The number of solutions of a quadratic equation
ax^2+bx+c=0
Depends on its discriminant
/Delta=b^2-4ac
If /Delta>0 there are two distinct solutions
If /Delta=0 there are two coincident solutions
If /Delta<0 there are no solutions.
We know that there are two real solutions (I assume you mean distinct solutions), so we know that the discriminant is positive:
The number of solutions of a quadratic equation
Depends on its discriminant
If there are two distinct solutions
If there are two coincident solutions
If there are no solutions.
We know that there are two real solutions (I assume you mean distinct solutions), so we know that the discriminant is positive:
b^2-4ac=9+28t>0\iff t>-\dfrac[9][28]
Answer:
To find the "nth" term of an arithmetic sequence, start with the first term, a(1). Add to that the product of "n-1" and "d" (the difference between any two consecutive terms). For example, take the arithmetic sequence 3, 9, 15, 21, 27.... a(1) = 3. d = 6 (because the difference between consecutive terms is always 6.
Step-by-step explanation:
Answer: the answers are 2,3,and 5
Step-by-step explanation:
Option C: 
Option D: 
Option F: 
Solution:
Given expression: 
To find which expression is equivalent to the given expression.
Let us solve this using exponent rule: 
Option A: 
It is not equivalent expression.
Option B: 
It is not equivalent expression.
Option C:
It is equivalent expression for the given expression.
Option D:
It is equivalent expression for the given expression.
Option E: 
It is not equivalent expression.
Option F:
It is equivalent expression for the given expression.
Hence 
are the equivalent expressions.
Option C, Option D and Option F are correct answers.
Answer:
x<=(less or equal to) 1/20
Step-by-step explanation:
