V=(4/3)(pi)(r^3)
r=7
Hope this’ll help
Answer:
a. Find the measure of each central angle.
The central angle of a circle = 360 °
Now Pie is cut into 10 equal sectors
Angle of each sector is given by
Angle of sector = Total central angle/number of sectors


Hence , the central angle of one slice of pie is 36°
b. If the diameter is 50 in., find the length of an arc of one of the sectors.
length of an arc of one of the sectors =



X= 3x + 6 / 3 = 6 (im pretty sure)
ANSWER

Or

EXPLANATION
The given polynomial is

where a=1,b=k, c=30
Let the zeroes of this polynomial be m and n.
Then the sum of roots is

and the product of roots is

The square difference of the zeroes is given by the expression.

From the question, this difference is 169.
This implies that:





We substitute the values of k into the equation and solve for x.


The zeroes are given by;


When 5 is added to 3 more then a certain number, the result is 19
x + 3 + 5 = 19
x + 8 = 19
x = 19 - 8
x = 11 <== ur number