((r²+7r+10)/3) × (3r-30)/(r²-5r=50)
= Factoring the expression (r²+7r+10) we get (r+2)(r+5)
Then multiply it with the other numerator, we get
= (r+2)(r+5)(3(r-10)
Then we factorise
= (r²-5r-50) = (r+5)(r-10)
Multiplying it with the other denominator, we have;
= 3(r+5)(r-10)
Therefore dividing
(r+2)(r+5)(3(r-10)/(3(r+5)(r-10) we get;
= r+2
Therefore, the correct answer is r+2
The percentage is 52% and the fraction is 13/25
Answer:
Step-by-step explanation:
x ² - 36 = 5x
x²-5x-36=0
a=1 b= -5 c=-36
calculate the discriminent b²-4ac ......continu
(the number) - 2 = 25
(the number) = 25 + 2
(the number) = 27
Answer: (4) d=112 (7) 2.75 or 2 3/4
explanation: pictured below
