Answer:
B 15
Step-by-step explanation:
10 dollar + 2 hours of work 15 x 2
-b
- (-8b+5)
_________
-b
+ (8b-5)
__________
Solution: 7b-5
Check: 7b-5
+ -8b+5
__________
-b
Answer:
23%<x<43%
Step-by-step explanation:
The formula for calculating confidence interval is expressed;
Confidence Interval = p ± z√p(1-p)/n
n is the sample size
z is the z score at 98% confidence interval
n is the sample size = 120
z = 2.33
If in a randomly chosen handful of 120 beans 40 were black, then;
p = 40/120
p = 4/12
p = 0.33
CI = 0.33± 2.33√0.33(1-0.33)/120
CI = 0.33± [2.33√0.33(0.67)/120]
CI = 0.33± [2.33√0.2211/120]
CI = 0.33± [2.33(0.04292)]
CI = 0.33±0.100014
CI = (0.33-0.100014, 0.33+0.100014)
CI = (0.229, 0.430014)
CI = (22.9, 43.0014)
Hence 98% confidence interval for the proportion of black beans in the jar is 23%<x<43%.
Answer:
The word fractals describe geometrical shapes that are self-similar with continuous repetition.
Step-by-step explanation:
Fractal is a word invented by Mandelbrot to illustrate some geometric shape with self similar repeating dimensions. It can be used to qualify resizing or splitting of a given image into parts (e.g compressing) which consist of smaller copies of itself.
They are infinitely complex with a non-integer dimensions. Examples are the dragon curve and space-filling curve.
Mandelbrot invented the word fractals to describe shapes found in nature that are similar to itself and recursive.
Answer:
172-602
Step-by-step explanation:
