Answer:
It's the third one. Both the above statements are true.
Step-by-step explanation: When an equation has a squared term in it
such as x² - 2x - 63 = 0, it's called a polynomial equation.
The rule for solving a polynomial equation is
to first set it equal to 0, them factor.
Since this equation is already set equal to 0, we can factor the left side.
To factor x² - 2x - 63, look for factors of -63 that add to -2.
In this case, these factors are -9 and +7.
So we have (x - 9)(x + 7) = 0.
When two terms are multiplying together to equal 0,
either one term or the other must equal 0.
So x - 9 = 0 or x + 7 = 0.
Solving for x in each equation, we get x = 9 or x = -7.
So this equation has two solutions and we write out answer
in set notation which looks like this {9, -7}.
8 + 6.50 = 14.50
22.00
- 14.50
-----------
7.50
answer : liu's meal was $7.50
Step-by-step explanation:
everything can be found in the picture above
Answer: The contribution to geometry is attributed to the work of René Descartes B. the use of functions to describe lines and curves.
Who is Rene Descartes?
Rene Descartes is a famous person known for his great contribution to Mathematics and Philosophy.
He is also called the "Father of Modern Philosophy".
One of the major ways in which the French philosopher René Descartes contributed to geometry was through his mathematical skills and progress, which allowed scientists to better quantify and analyze data.
The contribution to geometry is attributed to the work of René Descartes B. the use of functions to describe lines and curves.
Step-by-step explanation:
