<span>f''(x) means function is of grade 1
f(x) = ax + b
f'(x) = a
f'(5) = 1 </span>⇒ a = 1
f(4) = -2
f(4) = 1×4 + b
-2 = 4 + b
b = -6
f(x) = x - 6
4.56 / 3.42 = 1.333 m per second (or 1 1/3m per second)
Answer:
BC=XY
Step-by-step explanation:
you know 2 angles. you need a side for ASA. BC and XY is the only one that would be included.
Answer:

Step-by-step explanation:
Given

Required
Find a
Take log of both sides

Apply law of logarithm

Divide both sides by a

Multiply both sides by -9

Apply law of logarithm

Cancel out log

Rewrite as:

Apply law of indices

