Answer:
10.98 days is 10.98/3.66 = 3 half life periods and half of the mass is lost at each half life. You can do this in your head. I have!!
Step-by-step explanation:
A. c + 7 ≤ 3
c ≤ -4
a = 2
b. c - 3 > 1
c > 4
b = 3
c. c - 7 < 3
c < 10
c = 2
He needs 13 cans of paint.
The lateral area is given by the area of 5 rectangles, whose dimensions are 15 by 5:
5(15)(5) = 375
Divide this by 30:
375/30 = 12.5 ≈ 13
49 cm > 4 dm
because 1 dm = 10 cm
Glad I could help, and good luck!
AnonymousGianstFan
Answer:
225 ft squared
Step-by-step explanation:
Area is length by width and since its a square the length and width are the same.
15 x 15 = 225