I think your answer might be the first one
Answer:
5789 digits
Step-by-step explanation:
Given that the number of pages ares: 1,724
As we know that:
- (from 1 - 9) there are 9 one-digit numbers
- (from 10- 99) there are 90 two-digit numbers
- (from 100 - 999) there are 900 three-digit numbers
- (from 1,000 - 1,724) there are 725 four-digit numbers
So the total are:
Answer:
Step-by-step explanation:
The given data is
42 40 39 31 22 18 15 12 11.7 10.5
Range = 42 - 10.5 = 31.5
Mean = (42 + 40 + 39 + 31 + 22 + 18 + 15 + 12 + 11.7 + 10.5)/10 = 24.12
n = 10
Variance = Summation(x - mean)²/n
Summation(x - mean)² = (42 - 24.12)^2 + (40 - 24.12)^2 + (39 - 24.12)^2 + (31 - 24.12)^2 + (22 - 24.12)^2 + (18 - 24.12)^2 + (15 - 24.12)^2 + (12 - 24.12)^2 + (11.7 - 24.12)^2 + (10.5 - 24.12)^2 = 1452.396
Variance = 1452.396/10 = 145.2396
Standard deviation = √(summation(x - mean)²/n
Standard deviation = √(145.2396
Standard deviation = 12.1
The standard deviation of the sample is not a good estimate of the variation of the salaries of the TV personalities in general because
B. No, because the sample is not representative of the whole population.
Answer:
Cost of 1 ft²: $7
Cost of 1 ft² of geranium: $6
Step-by-step explanation:
Let x be the cost of a ft² of grass
Let y be the cost of a ft² of geranium
13x + 9y = 145
4x + 12y = 100
x + 3y = 25
x = 25 - 3y
13(25 - 3y) + 9y = 145
325 - 39y + 9y = 145
180 = 30y
y = 6
x = 25 - 3(6)
x = 7
N 59° E = 90-59 = 31°
Distance N = 150 sin (31°) = 77.25
Distance E = 150 cos(31°) = 128.58
