Im not %100 sure but i think its 24a^2 - 42ab - 24b2
Answer:
Sydney = 22 years old
Step-by-step explanation:
DeVaughn = D
Sydney = S
D = 3S
D + S = 88
Substitute in 3S for D
3S + S = 88
4S = 1888
S = 22
Hope this helps :)
<span>If 4 cans of coffee cost 2.40, then divide this by 4 to find out how much one can of coffe costs: 2.40/4 = .60. Now, we need to find 1/4 of .60. To do so, again divide by 4: .60/4 = .15. So, the cost of 1/4 can of coffee will be 15 cents.</span>
The first is 6.1 using the distance formula.
distance = sqrt((x2-x1)^2+(y2-y1)^2)
plug it all in and simplify
you get 6.1
the next one is the midpoint. u just take add both values of x together and divide by 2 to get the x coordinate and then add together both values of y and divide by 2 to get the y value. the midpoint is (8,7)
to find the perimeter of the rectangle, add the lengths of each side. 25 for the height and you would add 2 of those and then there are 2 sides as long as the length that you would add. it would be height+height+length+length which is 25+25+77+77=204. remember units so 204 ft
The answer would be 3.20000 u can round that off
