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Kryger [21]
3 years ago
5

Help again pleaseeeeeee

Mathematics
2 answers:
siniylev [52]3 years ago
8 0
First, it's good to know that the factored form of a quadratic can give you the roots of the graph it matches with. This can be done by handling each bracket individually; let's use (x+3) and (x-5) for example. (x+3)(x-5)=0, so x+3=0 ∴ x=-3, and x-5=0 ∴ x=5
Knowing that, take a look at the graph's roots. They are (1,0) and (8,0). This means that the numbers in the brackets will be the opposite value of x for each coordinate. Therefore (x-1)(x-8), A, is your answer.
lisabon 2012 [21]3 years ago
4 0
Ok so we have the parabola at origin of y=-12 and crosses x-axis at points x=1,8 so, we could just look at where it crosses the x-axis and find it directly from there. it crosses x-axis at 1 and 8 so the answer can only be A to fit this criteria

You might be interested in
Two lines, a and b, are represented by the equations given below:
professor190 [17]

Answer:

-5,-11 because it satisfies both equations

Step-by-step explanation:

Plug -5 into both equations and you get -11

8 0
3 years ago
Find the service area of a cylinder with a base diameter of 6ft and height of 4ft
tatiyna

The service area of the cylinder is 42\pi square fts.

<h3>What is cylinder?</h3>

Two parallel bases joined by a curving surface make up the three-dimensional solid known as a cylinder.

Typically, the bases are shaped like circles. The height "h" of the cylinder stands for the perpendicular distance between the bases, while "r" stands for the cylinder's radius.

The uses of cylinder are-

  • A popular piece of scientific equipment used to determine the volume of a liquid is a graduated cylinder, sometimes referred to as a measuring cylinder or mixing cylinder.
  • Its form is slender and cylindrical. The measured amount of liquid is shown by each marked line on the graduated cylinder.

Total surface area of the cylinder formula:

It is the sum of the base surface area and the lateral surface area;

Total area = base area + lateral area , or

Total area = 2 π r² + (2 π r) h , or

Total area = 2 π r (r + h)

Calculation for the total area of the cylinder;

Base diameter is 6 ft

Radius is 6/2 = 3 ft

Height is 4 ft

Total area = 2\pi3(3 + 4)

                 = 6\pi×7

                 = 42\pi

Therefore, the total surface area of the cylinder is 42\pi square fts.

To know more about the surface area of the cylinder, here

brainly.com/question/10332927

#SPJ4

5 0
2 years ago
PLEASE HELP ME ASAP..........
Effectus [21]
7.079- the first option
3 0
3 years ago
Read 2 more answers
Molly had a $12 gift card to download music. She bought 8 songs that each cost the same amount. Write a variable equation, then
Ghella [55]

Answer:

Molly paid for each song $1.5

Step-by-step explanation:

Let

x ------> amount that Molly paid for each song

we know that

The amount that Molly paid for each song multiplied by 8 is equal to the gift card value

so

The linear equation that represent this problem is

8x=12

Solve for x

Divide by 8 both sides

x=12/8

x=\$1.5

Molly paid for each song $1.5

4 0
3 years ago
Complete the square to make a perfect square trinomial. Then, write the result as a binomial squared. n^2-4n/3
ololo11 [35]

Answer:

(n- 2/3)²

Step-by-step explanation:

  • <em>Perfect square trinomial is: </em><em>a²+2ab+b²= (a+b)²</em>

We have:

  • n² - 4n/3

It can be put as:

  • n² -2×n×2/3

Here we consider n = a and -2/3 = b, then

  • b²= (-2/3)²= 4/9

Now we add 4/9 to a given binomial to make it perfect square:

  • n² - 2×n×3/2 + 4/9= (n- 2/3)²

So, added 4/9 and got a perfect square (n- 2/3)²

7 0
3 years ago
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