A negative divided by a negative is always a positive. 4 can go into 18 only 4 times to get 16 with a remainder of 2. 2 is half of four, therefore -4 can go into -18 4.5 times.
The answer is 4 1/2 or 4.5.
I hope this helps ^-^
Answer:
simplify: 14/40
not simplify: 7/20
I don't know if it's right but i'm trying to help :)
Answer:
49 + 9x units
Step-by-step explanation:
perimeter is sum of all the sides

Alternatively, you can write radicals as rational exponents, so that you get

Then recalling that

, you have
Answer:
slant length (l) = 7.5 m
perimeter of base P = 40 m
area of base B = 100 m^2
Surface Area = 250 m^2
Step-by-step explanation:
Surface area of a pyramid formula
1/2Pl + B
1/2 (40)(7.5) + 100
150 + 100 = 250 square meters