(5p+12) (5p-12) i hope this helps
Answer: -35+24p
Step by step in picture below
Sum is addition, less than is subtraction, equals is is, division is of and multiplication is per
Answer:
95% provides more information
Step-by-step explanation:
The confidence interval is obtained by using the relation :
Xbar ± Zcritical * σ/√n
(Xbar - (Zcritical * σ/√n)) = 5.22 - - - (1)
(Xbar + (Zcritical * σ/√n)) = 5.98 - - (2)
Adding (1) and (2)
2xbar = 5.22 + 5.98
2xbar = 11.2
xbar = 11.2 / 2 = 5.6
Margin of Error :
Xbar - lower C.I = Zcritical * σ/√n
Zcritical at 90% = 1.645
5.6 - 5.22 = 1.645 * (σ/√n)
0.38 = 1.645 * (σ/√n)
(σ/√n) = 0.38 / 1.645 = 0.231
Therefore, using the se parameters to construct at 95%
Zcritical at 95% = 1.96
Margin of Error = Zcritical * σ/√n
Margin of Error = 1.96 * 0.231 = 0.45276
C.I = xbar ± margin of error
C. I = 5.6 ± 0.45276
C.I = (5.6 - 0.45276) ; (5.6 + 0.45276)
C. I = (5.147 ; 6.053)
Hence, 95% confidence interval provides more information as it is wider.
Answer:
(x + 2)(x + 2)(2 - x), or (x + 2)^2(2-x)
Step-by-step explanation:
Find the LCD of the following fractions:
7 5
------------------ , ---------------
x^2 + 4x + 4 4 - x^2
To do this, factor both denominators, obtaining:
7 5
------------------ , -----------------
(x + 2)^2 (2-x)(2+x)
These two denominators have one factor in common: x + 2.
The LCD is the product of this common factor and each of the non-common factors:
(x + 2)(x + 2)(2 - x), or (x + 2)^2(2-x)
