Answer:
A
Step-by-step explanation:
observe
x² + 12x + y² + 10y = –45
add 36 + 25 on both side
x² + 12x + 36 + y² + 10y + 25 = –45 + 36 + 25 = 16
(x + 6)² + (y + 5)² = 16
Answer:
B. 30°
Step-by-step explanation:
Answer:
proportional graph is a straight line that always goes through the origin. A non-proportional graph is a straight line that does not go through the origin.
Step-by-step explanation:
Your main choices here are (1) a calculator with statistical functions and (2) a table of z-scores.
(a) On my TI-83 Plus calculator I typed in normcdf(-1000, 0.92). The calculator returned the value 0.821. This is approx. 8/10 of the total area under the std normal curve.
(b) I typed in normcdf(-1000, -1.26) and got 0.104
(c) I typed in normcdf(-1000, -0.64) and got 0.261
(d) I typed in normcdf(-1000, -1.09) and got 0.138
The area is 28 in !!!!!!!!!!!
