No, a cubic equation can not have three complex roots. This is because it turns twice and one end goes to positive infinity and one end goes to negative infinity. Thus, one of these MUST cross the x-axis at some point, meaning y = 0 and a real root exists.
Yes, a cubic equation can have three real roots if it cuts the x-axis three times.
Answer:
part a 1.10
part b i dont understand maybe try to ask ur teach rq? but i thinks its 1.00?
Step-by-step explanation:
Answer:
8a+10b
Step-by-step explanation:
it is due to the addtion between 2 numbers
answer
1385
explanation
to find the total, subtract the amount they earned by the amount they spend
total = earned - spent
earned
each week, Mr. Smith earns 1900 and and his earns 1150, so add these values together to find the total amount they earn
earned = 1900 + 1150
earned = 3050
spent
they spend money on food, gas, mortgage, and savings, so add these values together to find the total amount they spend
spent = food + gas + mortgage + savings
spent = 300 + 90 + 875 + 400
spent = 1665
total
now that we know how much they earn and spend, we can find the total
total = earned - spent
total = 3050 - 1665
total = 1385
every week they have 1385 left over
Unit price = price for one donut
if 12 donuts cost $8.50, then one donut would be:
$8.50/12 = 0.7083, or about $0.71
