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Serjik [45]
4 years ago
6

Select the correct answer,

Mathematics
2 answers:
o-na [289]4 years ago
8 0

Answer:

C. 60

Step-by-step explanation:

60+10=70

Margaret [11]4 years ago
3 0

Answer: x = 60

Step-by-step explanation:60 + 10 = 70

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lyudmila [28]
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Identify the percent of change as an increase or a decrease. 4/5 to 3/5 Increase Decrease Find the percent of change. Round to t
Andreyy89
It is 10 percent. Hope that helps
8 0
3 years ago
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
I really need this one to be right please!
umka2103 [35]

Answer:

D

Step-by-step explanation:

B needs to be 0 or else there is an extra constant term which makes the equation non proportional

5 0
3 years ago
Leah needs 3 ounces of brown rice. She has 7/8 of an ounce of brown rice. What is the amount of brown rice, r, Leah still needs?
padilas [110]
17/8 or 2 1/8 this is correct I am pretty sure your welcome for the help man
6 0
4 years ago
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