<span>The limitation of
algebra that leads development of calculus is that it can make a complex number
of variables present it as a single variable and then apply the necessary
formula needed to find the answer. After manipulation, the presented single
variable can be changed back to a complex variable by substitution.</span>
Use the app Socratic, it gives u a step by sort explaination
Answer:
x = -10/3
Step-by-step explanation:
2/3x + 2/3 + 1/5x = 2/3x
Subtract 2/3x from each side
2/3x-2/3x + 2/3 + 1/5x = 2/3x-2/3x
2/3 + 1/5x = 0
Subtract 2/3 from each side
2/3 -2/3+ 1/5x =0- 2/3
1/5x = -2/3
Multiply each side by 5
5*1/5x = 5*-2/3
x = -10/3
Answer:
B
Step-by-step explanation:
Answer:
Kindly check explanation
Step-by-step explanation:
Given that :
The hypothesis :
H0 : σ²= 47.1
H1 : σ² > 47.1
α = 5% = 0.05
Population variance, σ² = 47.1
Sample variance, s² = 83.2
Sample size, n = 15
The test statistic = (n-1)*s²/σ²
Test statistic, T = [(15 - 1) * 83.2] ÷ 47.1
Test statistic = T = [(14 * 83.2)] * 47.1
Test statistic = 1164.8 / 47.1
Test statistic = 24.73
The degree of freedom, df = n - 1 ; 10 = 9
Critical value (0.05, 9) = 16.92 (Chisquare distribution table)
Reject H0 ; If Test statistic > Critical value
Since ; 24.73 > 16.92 ; Reject H0 and conclude that variance is greater.