0, -1 I think. If that’s wrong use a calculator and take the answer and subtract it by the answer of the first problem
Answer:4x^3-2x^2+20x-10
Step-by-step explanation:
Answer:
8.9
Step-by-step explanation:
Use Pythagorean Theorem (a²+b²=c²)
a²+8²=12²
a²+64=144
Subtract 64 to both sides
a²=80
Square root both sides
a=√80
√80≈8.9
Answer:
30 degree
Step-by-step explanation:
acb is 60 equilateral triangle
then dac angle is 120 double of centre angle
triangle dac is isoceles so 2 into angle acd=180-120
then acd =30
