Answer:
x = - 3, y = - 1
Step-by-step explanation:
y = 7x + 20 -----> equation 1
4x - y = - 11
4x - ( 7x + 20 ) = - 11
4x - 7x - 20 = - 11
- 3x = - 11 + 20
- 3x = 9
x = 9 / - 3
x = - 3
Substitute x = - 3 in equation 1,
y = 7 ( - 3 ) + 20
= - 21 + 20
y = - 1
Hence,
x = - 3
y = - 1
Answer:
?= 4/3
Step-by-step explanation:
?×1/4=1/3
?/4=1/3
?=1/3×4
?=4/3
Answer:
it's a black screen
Step-by-step explanation:
black screen
The production cost is an illustration of a quadratic function
<h3>How to determine the equation</h3>
We have the following parameters:
- Computing components (a)
- Number of devices (x),
- Labor (b)
- Savings on reusable material (c)
Using the instructions in the question, the equation of the production cost would be:
Hence, the production cost is
<h3>Change the subject of the equation</h3>
In (a), we have:
Subtract bx - c from both sides
Divide through by x^2
Hence, the equation that represents the computing component is
Read more about equations and functions at:
brainly.com/question/1214333