Answer:
9) 3rd side = 2x+2y
10) 5a^2 + 6a - 3
Step-by-step explanation:
9) 10x+5y - ( 3x+ 4y) = 7x + y
7x + y - ( 5x - y ) = 2x + 2y
10)
Answer:
b Square
Step-by-step explanation:
I literally just counted
Answer:
0.3569 is the probability that they have a mean pregnancy between 266 days and 268 days.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 268 days
Standard Deviation, σ = 15 days
We are given that the distribution of lengths of pregnancies is a bell shaped distribution that is a normal distribution.
Formula:

Standard error due to sampling =

P(pregnancy between 266 days and 268 days)

Answer:
Each plane ticket was $189.3
Step-by-step explanation:
If all tickets were at the same price, and for five tickets the person paid $946.50, then to find out how much was each ticket, we simply have to divide this quantity by 5:
$946.5 / 5 = $189.3
Answer:
if it is a regular quadrilateral and each angle is equal then its 90 degrees
Step-by-step explanation: