Answer:
y = (x - 2)² + 9
Step-by-step explanation:
To obtain the equation in vertex form use the method of completing the square.
Add/ subtract ( half the coefficient of the x- term)² to x² - 4x
y = x² + 2(- 2)x + 4 - 4 + 13
= (x - 2)² + 9 ← in vertex form
<h2>
Percentage profit on the cost of the coat is 50 %</h2>
Step-by-step explanation:
Cost of hat = £10
Michael made 200% profit on the hat.
He sold both items for a total of £90.
Selling price of coat = 90 - 30 = £60
He made 80% profit on the total cost. Let C be the cost for coat and hat.
That is
Cost for coat = 50 - 10 = £40
Percentage profit on the cost of the coat is 50 %
The answer which would correctly fill in the blank on this statement is -4, because 1.7 x 10 ^ -4 = 0.00017
10^-4 = 0.0001, and when you multiply that by 1.7, that is 0.00017.
Answer:
Step-by-step explanation:
3.4 times 2 is 6.8
pemdas for the second one. 2 times 6 is 12. 33+10-12, 31
102/22
4.3636
Answer: 0.3679
Step-by-step explanation:
The formula for Poisson distribution :-
Let x be the number of breakdowns.
Given : The rate of breakdown per week : 0.5
Then , for 2 weeks period the number of breakdowns =
Then , the probability that there will be no breakdown on his car in the trip is given by :-
Hence, the required probability : 0.3679