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Alex_Xolod [135]
4 years ago
13

Which polynomial expression represents the area of the outermost square tile, shown below?

Mathematics
1 answer:
erastova [34]4 years ago
5 0

Answer:

x² - 6x + 9

Step-by-step explanation:

(x - 3)² = x² - 6x + 9

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-1+5x≥-16 I dont know how to solve
olasank [31]

Answer:  x \ge -3

Explanation:

Follow PEMDAS in reverse to undo what's happening to x.

We first add 1 to both sides, then divide both sides by 5 to fully isolate x.

Refer to the steps below to see what I mean.

-1 + 5x \ge -16\\\\5x \ge -16+1\\\\5x \ge -15\\\\x \ge -15/5\\\\x \ge -3\\\\

The inequality sign stays the same the entire time. The only time it flips is when you divide both sides by a negative number.

The solution set for x is anything -3 or larger.

If x was an integer, then we could say the solution set is {-3, -2, -1, 0, 1, 2, 3, 4, 5, 6, ...}

7 0
2 years ago
Mai made $112 for 8 hours of work.
vodomira [7]

Answer:

18 hours

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the area of the head using each persons method. Show your reasoning.
diamong [38]

The area of the hexagonal head using each persons (Andre & Lin) method is;

<u><em>Total Area using Lin's method = 93.6 ft²</em></u>

<u><em>Total Area using Andre's method = 93.6 ft²</em></u>

  • A) Lin's Method; From division of polygons , we know that a regular hexagon can be divided into 6 equilateral triangles.

From the image, a side of the hexagon is 6 inches. This means that all sides of each triangle will be also 6 inches.

Formula for area of a triangle = ¹/₂(base x height)

We see a perpendicular distance spanning from one end of the hexagon to the other end passing through the centre of the hexagon. It passes 2 triangles.

Thus, the height of one triangle = 10.4/2 ft = 5.2 ft

Area of one triangle =  ¹/₂ × 6 × 5.2 = 15.6 ft²

Thus, Area of hexagon = area of 6 triangles = 6 × 15.6 = 93.6 ft²

  • B) Andre's method;

Let us first find the area of the rectangle;

Area of rectangle = length × width

Area of rectangle = 10.4 × 6 = 62.4 ft²

For the rectangle, we know three sides now which are;

10.4 ft, 6 ft, 6 ft but we don't know the height and as such we will use heron's formula to get the area of one triangle;

A = √s((s - a)(s - b)(s - c))

where; a,b and c are the 3 sides of the triangle

s = (a + b + c)/2

Thus; s = (10.4 + 6 + 6)/2 = 11.2 ft

Thus;

A = √11.2((11.2 - 10.4)(11.2 - 6)(11.2 - 6))

A = 15.6 ft²

There are 2 triangles and so Area of 2 triangles =2 × 15.6 = 31.2 ft²

Thus;

Total Area = 62.4 ft² + 31.2 ft²

Total Area = 93.6 ft²

Read more at; brainly.com/question/15424654

6 0
2 years ago
If AB=BC=CD what is the area of the green region? please show full workings ​
Romashka-Z-Leto [24]

The area of the green region is of:

9 units².

<h3>How to obtain the area of the green region?</h3>

The base is composed by three equal segments, hence their lengths are given as follows:

AB = BC = CD = 9/3 = 3.

The heights are given as follows:

  • B = 2.
  • C = 4.
  • D = 6.

As they are proportional.

The green region is composed by:

  • A rectangle of dimensions 3 and 2.
  • A right triangle of sides 3 and 2.

The area of the rectangle is given by the multiplication of the dimensions, hence:

Ar = 3 x 2 = 6 units².

The area of the triangle is given by half the multiplication of the dimensions, hence:

At = 0.5 x 3 x 2 = 3 units².

Then the area of the green region is given by:

A = Ar + At = 6 + 3 = 9 units².

More can be learned about the area of a figure at brainly.com/question/25292087

#SPJ1

3 0
1 year ago
I NEED HELPPP is it 112 or 56 ?????
11Alexandr11 [23.1K]
The answer is 56!
Please mark brainliest
7 0
3 years ago
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