Answer:
I believe the answer ur looking for is 3 (D)
Step-by-step explanation:
The number of cows is given by
So, after 
years, the number of cows will be
We want this number to be twice as much as the original:
First of all, we can cancel 14 from both sides:
Finally, on the right hand side, we can use the exponent rule
to get
To solve this equation, we must impose that the two exponents are the same:
And clearly this is true if and only if 
. So, it will take 5 years for the cow heard to double in number.
You can do the exact same steps to find the doubling time for the sheeps.
Answer:
(x+3)²+(y+5)² = 36
Step-by-step explanation:
The general equation of a circle is expressed as;
(x-a)²+(y-b)² = r² where;
(a, b) is the centre of the circle
r is the radius of the circle
Given
Centre (-3, -5)
a = -3 and b = -5
radius r = 6units
Substitute
(x-a)²+(y-b)² = r²
(x-(-3))²+(y-(-5))² = 6²
(x+3)²+(y+5)² = 36
hence the required equation is (x+3)²+(y+5)² = 36
Answer:
11 4/5
Step-by-step explanation:
First, I would start off by turning that dreadful mixed number into an improper fraction (it's just easier).
Multiply the whole number by the denominator and then add the numerator.
14 x 4 + 3 = 59 (this becomes your new numerator)
So what is 4/5 of 59/4?
4/5 = .8 so multiply 59/4 by .8 to get 11.8
This would be 11 4/5 as a mixed number and 59/5 as an improper fraction
