Answer:
a = 3
Step-by-step explanation:
Factor both expressions
x² - x - 6
Consider the factors of the constant term (- 6) which sum to give the coefficient of the x- term (- 1)
The factors are - 3 and + 2 , since
- 3 × 2 = - 6 and - 3 + 2 = - 1 , thus
x² - x - 6 = (x - 3)(x + 2)
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x² + 3x - 18
consider factors of constant term (- 18) which sum to give the coefficient of the x- term (+ 3)
The factors are + 6 and - 3 , since
6 × - 3 = - 18 and 6 - 3 = + 3 , thus
x² + 3x - 18 = (x + 6)(x - 3)
Both expressions have a common factor of (x - 3)
Compare with (x - a ), then a = 3
He price of the cone before tax was 2.26 dollars. hope this helps!
in a test marked out of 40,the marks of 10 students were 32,20,7,30,25,22,18,35,10,11.calculate the mean mark for the test
Kruka [31]
Answer:
23.5
Step-by-step explanation:
25 + 22 = 47, 47/2 = 23.5
15 minutes since every 15 minutes the hand passes 1/4 of its cycle, meaning that the smaller hand would be at a 90 degree angle from the larger hand
