/4 User: 8. Solve the equation. Check your answer. 4y + 5 = – 31 Weegy: 8y. 2(4y) = 8y User: 10. A cheetah ran 300 feet in 2.92 seconds. What was the cheetah’s average speed in miles per hour? Weegy: 70 miles per hour User: 11. Write a compound inequality that the graph could represent. (More)
Question
Updated 4/8/2014 7:02:41 PM
3 Answers/Comments
9xy^2 – 11xy^2 = -2xy^2

Added 4/8/2014 7:00:54 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/8/2014 7:10:22 PM]
m/20 = 5/4
m = (5/4)*20
m = 25
Added 4/8/2014 7:01:42 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/8/2014 7:10:26 PM]
4y + 5 = – 31
4y = -31 - 5 = - 36
y = -36/4 = -9
Added 4/8/2014 7:02:41 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/8/2014 7:10:31 PM]
4y + 5 = – 31
Question
Not Answered
Updated 4/12/2014 2:02:49 PM
1 Answer/Comment
4y + 5 = – 31

4y = -31 - 5

4y = -36

y = -36/4

y = -9
Added 4/12/2014 2:02:49 PM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [4/12/2014 2:03:42 PM]
Simplify the rational expression. 3x - 6/ x-2
Weegy: (X-2)/( x^2 +3x-10) = (x-2)/[(x-2)(x+5)] = 1/(x+5). Ans = 1/(x+5). This is provided that the sign between x^2 and 3x is indeed '+'. (More)
Question
Updated 4/18/2014 10:19:31 PM
1 Answer/Comment
(3x - 6)/(x - 2)
= 3(x - 2)/(x - 2)
=3 Where x can not be 2.
Added 4/18/2014 10:19:31 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [4/19/2014 3:14:09 PM]
4. Evaluate the expression for a = –1 and b = 5. (ab)2
Question
Updated 4/8/2014 9:26:12 PM
1 Answer/Comment
When a = –1 and b = 5
(ab)^2 = [(-1)(5)]^2 = (-5)^2 = 25
Added 4/8/2014 9:26:12 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/8/2014 9:28:08 PM]
8. Solve the equation. Check your answer. 4y + 5 = – 31
Weegy: 4y + 5 = – 31; 4y = -31 - 5; 4y = -36; y = -36/4; y = -9 (More)
Question
Updated 4/15/2014 1:47:42 PM
0 Answers/Comments
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