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Mathematics
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OpenStudy (anonymous):
Can someone help me? I need someone to tell me if the majority of my answers are right....
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jhonyy9 (jhonyy9):
where on what ?
OpenStudy (anonymous):
On 49 questions... I have a feeling that most of them are wrong and this is my final exam... I really don't want to fail it.
jhonyy9 (jhonyy9):
can you rewrite it here ?
OpenStudy (anonymous):
All of my answers and questions? Yes.
OpenStudy (anonymous):
1.Evaluate: -12 + 6
-6
2.Evaluate: -5 - (-2)
-3
3.Evaluate: 12 + 10 ÷ 2 - 3
8
4.Simplify the following expression: 8x - 10y + 5z - 5x - 16y + 6z
3x - 6y + 11z
5.Evaluate the following expression using the values given.Find 4x - 6y if x = -2, y = 3
-26
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jhonyy9 (jhonyy9):
1,2,3 are right
4 not is correct
5 is right
OpenStudy (anonymous):
I'm pretty sure, 4 is right.
jhonyy9 (jhonyy9):
not is because -10y-16y=-26y
jhonyy9 (jhonyy9):
ok ?
OpenStudy (precal):
3 is wrong
12+10/2-3
12+5-3
17-3
14
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OpenStudy (precal):
jhonyy9 is write about 4
it is wrong
should be
3x-26y+11z
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