Answer:
Null Hypothesis, : p = 0.54
Alternate Hypothesis, : p 0.54
Step-by-step explanation:
We are given that the company's promotional literature states that 78% of the chips fail in the first 1000 hours of their use. Also, a sample of 1500 computer chips revealed that 77% of the chips fail in the first 1000 hours of their use.
And the quality control manager wants to test the claim that the actual percentage that fail is different from the stated percentage, i.e;
Null Hypothesis, : p = 0.78 {means that the actual percentage that fail is same as the stated percentage}
Alternate Hypothesis, : p 0.78 {means that the actual percentage that fail is different from the stated percentage}
Y = 4x/3+19/3 move all terms that dont contain to y to the right then solve
Answer:
116%
Step-by-step explanation:
Cost Price (C. P.) = $500
Selling Price (S. P.) = $1080
Profit = SP - CP = $1080 - $500 = $580
Profit percent
Answer:
Explanation:
The polynomial subtraction is:
The ruls to add or subtract polynomials is to add or subtract like terms.
LIke terms are the terms with the same variables each raised to the same power. So, the like terrms for those two polynomilas are:
- -6.7x² and -14.9x²,
- +2.3xy and -3.5xy,
- 5.2 and 7.1
The next step is to use the distributive property: you must distribute the subraction symbol before the parenthesis through every term inside the parenthesis. For this, remember the rule of the signs:
- When you multiply the negative sign before the parenthesis, the sign of each term inside the parenthesis will be changed (negative times positive = negative, negative times negative = positive)
So, the result is:
And that is ordered in descending powers of x (x² has order 2, xy has order 1 on each variable, and the constant terms have order 0).
Answer:
18:5???
Step-by-step explanation:
1 1/2hrs = 90 mins
90 / 5 = 18
25 / 5 = 5
I'd say: 18 : 5??