Answer:
The answer would be -2.7
Step-by-step explanation:
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<u>Answer:</u>
Equivalent expression of (-11x+31y) - 2(-x + 5y) is -9x +21y Hence option C is correct
<u>Solution:</u>
Given expression is (-11x+31y) - 2(-x + 5y)
Need to find equivalent expression from four given option.
Let’s first simplify the given expression
(-11x+31y) - 2(-x + 5y)
On opening the brackets we get
-11x + 31y + 2x -10y
Now bringing similar terms together and performing appropriate operation, we get
-11x + 2x + 31y + -10y
Taking common terms out we get,
=> (-11 + 2) x + (31 -10) y
= -9x +21y
Therefore Equivalent expression of (-11x+31y) - 2(-x + 5y) is -9x +21y.
The temperature should be D.0*c <span />
Functions can be used to represent real-life models
The complete table is:
![\mathbf{\left[\begin{array}{ccccccccccccc}{Months}&1&2&3&4&5&6&7&8&9&10&11&12&{Boat\ dealers}&60&75&90&105&120&105&90&75&60&45&30&15\end{array}\right] }](https://tex.z-dn.net/?f=%5Cmathbf%7B%5Cleft%5B%5Cbegin%7Barray%7D%7Bccccccccccccc%7D%7BMonths%7D%261%262%263%264%265%266%267%268%269%2610%2611%2612%26%7BBoat%5C%20dealers%7D%2660%2675%2690%26105%26120%26105%2690%2675%2660%2645%2630%2615%5Cend%7Barray%7D%5Cright%5D%20%7D)
The function is given as:

The value of the function from t = 1 to 12 is as follows:












So, the complete table is:
![\mathbf{\left[\begin{array}{ccccccccccccc}{Months}&1&2&3&4&5&6&7&8&9&10&11&12&{Boat\ dealers}&60&75&90&105&120&105&90&75&60&45&30&15\end{array}\right] }](https://tex.z-dn.net/?f=%5Cmathbf%7B%5Cleft%5B%5Cbegin%7Barray%7D%7Bccccccccccccc%7D%7BMonths%7D%261%262%263%264%265%266%267%268%269%2610%2611%2612%26%7BBoat%5C%20dealers%7D%2660%2675%2690%26105%26120%26105%2690%2675%2660%2645%2630%2615%5Cend%7Barray%7D%5Cright%5D%20%7D)
See attachment for the function of 
Read more about functions, tables and graphs at:
brainly.com/question/18588430
Answer:
y = - 2x - 4
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
To calculate m use the gradient formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (- 2, 0) and (x₂, y₂ ) = (0, - 4) ← 2 points on the line
m =
=
= - 2
not the line crosses the y-axis at (0, - 4) ⇒ c = - 4
y = - 2x - 4 ← equation of line