Answer:
b = sqrt(39)
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2+b^2 = c^2
5^2 + b^2 = 8^2
25+b^2 =64
b^2 =64-25
b^2 =39
Take the square root of each side
b = sqrt(39)
<span>3x + 4y = 10
4y = -3x + 10
y = -3/4x + 5/2
or
</span>f(x) = -3/4x + 5/2
answer: <span>C) f(x) = - 3/4 x + 5/2 </span>
Which one is it the top one or the bottom one?
Let
t = time, hours
h = height, feet
At 1 PM, the time and height are respectively
t₁ = 1 hour
h₁ = 4400 feet
At 4 PM, the time and height are respectively
t₂ = 4 hours
h₂ = 5600 feet
By definition, the mean hourly change in elevation is

Answer: 400 feet per hour