Answer:

Step-by-step explanation:
Consider polynomial
If x=-2 is its zero, then you can divide the polynomial
by
and get

If x=-1, then the polynomial
can be rewritten as

The quadratic polynomial has roots

Then the polynomial
has zeros 
2, 5, 8, 11, 14 is an arithmetic sequence
Answer:
Step-by-step explanation:
<u>Given:</u>
<u>Comparing the total cost, work out the value of x:</u>
- 2x + x + 0.2 = 3.80
- 3x = 3.60
- x = 1.20
Answer:
the answer is
hours
Step-by-step explanation:
so first we have to turn the fractions into mixed fractions, in order to do that we multiply the whole number by the denominator and add the numerator, our answer becomes the new numerator over the same denominator.

3 x 4 + 3
12 + 3
15

we do the same thing again.

1 x 3 + 1
3 + 1
4

then after we get our mixed fractions we subtract them from each other. Since the denominators are not the same we multiply to get the same denominators.



we subtract the numerators and keep the denominators.

then we simplify.
