Answer:
-4x^2 -2x+6
Step-by-step explanation:
2x^2+(4x-6x^2)+9-(6x+3)
Distribute the minus sign
2x^2+4x-6x^2+9-6x-3
Combine like terms
2x^2 -6x^2 +4x -6x +9-3
-4x^2 -2x+6
Answer:
80,
Step-by-step explanation:
the way to find the volume of a prism is the following, get 3 measurements, the length, the width and the height (in this case you already have all 3) so simply multiply they together(2*5*8=80)
are you sure you wrote that right?????
All angles of a triangle sums up to 180 degrees
a° = 3a + 90 = 180°
3a = 180 - 90
3a = 90
a = 90÷3
a = 30°
b = 180-(25+90)
b = 180 - 115
b = 65°
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