Answer: D. 3y + 5 − 7y = 4(-y + 1) + 5
Step-by-step explanation:
Original equation:
3y + 5 - 7y = 4(-y+1) + 5
Group like terms on the left of the equal sign and distribute on the right side of equal sign:
-4y + 5 = (-4y +4) + 5
Simplify:
-4y + 5 = -4y +9
Subtract 5 from both sides:
-4y = -4y + 4
Add 4y to both sides:
0 = 4
0 CANNOT equal 4 therefore, this equation has no solution.
Answer:
Step-by-step explanation:
area of blue triangle = 0.5×8×3 = 12 cm²
area of A = 5×12 = 60 cm²
area of C = area of A
area of B = 8×12 = 96 cm²
total surface area = 2×12 + 2×60 + 96 = 240 cm²
Answer:
Point B is the result of a 90° counterclockwise rotation.
Step-by-step explanation:
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