HELPPP NEED DONE.........
1 answer:
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- If x = 5 is a zero of the given polynomial, then,
- (x - 5) is a factor of the polynomial. [Since, x = 5 or, x - 5 = 0]
- Now, divide the polynomial with (x - 5) using long division method. (See the picture)
- We get (x^2 - x - 6) as the quotient.
- Now, factorise the above polynomial:
- (x^2 - x - 6)
- = (x^2 - 3x + 2x - 6)
- = x(x - 3) + 2(x - 3)
- = (x - 3)(x + 2)
- Therefore, x^3 − 6x^2 − x + 30 = (x − 5)(x − 3)(x + 2)
<u>Answer</u><u>:</u>
<u>B.</u><u>(x − 5)(x − 3)(x + 2)</u>
Hope you could get an idea from here.
Doubt clarification - use comment section.
Answer:
Part A: When the temperature increases, the number of ice cream cones sold increases. It shows close to a linear relationship.
Part B: y = 2x+5
Step-by-step explanation:
Part A: When the temperature increases, the number of ice cream cones sold increases. It shows close to a linear relationship.
Part B: To write the line of best fit, use the points that run a line through the data.
You can connect (0,5) and (25,55) and have a line through the middle of the data.
This line intercepts the y-axis at (0,5) so b=5.
It's slope is
The slope is 2 and b=5 so y = 2x + 5.