Answer:
c = 11
Step-by-step explanation:
96 - 8c = 20 - 12 , that is
96 - 8c = 8 ( subtract 96 from both sides )
- 8c = - 88 ( divide both sides by - 8 )
c = 11
Answer:
Y = [-6 6 6 -6]
Step-by-step explanation:
From the given matrices
If X - 2Y = Z
b - 2c = a ... 1
a -2d = c ...2
4+2a = 16.... 3
a + 2b = b .... 4
From3 ;
2a = 16-4
2a = 12
a = 6
From 4;
a + 2b - b = 0
a+b = 0
a = -b
6 = -b
b = -6
From1;
b - 2c = a
-6 - 2c = 6
-2c = 12
c = -6
also
a - 2d = c
6-2d = -6
-2d = -6-6
-2d = -12
d = 6
Hence the matrices Y = [-6 6 6 -6]
Answer:
a. The relevant population is all the citizens of the country
b. The variable of interest is about whether the president is doing a good job or bad job. It is qualitative
c. The sample data is the 7,500 citizens randomly selected by random-digit telephone dialing
d. The inference of interest to the pollster is whether the citizens think the president is doing good or bad
e. The method of data collection is survey.
Step-by-step explanation:
Answer:
12 ft
Step-by-step explanation:
Area = Length * Width
168 = 14 * W
168/14 = W
W = 12 ft
Answer:
B. 17.06 units
Step-by-step explanation:
its says 8.53 between the distance and since AB are congruent to CD. then the circle should be the same distance therefor 8.53 + 8.53 = 17.06 units.
