The <em>correct answer</em> is:
b.) –0.507x2 + 14.907x – 36.131
Explanation:
First we enter the data into a graphing calculator. The times are the x-coordinates and the temperatures are the y-coordinates; this is because temperature is dependent upon time.
After we enter this, we run a regression on the calculator. We will run the quadratic regression; the equation is of the form
y = ax²+bx+c.
The values we are given on a Casio fx-9860 gii are:
a = -0.507
b = 14.908
c = -36.136
This is closest to choice B.
Answer:
Step-by-step explanation:
<span>5(x + 1) = 4(x + 8)
Use distributive property
5x+5=4x+32
Subtract 4x from both sides
x+5=32
Subtract 5 from both sides
Final Answer: x=27</span>
Answer:
60°
Step-by-step explanation:
angle A +angle B +angle C = 180
30° +B+90°= 180
120°+B=180°
B=180°-120°
B=60°