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g100num [7]
3 years ago
11

Please help!!!! D:(grades 7-8 probability)​

Mathematics
1 answer:
dmitriy555 [2]3 years ago
6 0

Answer:

1/4 ch a chance of a car any color

Step-by-step explanation:

if you only have 4 cars and they are different colors, you get 1/4 chance to pick one

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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
Which two values of x are roots of 4x^2-6x+1
aleksandr82 [10.1K]

x= 3+√5/4,3-√5/4

Step-by-step explanation:

1.In general, given ax^2+bx+c=0, there exists two solutions where:

x= -b+√b^2 - 4ac/2a, -b-√b^2-4ac/2a

2.In this case, a=4, b=-6 and c=1.

x=6+√(-6)^2-4×4/2×4, 6-√(-6)^2-4×4/2×4

3.Simplify.

x=6+2√5/8, 6-√5/8

4.Simplify solutions.

x=3+√5/4, 3-√5/4

6 0
2 years ago
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2 Points<br> What is the measure of ZBPU?<br> ОВ. 40°<br> PREVIOUS
irakobra [83]
I dont know im sorry
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4 years ago
Vance ate a salad and of a turkey burger for dinner. The salad contained 80 calories and his entire meal contained 440 calories.
Andreas93 [3]

80x-440

Step-by-step explanation:

5 0
4 years ago
(08.02 LC) The dot plots below show the weights of the players of two teams: Two dot plots are shown one below the other. The to
valentinak56 [21]

Answer:

It would be much easier to answer of there was some diagram or something but if there is only just Team C and D then, it would be Team D

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3 years ago
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