Answer:
2x
Step-by-step explanation:
x ?
---- = ------
8 16
To get from 8 to 16, we multiply by 2
Multiply x/8 by 2 on the top and bottom
x/8 * 2/2 = 2x/16
? = 2x
Answer:
Step-by-step explanation:
Given that A cereal company claims that the mean weight of the cereal in its packets is 14 oz
Test the claim at the 0.01 significance level.H0: μ = 14 oz. H1: μ 14 oz.
Parameter Value
Mean 14.050
SD 0.346
SEM 0.122
N 8
90% CI 13.818 to 14.282
95% CI 13.760 to 14.340
99% CI 13.621 to 14.479
Minimum 13.6
Median 14.05
Maximum 14.6
Test statistic: t = 0.408
Critical values: t = ±3.499.
Since test statistic falls within the critical values, we accept the null hypothesis at 1% significance.
Fail to reject H0. There is not sufficient evidence to warrant rejection of the claim that the mean weight is 14 ounces.
Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2, Use the given sample sizes and numbers of successes to find the pooled estimate p. n1 = 100 n2 = 100 x1 = 33 x2 = 36
proportion difference = 0.03
Step-by-step explanation:
x²-11x+32=4
x²-11x+28=0
(x-4)(x-7)=0
x=4 or x=7
_______
x²+8x-5=4
x²+8x-9=0
(x+9)(x-1)=0
x=-9 or x=1
_______
x²+x+4=5x+1
x²-4x+3=0
(x-1)(x-3)=0
x=1 or x=3
________
x²+x-24=-8x-2
x²+9x-22=0
(x+11)(x-2)=0
x=-11 or x=2
