Answer:
c = 14.9
Step-by-step explanation:
use the pythagorean thereom:
a² + b² = c²
a² = 11 × 11 = 121
b² = 10 × 10 = 100
c² = 121 + 100 = 221
now find the square root of 221:
√221 = 14.866...
round to the nearest tenth:
the 6 next to the 8 means round up.
so the hypotenuse is 14.9
Answer:
A
Step-by-step explanation:
-1.6
Answer:
Step-by-step explanation:
on a number line
open circle on the -6 and draw a line to the left to ten with the arrow on the end
make a closed circle on positive 4 and draw a line to the right to 10 with arrow at the end
Answer:
Step-by-step explanation:
2/5 + sqrt(88)
2/5 + sqrt(4)*sqrt(22)
2/5 + 2 sqrt(22)
That's as much as this can be reduced.
Answer:
H0: p(1980) = p(2010) ; H1 : P(1980) > P(2010)
0.02
Step-by-step explanation:
Given that:
Sample size in both 1980 and 2010 = 1000 samples :
Proportion in favor :
P(1980) = 0.66
P(2010) = 0.64
To test the hypothesis :
Null hypothesis :
Proportion in favor are the same in both years
Null hypothesis = H0 = p(1980) = p(2010)
Alternative hypothesis :
Proportion in favor in 1980 is greater than that in 2010
Alternative hypothesis = H1 : P(1980) > P(2010)
The sample statistic :
P(1980) - p(2010)
0.66 - 0.64
= 0.02
