Answer: 2(x^3+2x+3x+6)
Step-by-step explanation:
Answer:
Step-by-step explanation:
The error is in the second step. For some unknown reason, the x was dropped and the 3 was subtracted from the 7.
It should be
9x +3x + 12 = 7
12x + 12 = 7 Subtract 12 from both sides.
12x + 12 - 12 = 7 - 12 Combine
12x = -5 Divide by 12
12x/12 = -5/12
x = -5/12 or x = - 0.4167
85.33 is the exact answer
The inscribed triangle is a right triangle. The diameter of the circle served as the hypotenuse of the triangle.
Angle C is 90°
Angle D = 36°/2 = 18°
<span>The measure of ∡DBC?
</span>
180° - 90° - 18° = 72°
Remember that interior angles of a triangle sum up to 180°.
Answer:
32cm
Step-by-step explanation:
8 x 4cm=32cm
