Answer:
Area = 37.5
Perimeter = 36
Step-by-step explanation:
Have a good day! :)
The solution to the equation are 5 or -1 after applying the quadratic formula.
<h3>What is a quadratic equation?</h3>
Any equation of the form
where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.
It is given that:
x² - 4x² - 5 = 0
The above equation is a quadratic equation:
Using the quadratic formula:

Plug the values in the formula:

After solving:
x = 5 or -1
Thus, the solution to the equation is 5 or -1 after applying the quadratic formula.
Learn more about quadratic equations here:
brainly.com/question/17177510
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Height = area / base = 45 / 5 = 9 cm Answer
Answer:
9
Step-by-step explanation:
3n(n representa number of time)+2n =50
50÷2=25( shoveling side walk)
25÷3= 8.3333333333(mowling)
25+8.3333333333=33.3333333333
last year:
2n+ 3n=45
45÷5=9 ( divide 5 because you add 2+3)
shoveling once=9