Answer:
Step-by-step explanation:
M angle A equals 130 degrees, M angle B equals 50 degrees and M angle C equals 130 degrees. key words to remember is interior, exterior and corresponding angles.
Answer:
168÷4
=42
Distance covered by train in 4 hours=168kms
Distance covered by train in 1 hour =168kms÷4hrs
=42
Thus distance covered by train in 1 hour is 42kms.
Air c. or aluminium B. because of the mediums comment make up it might travel faster
Answer:
x² + 3x - 28
Step-by-step explanation:
We need f(x)*g(x), or
(x + 7)(x - 4)
Use FOIL to multiply, Foil is Firsts, Outsides, Insides, Lasts. It tells you the terms to multiply together...
Firsts: x(x) = x²
Outsides: x(-4) = -4x
Insides: 7(x) = 7x
Lasts: (7)(-4) = -28
So we have
x² - 4x + 7x - 28
simplify to
x² + 3x - 28
The probability that the aircraft is overloaded is 0.6141; since this is a greater than 50% chance, the pilot should either reduce the number of passengers on the plane or require them to reduce their baggage.
The z-score for this is given by
z = (X-μ)/σ = (169-180.2)/38 = -11.2/38 = -0.29.
Using a z-table (http://www.z-table.com) we see that the probability of weights being less than this (the area to the left of this score) is 0.3859; to find the probability that the weight is greater than this (to the right), we subtract from 1:
1-0.3859 = 0.6141.
