The answer is 7 because the mean is an average. So if you add up all the numbers and then divide that number by the amount of numbers listed then that will get you your answer which is 7
4+5+6+7+8+9+10=49
49/7=7
x=96
all interior angles equal 180
Subtract exterior andgles by 180 to get interior angles because they are supplementary
180-134=46
180-130=50
Get the third angle inside the triangle
180-50-46=84
subtract by 180 to get x because they are supplementary
180-84=96
Therefore x =96
Answer:
<u>Equivalent expressions</u>
Step-by-step explanation:
3(x – 4) – 2(2.5x - 1)
3x - 12 -5x +2
<u>-2x - 10</u>
and -2(x + 5)
<u>-2x - 10</u>
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<u>Yes, They are Equal</u>
