Answer:
1. $25
2. 12
3. -12
4. -12
5. -25
Step-by-step explanation:
Answer:
1 5/12 miles.
Step-by-step explanation:
That is 2/3 + 3/4
= 8/12 + 9/12
= 17/12
= 1 5/12 miles.
Answer:
5
+5
Step-by-step explanation:
The core uses the value of the Pythagorean theorem and special angles.
Answer:
2 books
Step-by-step explanation:
If 7 books= 1 box
Then 30 books= 30÷7= 4 boxes with a remainder of 2 books
Therefore books left over= 2 books
SA=2H(L+W)+LW for open box
20=2H(4+W)+4(W)
distribute
20=8H+2WH+4W
divide both sides by 2
10=4H+WH+2W
solve for 1 variable, pick W
10-4H=WH+2W
10-4H=W(H+2)
(10-4H)/(H+2)=W
V=LWH
subsitute 4 for V, subsitute H for H and (10-4H)/(H+2) for W
V=(4)(H)(10-4H)/(H+2)
V=(40H-16H²)/(H+2)
find max value
take deritivitive of this thing
V'=-16(H²+4H-5)/((H+2)²)
using sign chart
sign changes from positive to negative at H=1
so at H=1
find W
W=(10-4H)/(H+2)
W=2
the dimeionts are
length=4ft
width=2ft
height=1ft
(the volume is 8 cubic feet)
