Answer is B cause you have to minus the 20 then then swap the signs
OB. The digits in the millions period are 41, the digits in the thousands period are 000, and the digits in the ones period are 138.
The digits of a number can be classified into into 3 groups and each such group is called a period.
Here, we are give a number 41,000,138.
In this number, the million period consists of
ten millions - 4
and millions - 1
Hence the digits in the million periods are 41
The thousand period consists of all zeroes, hence the digits in thousand periods are 000.
The ones period contains-
hundreds - 1
tens - 3
and ones - 8
Thus, the digits in the ones period are 138
Hence, option B is the correct answer.
Learn more about place value here-
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Of means multiply
is means equals
1/2 • x = -.25
Rewritten
.5•x=-.25
Inverse operations to isolate the variable.
x = -.25/.5
x = -.5
Your answer is J. because descending means it’s getting smaller
Answer:
Step-by-step explanation:
The table can be computed as:
Advertising Expenses ($ million) Number of companies
25 up to 35 4
35 up to 45 19
45 up to 55 27
55 up to 65 16
65 up to 75 9
TOTAL 75
Let's find the probabilities first:
For 35 up to 45
For 45 up to 55
For 55 up to 65
For 65 up to 75
Chi-Square Table can be computed as follows:
Expense No of Probabilities(P) Expe
compa cted E (n*p)
nies (O)
25-35 4 0.0612 75*0.0612 = 4.59 0.3481 0.0758
35-45 19 0.2218 75*0.2218 = 16.635 5.5932 0.3362
45-55 27 0.3568 75*0.3568 = 26.76 0.0576 0.021
55-65 16 0.2552 75*0.2552 = 19.14 9.8596 0.5151
65-75 9 0.0839 75*0.0839 = 6.2925 7.331 1.1650
Using the Chi-square formula:
Null hypothesis:
Alternative hypothesis:
Assume that:
degree of freedom:
= n-1
= 5 -1
= 4
Critical value from
Decision rule: To reject test statistics is greater than tabulated.
Conclusion: Since is less than critical value 11.667. Then we fail to reject