Answer:
89.49 if is the entire circle and 44.745 if is a semi circle
Step-by-step explanation:
57 / 2 = 28.5 this is the ratio
28.5 * 3.14 = 89.49
An easy way to answer this problem is to find the mid-point between the two given points, namely ( (4-2)/2, (1-11)/2 )=(1,-5).
Another way is to find a line through the two points, and select any point on the line.
Slope = (1-(-11))/(4-(-2))=12/6=2
Then use the point slope form to find the line:
y-1=2(x-4) which can be simplified to
y=2x-7
Put x=0, y=-7 => (0,-7)
Put x=1, y=-5 => (1, -5) [ as above ]
Put x=2, y=-3 => (2, -3)
....
The other x-intercept is (2,0)
Answer:
zero, because the discriminant is negative
Step-by-step explanation:
By writing the quadratic formula, we have the discriminant written in the root as;
b^2-4ac
Now, given the expression, we can see that the discriminant here is -19
What this mean is that we have a negative discriminant
Hence, we can conclude that the roots are complex and as such, none of the roots are real
Answer:
1071.8 to 1 decimal point
Step-by-step explanation:
The first thing you would do is multiply the 4/3, 3.14 and the 8^3
So we know that 8^3 is 8X8X8 which is 512
So the first thing you do I 4/3 X 3.14 X 512 = 160768/75 (2143.6 1DP)
Then you would divide this by 2
2143.6/2 = 1071.8