Answer:
see explanation
Step-by-step explanation:
Given
6x² + x - 1 = 0 ← in standard form
To factorise the quadratic
Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 6 × - 1 = - 6 and sum = + 1
The factors are + 3 and - 2
Use these factors to split the x- term
6x² + 3x - 2x - 1 = 0 ( factor the first/second and third/fourth terms )
3x(2x + 1) - 1(2x + 1) = 0 ← factor out (2x + 1) from each term
(2x + 1)(3x - 1) = 0
Equate each factor to zero and solve for x
2x + 1 = 0 ⇒ 2x = - 1 ⇒ x = -
3x - 1 = 0 ⇒ 3x = 1 ⇒ x =
Answer:
option C is the correct answer.
We subtract the divisor as many times as you can from the dividend. The number of times you subtract is the quotient
Answer:
C.
Step-by-step explanation:
We are given that
In I year, number of participants=88
In V year, number of participants=115
We have to find the equation of the trend line that can be generated by using the data from years 1 and 5.
Rate of change of participants =
Rate of change of participants,m=6.75
Point-slope form:
Where m=Rate of change of participants per year
By using the formula
Substitute the values then we get
Hence, option C is true.