Answer:
Option C is correct.
f = 2
Step-by-step explanation:
The mean is the sum of variables divided by the number of variables
Mean = (Σfx)/(Σf)
xi | 15 | 17 | 20 | 30 | 10 + f
fi | 4 | 4 | 6 | 5 | 6
Σfx = (15×4) + (17×4) + (20×6) + (30×5) + [(10+f)×6] = 60 + 68 + 120 + 150 + 60 + 6f = (458 + 6f)
Σf = 4 + 4 + 6 + 5 + 6 = 25
Mean = 18.8
18.8 = (458+6f) ÷ 25
458 + 6f = 25 × 18.8 = 470
6f = 470 - 458 = 12
f = (12/6) = 2
Hope this Helps!!!
Answer:
$1,352
Step-by-step explanation:
The computation of the initial amount is shown below:
As we know that
Ending value = Initial investment × e^{rate, time period}
$1,900 = Initial investment × e^{3.4%, 10}
$1,900 = Initial investment × e^0.34
$1,900 = Initial investment × 1.404947591
So, the initial investment is
= $1,900 ÷ 1.404947591
= $1,352
Answer:
234.98
Step-by-step explanation:
in class notes
Systems of linear equations can only have 0, 1, or an infinite number of solutions. The two lines can't intersect twice, so the correct answer is that the system has one solution.
A
7*(1)(14) = 98 Not the right answer. I have done what is inside the brackets first. (5 - 4) = 1; (5 + 9)= 14; 7 * 1 * 14 = 98 which is not 6
B
7 * [1 * 5] + 9 = 44; 7 * 5 + 9 = 35 + 9 = 44 Also not 6
C
7*[5 - 20 + 9] = - 42; Not 6 as well 7*[14-20] = 7*-6 = - 42
D
7*5 - [20 + 9] = 35 - 29 = 6
Answer D
