Answer:
E
Step-by-step explanation:
17/10-(2/5x2/2)
17/10-4/10
=13/10
The line of best fit is given by the equation y = 1.56x - 4.105
<h3>
Linear equation</h3>
A linear equation is in the form:
y = mx + b
where y, x are variables, m is the rate of change (slope) and b is the y intercept.
Plotting the points on a graph using geogebra online tool:
The line of best fit is given by the equation y = 1.56x - 4.105
Find out more on Linear equation at: brainly.com/question/13763238
Completing the square
alrighty
minus 31 both sides
x²+12x=-31
take 1/2 of the linear coefient and square it
12 is the linear coefient
12/2=6, (6)²=36
add that to both sides
x²+12x+36=36-31
factor perfect square trinomial
(x+6)²=5
square root both sides, remember to take positive and negative root
x+6=+/-√5
so what you want to write is
x+6=√5 and
x+6=-√5
the solutions
minus 6 both sides
x=-6+√5 and -6-√5
<span>The graph of temperature versus pressure is a straigh line rising to the right. It Using the value above, the equation is P = 2.5522T + 699. The temperature is directly proportional to pressure. The pressure of the gas 0C using the equation,
</span>P = 2.5522T + 699
P = 2.5522(0) + 699
P = 699