Answer:
756.24
Step-by-step explanation:
6302 x 0.120 = 756.24
The area of a surface is the number of square units present in the surface. For a rectangle, it is calculated from the product of the length and the width. To determine the length and width of the lot given above, we first assume that it is in a rectangular shape which is defined by its length and its width. We are given the following:
Area = 4200 square feet
Length = 4x - 20 feet
Width = x feet
From the definition of the area of a rectangle,
Area = length x width
4200 = (4x -20) (x)
4200 = 4x^2 - 20x
4x^2 - 20x - 4200 = 0
4(x^2 - 5x - 1050) = 0
x^2 - 5x -1050 = 0
Factoring the equation would lead to:
(x - 35) (x +30) = 0
x -35 = 0 ; x = 35
x + 30 = 0 ; x = -30
The width should not be a negative value so the width would be equal to 35 feet. So, the length would be
Length = 4(35) - 20 = 120 feet
Answer:
The correct answer is last option
2n + m√n - nm
Step-by-step explanation:
It is given an expression,
4√n² + √m²n - √4n² - √mn²
<u>To simplify the expression</u>
4√n² + √m²n - √4n² - √mn² = 4n + m√n -2n -nm
= 4n - 2n + m√n - n√m
= 2n + m√n - n√m
Therefore the correct answer is last option
The student would have to score 100% on their next test to brung their average up to 90. Here is why;
90+84+86=260
(260+?)/4=90
(260+100)/4=90
360/4=90
This is done to get the mean (or average) of a group of numbers by adding all the numbers and dividing by the amount of numbers you added together. Here it is divided by 4 because of the three tests he has taken and the test he will take.
$3/pound. $12 divided by 4 pounds is $3 per pound.
