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Afina-wow [57]
3 years ago
15

Find the Quadratice function

alt="y=a(x-h)x^{2}" align="absmiddle" class="latex-formula"> with given vertex (5,8) and given point (1,3)
Mathematics
1 answer:
Pani-rosa [81]3 years ago
4 0

Given:

Consider the quadratic function is

y=a(x-h)^2+k

With given vertex (5,8) and given point (1,3).

To find:

The equation of quadratic function.

Solution:

The quadratic function is

y=a(x-h)^2+k               ...(i)

Where, (h,k) is the vertex and a is a constant.

Vertex is (5,8). So,

(5,8)=(h,k)

h=5,k=8

Putting h=5,k=8 in (i), we get

y=a(x-5)^2+8           ...(ii)

The given point is (1,3). Putting x=1 and y=3 in  (ii), we get

3=a(1-5)^2+8

3-8=a(-4)^2

-5=16a

-\dfrac{5}{16}=a

Putting a=-\dfrac{5}{16} in (ii), we get

y=-\dfrac{5}{16}(x-5)^2+8

Therefore, the required quadratic function is y=-\dfrac{5}{16}(x-5)^2+8.

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Slove the followings.
DaniilM [7]

2. The number of adults who live in the house is <em>3</em><em> </em>(1,200/400).

3.a. If an adult recycled the <em>glass, paper, and card</em> that have 42% of the rubbish, the adult will generate 232 kg (400 kg x (1 - 42%) of rubbish.

b. If the adult, in addition, had a <em>composite for vegetable and decomposable material</em>, he will generate 152 kg (400 kg x (1 - 62%).

Data and Calculations:

1 ton = 1,000 kg

Weight of rubbish produced by an adult per year = 400 kg

Total kg of rubbish produced by the family = 1,200 kg (1,000 x 1.2)

Percentage of Vegetable and decomposable material = 20%

Percentage of glass, paper, and card = 42% (33% + 9%)

Learn more: brainly.com/question/14954924

7 0
2 years ago
Select the correct answer. The owner of a sporting goods store gathered data about the numbers of men’s, women’s and children’s
mamaluj [8]

I don't know if this is right, but I'm pretty sure it's B.

7 0
3 years ago
What is the midpoint of a segment whose endpoints are (-5,6) and (-7,2)?
zloy xaker [14]
The answer to the question is b

5 0
3 years ago
It is known that 10% of the calculators shipped from a particular factory are defective. In a random sample of ten calculators,
umka2103 [35]

Answer:

0.7361

Step-by-step explanation:

In this question we have

number to be 10

Then we have a probability of 10% = 0.10

We have q = 1-p

= 1-0.10 = 0.90

Then the probability of not more than 1 being defective:

P(x=0) + p(x= 1)

(10C0 x 0.1⁰ x 0.9^10-0)+(10C1 x 0.1¹ x 0.9^10-1)

= 1 x1 x0.3487 + 10 x 0.1 x 0.3874

= 0.3487 + 0.3874

= 0.7361

This is the the required probability and this answers the question.

probability = 10 percent = 0.1

q= 1- 10percent = 90% = 0.9

n = 4

To get the required probabiltiy for this question is

P(not greater than one is defective )=P(x=0)+P(x=1)

= 4C0x(0.1)⁰x(0.9)⁴+4C1x(0.1)¹x(0.9)³

= 0.9477

The required probability is 0.9477

5 0
3 years ago
What answee is it?? :))))
Nataliya [291]

Step-by-step explanation:

The answer is C

We can easily eliminate B and D since Ms. Macdonald isn't starting with 3 rabbits.

We can also eliminate choice A, because 5 to the 3rd power isn't 15.

5 to the 3rd power is 125, therefore the choice is C

8 0
3 years ago
Read 2 more answers
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