Judging by the model I would assume that ΔDBC is congruent to ΔDBA.
Thus, line CD should be congruent to line AD as well, which the solution should be line CD=13 units.
Answer:
-15
Step-by-step explanation:
(-15) remove brackets
-15
L=2w+6
260=lw
Substitute for l
260=w(2w+6)
260= 2w^2+6w
2w^2+6w-260=0
2(w^2+3w-130)
2(w+13)(w-10)
w=-13, w=10
Since width cannot be negative it must be 10
260=l(10)
26=l
Final answer: length-26 ft, width-10ft
F(x)=18.1+2.2ln(x+1), when x=14
f(14)=18.1+2.2ln(14+1)
f(14)=18.1+2.2ln(15)
f(14)≈24.06 ft (to nearest hundredth of a foot)
Answer:
6.5 weeks.
55+50=105
35+60=95
It gets too wide when we double again.
55+ 100 =155
35+150=185
Therefore 55+70 =125
35+105= 125 Still too wide.
55+60=115
35+90= 125
The answer is between 6+ 7 weeks.
We then look at days.
Divide 55 weeks into 6.5 weeks less one day. Then apply 6.5
8.5 x 6.5 = 55 but when we plus 8.5+6.5=15
Divide 35 weeks into 6.5 weeks no remainder
5.5 x 6.5 = 35.75 =12
We see the ratio is 4:5
Banks round down and up for .5 answers.
Therefore both decimals round up so the answer is 6.5 weeks.
Step-by-step explanation: