Maybe c or A not completely sure try looking for the one you think it is and try reading it again
Answer:
<h2>M(-a, b)</h2>
Step-by-step explanation:
Use the formula of a midpoint:
We have the points P(-2a, 0) and Q(0, 2b). Substitute:
Answer:
Step-by-step explanation:
Given is the system of equations:
a) Coefficient matrix is
7 3
-6 -3
b) |A|= -21+18=-3
c) Inverse =
1 --1
2 -7/3
c) Solution = product of inverse matrix * (12 4) Transpose
X1 = 16 and X2 =-100/3
There is a 13.3% chance that a sample of 200 U.S. students in grades 9 through 12 who attend public and private school will have 11% or fewer obese students if 13.7% of the population is obese this year. (Option D)
<u>Explanation:</u>
From the given information it is observed that the 2013 national Youth Risk Behavioural Survey reported that 13.7 percent of US students in grades 9 through the grade 12 who attended the public school were obese.
Consider the random sample of 200 US students and find that 11 percent are obesed. The Null and alternative hypothesis are
Null hypothesis, = 0.137, Alternative hypothesis, = p less than 0.137
Thus, the value of p is 0.133
2arctan(2/5) = 44°
180° -44° = 136°
The angles are 44°, 136°.
