quadratic formula:
x = <u>-b ± √(b² - 4ac)</u>
2a
7x² - x = 7
subtract 7 from both sides:
7x² - x - 7 = 0
plug values into the quadratic formula:
x = <u>-(-1) ± √((-1)²- 4(7)(-7))</u>
2(7)
simplify:
x = <u>1 ± √(197)</u>
14
Answer: The correct answer is the second choice: "When any two polynomials are added, the result is always a polynomial."
When a set of numbers is "closed" under an operation, it means that the resulting output answer is the same type as the input.
For example, if you add 2x + 9 and 3x + 12, you get 5x + 21.
You started with 2 polynomials and you ended with a polynomial.
C. because I just asked my math teacher
Answer:
x = 58
Step-by-step explanation:
The angle formed by two secants
= 1/2(difference of intercepted arcs)
51 = 1/2 (160 - x)
Multiply each side by 2
51*2 = 2*1/2 (160-x)
102 = 160-x
Subtract 160 from each side
102-160 = 160-160-x
-58 = -x
Multiply each side by -1
58 =x
Answer:
a graph with points plotted to show a possible relationship between two sets of data. ... A correlation where as one variable increases, the other also increases, or as one decreases so does the ... a line that best passes through or near graphed data; used to describe data and predict where new data will appear on the graph.
