Step-by-step explanation:
Find the product, sum and factors which are P=56, S=15 and F=8,7 respectively.
r²+15r+56=0
replacing with the factors in the equation
=> r²+8r+7r+56=0
r(r+8)+7(r+8)=0
(r+8)(r+7)=0
=> r= –8 and –7
Answer: The general term is an = 4n
Step-by-step explanation:
Answer:
8.28 units
Step-by-step explanation:
The formula for the circumference of a circle is 
where
is the circumference of the circle
is the diameter of the circle
We know form our problem that the circumference of our circle is 26.28 units, so
. Let's replace that value in our formula and find
:


Divide both sides of the equation by 




The diameter of the circle that has a circumference of 28.26 units is 8.28 units.
Answer:
its b
Step-by-step explanation:
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