The answer is permutation !
Answer:
10v² - 27v - 17vx - 20x²
Step-by-step explanation:
Given
(5v + 4x)(2v - 5x - 3)
Each term in the second parenthesis is multiplied by each term in the first parenthesis, that is
5v(2v - 5x - 3) + 4x(2v - 5x - 3) ← distribute both parenthesis
= 10v² - 25vx - 15v + 8vx - 20x² - 12x ← collect like terms
= 10v² - 15v - 17vx - 12x - 20x²
How many cakes do you have, just get a calculator and multiply the number of cakes by 2.25 to get the total amount of money.
Answer:
Step-by-step explanation:
From the given information:
The null hypothesis is:
The alternative hypothesis is:
The sample size n = 35
Sample mean = 7.91
variance = 0.03
Standard deviation = 
The t-test statistics is computed as:
t = - 3.0741
Degree of freedom:
df = n - 1
df = 35 - 1
df = 34
Level of significance = 1 - C.I
= 1 - 0.99
= 0.01
The t_{critical} value for the two-tailed test at 0.01 is within the rejection region:
Decision rule: To reject 
if 
As 
fails the rejection region, we reject
Conclusion: There is sufficient evidence to believe that the machine will not dispense 8 ounces & and it must be stopped for repairs.
A is true because the outcome of "1" happens three times (see the three tally marks) out of 8. So we have 3/8 as the probability for the outcome of "1".
B is false because the outcomes greater than "2" happen a total of 3 times out of 8. So it should be P(X > 2) = 3/8 and NOT P(X > 2) = 1/4
C is true as this is equivalent to what part A is saying. A is true so C is true. Being less than 2 is exactly identical as having an outcome of 1.
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In summary:
A = true
B = false
C = true
