Answer:
q1 3
x
^2
−
5
x
+
10
q2 1
−
y^
4
q3 exact form: x
=
−
5
/6
decimal form
: 0.83r
q4 1
/2
z^
2
+
1
Step-by-step explanation:
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<em><u>Answer:</u></em>
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<em><u>13 and 5</u></em>
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<em><u>Step-by-step explanation:</u></em>
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<em><u>x+y=18</u></em>
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<em><u>x-y=8</u></em>
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<em><u>_____</u></em>
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<em><u>2x=26</u></em>
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<em><u>x=13</u></em>
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<em><u>So the first number must be 13</u></em>
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<em><u>13+y=18</u></em>
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<em><u></u></em>
<em><u>y=5</u></em>
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<em><u></u></em>
<u><em>And the second number must be 5</em></u>
His new texting speed will be 3.5 characters per second this is because of the texting rate increasing per month is 0.5, just multiply that by 3 because there is 3 months than add that to 2 seconds
It is a linear equation so there can be 1 solution, 0 solutions, or infinite solutions
4(x-5)=4x-24
distribute
4x -20 = 4x-24
subtract 4x from each side
-20 = -24
no solutions