Answer:
Total length of string required in yards yards
Step-by-step explanation:
The length of the string attached with each balloon is equal to feet
In the party total number of balloon used is equal to balloons
The total length of the string required
Length of string used in one balloon * total number of balloons
feet
1 feet is equal to 13 yards
Total length of string required in yards yards
Answer:
218.7 lb.
Step-by-step explanation:
We have been given that the weight of male american between the ages 18 to 25 is normally distributed, with mean of 162.7 lb and a standard deviation of 28 lb.
One definition of obesity states that a person is obese if the z-score of his or her weight is greater than 2.
We will use z-score formula to solve our given problem.
, where,
,
,
,
.
Upon substituting our given values in z-score formula we will get,
Now let us solve for x.
Upon multiplying both sides of our equation by 28 we will get,
Let us add 162.7 to both sides of our equation.
Therefore, the obesity threshold weight for a young adult American male is 218.7 pounds.
Since a negative times a positive makes a negative you can change your equation to 7 - 5n=42. You can now subtract 7 from both sides to get -5n = 35. Next get divide -5 on both sides giving you n = -7.
Answer:
A
Step-by-step explanation:
a^3 is a * a * a, b^2 is b * b, so we can write that in the numerator.
a^2 is a * a. So we can change that in the denominator.
The denominator cancels out with part of the numerator, and leaves us with just a*b, which is ab, which is answer A.