Answer:
Width = 110 ft
Step-by-step explanation:
width = x
length = x + 300
To find the width, we use the formula for perimeter, substituting 1040 for perimeter, x + 300 for length, and x for width:
![P=2(l+w)\\\\1040=2[(x+300)+x]](https://tex.z-dn.net/?f=P%3D2%28l%2Bw%29%5C%5C%5C%5C1040%3D2%5B%28x%2B300%29%2Bx%5D)
Combine like terms inside the brackets:
Distribute the 2 within the parentheses:
Subtract 600 from both sides:
Divide both sides by 4:
Therefore, the width is 110 ft and the length is 410 ft. To verify, we can check that the perimeter equals 1,040 ft.
Yes Lisa is correct 43 is a 2 digit number 4 is one digit and 3 is a digit so it makes two digits 43 is a prime number because 43 has no positive divisors rather than 1 and itself.
SO answer is YES
Answer:
b. 0.055
Step-by-step explanation:
The point estimate of the proportion of people who wear hearing aids is
The number of people in the sample who wear hearing aids divided by the total number of people in the sample.
In this problem, we have that:
Sample of 855.
47 people in the sample had hearing aids.
47/855 = 0.0549
Rounding up
0.055
So the correct answer is:
b. 0.055
Calculate the interest in a year
Multiply the annual percentage of interest by the investment to find the interest.
interest in a year = 2% × 1,000
interest in a year = 0.02 × 1,000
interest in a year = 20
The annual interest is $20
Calculate the interest after 10 years
Multiply the annual interest by 10
interest 10 years = 20 × 10
interest 10 years = 200
The sum of interest after 10 years is $200
Find total investment
investment = first investment + interest in 10 years
investment = 1,000 + 200
investment = 1,200
The investment will be worth $1,200 in 10 years
Answer:
D. 2 ≤ x ≤ 10
Step-by-step explanation:
The domain is the horizontal extent of the graph. This graph extends from x=2 to x=10. Its domain is ...
2 ≤ x ≤ 10
