Answer:
b. More than half of all people prefer texting.
Step-by-step explanation:
According to the survey 56% of the respondents prefer texting over making call. This means the value of sample proportion p is:
Sample proportion = p = 56% = 0.56
The margin of error with 95% confidence interval is 3 percent points i.e.
Margin of error = M.E = 0.03
The true value of the population proportion can be expressed as the following confidence interval:
From p - M.E to p + M.E
Lower Limit = p - M.E = 0.56 - 0.03 = 0.53 = 53%
Upper Limit = p + M.E = 0.56 + 0.03 = 0.59 = 59%
From here we can see that the lower and upper limit of confidence interval are above 50%. Based on these calculations the following claim can be supported:
b. More than half of all people prefer texting.
17 multiplied by 48 is 816
To figure this out, we would need to find the volume of the present.
The formula for finding the volume of an object is LxWxH, so we would multiply 5x8x1.5 to get a volume of 60 inches.
So we would need at least 60 inches or wrapping paper.
I hope this helped! :-)
1/4-11/4. Simplify by combining like terms
Answer:
(f + g)(x) = 5x + 3
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Terms/Coefficients
- Functions
- Function Notation
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
f(x) = 2x - 6
g(x) = 3x + 9
(f + g)(x) is f(x) + g(x)
<u>Step 2: Find</u>
- Substitute in function values: (f + g)(x) = 2x - 6 + 3x + 9
- Combine like terms: (f + g)(x) = 5x + 3
