Answer:
I tried everything and either I'm doing it wrong or you wrote this wrong
Step-by-step explanation:
complette the square to get vertex form or y=a(x-h)^2+k
(h,k) is vertex
1. group x terms, so for y=ax^2+bx+c, do y=(ax^2+bx)+c
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2, factor out the leading coefinet (constant in front of the x^2 term), basicallly factor out a
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3. take 1/2 of the linear coefient (number in
front of the x), and square it ,then add negative and positive of it
inside parnthases
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4. complete the squre and expand
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so
y=-1/4x^2+4x-19
group
y=(-1/4x^2+4x)-19
undistribute -1/4
y=-1/4(x^2-16x)-19
take 1/2 of -16 and squer it to get 64 then add neg and pos inside
y=-1/4(x^2-16x+64-64)-19
factorperfect square
y=-1/4((x-8)^2-64)-19
expand
y=-1/4(x-8)^2+16-19
y=-1/4(x-8)^2-3
vertex is (8,-3)
Answer:
if it is 12.4 / 2 then answer is 6.2.
if the question is 12 , 4/2 the answer is 12, 2
hope this helps #answerwithquality #BAL
Answer:
The value of brand A=$75 billions
The value of brand B=$28 billions.
Step-by-step explanation:
Let the value of brand B be x billions.
We are told that brand A worth $47 more than brand B.
This implies that in terms of x the value of brand A is (x+47) billions.
Also, the total of both brand is $103 billions. Hence, we can write the following mathematics equation and solve for x.
subtracting 47 from both sides.
Dividing through by 2.
Therefore,
the value of brand B is $28 billions, and
the value of brand A=($28+$47)=$75.
The equation of the parabola is y = 5x² - 11x - 31
<h3>Parabola</h3>
The equation of a parabola is a quadratic equation in the form:
y = ax² + bx + c
Where a, b and c are constants.
At point (2, - 33):
- -33 = a(2)² + b(2) + c
- 4a + 2b + c = -33 (1)
At point (4, 5):
- 5 = a(4)² + b(4) + c
- 16a + 4b + c = 5 (2)
At point (5, 39):
- 39 = a(5)² + b(5) + c
- 25a + 5b + c = 39 (3)
Solving equation 1, 2 and 3 simultaneously gives:
a = 5, b = -11, c = -31.
The equation of the parabola is y = 5x² - 11x - 31
Find out more on parabola at: brainly.com/question/4148030
