21.
the equation of a circle with center at (h,k) and radius r is
(x-h)²+(y-k)²=r²
so
(x-1)²+(y-2)²=5²
(x-1)²+(y-2)²=25
22.
the equation of a circle with center at (h,k) and radius r is
(x-h)²+(y-k)²=r²
so
(x-(-3))²+(y-5)²=2²
(x+3)²+(y-5)²=4
The formula for this is t = k/r, read "t varies inversely as r". If the info they give us is 4 hours and 35 miles per hour, we find that k = 140. Now use that 140 in another equation to solve for t: t = 140/45, and t = 3.1 hours
Answer:
Step-by-step explanation:
if you divide the 63 by the 12 it would be 5.25 so it would take 6 fridays to save up!
The reason they cannot be added is because of 11 and 12. They are odd and even numbers and they have no link to each other. Because of this, you cannot add the exponents.
Answer:
4 gallons per gift basket
Step-by-step explanation:
20 x 4 = 80