Answer:
$237.92
Step-by-step explanation:
0.85 x 279.90 = 237.915 = ~237.92
To find the equation of a line knowing two points it passes through, we must first find the slope and then substitute the x and y values to figure out the y intercept.
First thing is to find the slope using the formula m = Δy ÷ Δx
m = 5 - (-2) ÷ 4 - (-5)
Now we simplify
m = 7 ÷ 9
Our equation so far is y = 7/9x + b. Now we can substitute the values of x and y from a point to figure out the answer. The equation here uses the point (4,5)
5 = 7/9 · 4 + b
Get b on one side
5 - 28/9 = b
Simplify
b = 1 + 8/9
That makes the equation of the line y = 7/9x + (1 + 8/9)
Answer:
Yes, the students answer is reasonable.
Step-by-step explanation:
Answer to the first question
It’s 2 bro try to do it if I’m wrong I’m sorry but it’s 2
Answer:

Step-by-step explanation:
A straight angle is equal to 180° degrees. Since both 9x +4 and 3x -18 is supplementary then I can make this claim below

All we have to do now is to solve for x
