Answer:
<em>r = 0.055555.....</em>
Step-by-step explanation:
3(1+6r)=14-12 Write out formula.
3+18r=2 Distributive Property Form.
(3-3)+18r=2-3 Subtract 3 to both sides.
(18/18)r=-1/18 Divide both sides by 18
r=0.055555..... or -1/18.
If the last number is 1 -> 21 <50
if the last number is 3 -> 63 > 50 OK
if the last number is 5 -> 105 which is not a two digits number
if the first number is 4 -> 42<50
if the first number is 6 -> we get 63 again
if the first number is 8 -> we get 83 which is not odd
63 is the only answer
Answer:
y = 0.5x – 8.5 or y = 1/2x - 17/2
Step-by-step explanation:
hope that helps
A^2+b^2=c^2 (Pythagoran theorem)
-> 30^2 + length^2 = 78^2
-> length = √6084-900 = <span>√5184 = 72 ft
=> area = length x width = 72 x 30 = 2160 ft^2</span>
