Answer:
d = 289
Step-by-step explanation:
The circumference is given by
C = pi *d
907.46 = pi *d
Using 3.14 for pi
907.46 = 3.14 d
Divide each side by 3.14
907.46 /3.14= 3.14 d/3.14
289 = d

So, we need to convert the fractions into equivent ones.
So, in order to get the numerator of the first fraction to match the numerator of the second fraction, we must mutltiply it by 2/2

Your first answer is 6.
Then, in order to get the denominator of second fraction to match the other side, you must multiply by 3/3

Your second answer is 3
Answer:
3.1
4.2
5.2
42
Step-by-step explanation: Just copy the other cone and find half of the diameter to find the radius the cones are congruent.
The equation when rewritten is 
<h3>Calculations and Parameters:</h3>
When we consider the vertex form of the equation:
y= 3(x-2)^2 - (x-5)^2
Expanding further:
2((x-0.5)^2 - 27/4) = 2( (x-0.5)^2)- 27/2
Thus, the final form of the equation would be 
Read more about equations here:
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No, a triangle can only add up to 180°