Length = √area = √81 = 9
diagonal = √2 * side = √2*9 = 9√2
Answer:
A) 991=43x+475
B) 12 hours
Step-by-step explanation:
Answer:
AB = 2
Step-by-step explanation:
Using the secant- secant theorem, that is
PA × PB = PD × PC , substitute values
10(10 + AB) = 8(8 + 7)
100 + 10AB = 8 × 15 = 120 ( subtract 100 from both sides )
10AB = 20 ( divide both sides by 10 )
AB = 2
So,
9*27 + 2*31 - 28 = n
We use PEMDAS.
Multiply from left to right.
243 + 2*31 - 28 = n
243 + 62 - 28 = n
Add or subtract from left to right.
305 - 28 = n
277 = n
Note for probability, if it will never happen the P = 0. If it must happen P = 1.
So certain to happen:
C. P=1
