9514 1404 393
Answer:
2
Step-by-step explanation:
Each image point is twice as far from the origin as its preimage point. Each image segment is twice as long as its preimage segment. (LM=2, L'M'=4, for example)
The scale factor is 2.
So alll BUT 80 were sold
198=80+sold
subtract 80 from both sides
118=sold
so if 1.75 per book
amount collected=number of books times cost per books
amount collected=118 times 1.75
amount collected=206.5
the amount colected is $206.50
Answer:
90
Step-by-step explanation:
5+3=8 total ratio
5/8 × 144 = 90
Answer:
a=-0.4
Step-by-step explanation:
2(4a+1)=3a
8a+2 = 3a
5a+2=0
5a=-2
a=-0.4
The area of the shaded region is the quarter circle minus the isosceles right triangle. The area of quarter-circle is pi*r^2/4=pi*8^2/4=16pi. The area of triangle is 8*8/2=32, so the area is 16pi-32.
The perimeter of the shaded region is the length of arc plus the segment. The length of arc is pi*2r/4=pi*16/4=4pi, and the length of the segment is 8*\sqrt(2) according to pythagorean's theorem. The total perimeter is 4pi+8*\sqrt(2).