Answer:
Step-by-step explanation:
Given
Required
Plot a graph
First, we need to determine the minimum and maximum values of x and y
For x:
Minimum = 0
For maximum; Let y = 0
Solve for x
For y:
Minimum = 0
For maximum; Let x = 0
Solve for y
See Attachment for graph
Answer:
Option b is correct.
Step-by-step explanation:
From the given condition : Seven less than the quotient of a number, x, and twelve is five times the number.
Here, the number is x
The quotient of a number x and twelve is expressed as ,
Seven less than the quotient of a number, x, and twelve is expressed as,
Five times the number mean,
Therefore, we have an equation in the form of <em>x</em> from the given condition as:
.
Answer:
BC ≈ 19.4 cm
Step-by-step explanation:
using the cosine ratio in the right triangle
cos71° = =
=
( multiply both sides by BC )
BC × cos71° = 6.3 ( divide both sides by cos71° )
BC = ≈ 19.4 cm ( to 3 sig. figs )