Answer:
P ( less than 3 car accidents) = .6
Step-by-step explanation:
P ( less than 3 car accidents)
P (1 car accident) + P (2 car accidents)
.25+.35
.6
We are given that

.
Substitute x with 5-x, then the above equation becomes:

, that is

So, we have the following system of equations:
i)

ii)

multiply the first equation by -4, so that we eliminate f(5-x)'s
i)

ii)

adding the 2 equations side by side we have:

expanding the binomial, and collecting same terms we have:


dividing by -5:

dividing by 3:

Answer:
The answer is √91 feet (which is the same as 9.54 feet).
Imagine this as a right triangle. A length of the foot is actually a hypotenuse (c). The distance from wall's base to the ladder foot is one of the sides of the triangle (let it be a).
So, using the Pythagorean theorem:
c² = a² + b²
It is given:
c = 10 feet
a = 3 feet
b = ?
c² = a² + b²
⇒ 10² = 3² + b²
100 = 9 + b²
b² = 100 - 9 = 91
⇒ b = √b² = √91 ≈ 9.54 feet
Answer: whats the answer
Step-by-step explanation:
Answer
15
Step-by-step explanation:
Please mark brainliest.