Answer:
B
Step-by-step explanation:
Answer:
.
Step-by-step explanation:
Let C represent total daily charges in dollars and t represent time in hours.
We have been given that a plumber charges $50 for a service call plus $80 per hour.
The amount charged for t hours would be
.
The total amount charged for t hours would be
.
We are also told that plumber spends no longer than 8 hours a day at any one site, this means that time t have a restriction as:

Therefore, our required cost function would be
.
Answer:
A -2,-3, B 0,-3 C -1,1
Step-by-step explanation:
Answer:
x = 3 and x = -2
Step-by-step explanation:
The given equation is :

We need to solve the given equation.
We can solve it using Completing the Square method.
We take two numbers such that their product is -6 and sum is -1.
So,

so, the values of x are 3 and -2.
Answer:
x=14.4
Step-by-step explanation:
We apply the Sine Rule to solve for x:
#We first determine the acute angles of the larger right angles.

The smaller right angles shares one acute angle of 53.13°.
Therefore the x can be solved applying the Sine Rule again:

Hence, the length of x is 14.4