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TEA [102]
3 years ago
13

Cristian was installing a fence with his Dad on all four sides of a backyard. The yard is 40 feet long and 50 feet wide. Two-fif

ths of the fence will be chain link. How many feet of chain link will him and his Dad need?
Mathematics
1 answer:
Wewaii [24]3 years ago
5 0

Answer:

72 feet

Step-by-step explanation:

We first need to find the perimeter of yard, then, we find 2/5 of the perimeter to find the length of chain link that they will need.

The yard is rectangular and it has dimensions 40 feet long and 50 feet wide.

The perimeter of a rectangle is given as:

P = 2(L + W)

where L = length

W = width

Therefore, the perimeter of the yard is:

P = 2(40 + 50)

P = 2(90) = 180 feet

The length of chain link that they will need is therefore:

2/5 * 180 = 72 feet

They need 72 feet of chain link.

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2 years ago
855000000000 in scientific notation pls help ASAP!!!
igor_vitrenko [27]

Answer:

8.55 × 10^{11}

Step-by-step explanation:

3 0
3 years ago
A box contain 12 balls in which 4 are white 3 are blue and 5 are red.3 balls are drawn at random from the box.find the chance th
Anastasy [175]

Answer:

3/11

Step-by-step explanation:

From the above question, we have the following information

Total number of balls = 12

Number of white balls = 4

Number of blue balls = 3

Number of red balls = 5

We solve this question using combination formula

C(n, r) = nCr = n!/r!(n - r)!

We are told that 3 balls are drawn out at random.

The chance/probability of drawing out 3 balls = 12C3 = 12!/3! × (12 - 3)! = 12!/3! × 9!

= 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1/(3 × 2 × 1) × (9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1)

= 220 ways

The chance of selecting 3 balls at random = 220

To find the chance that all the three balls are selected,

= [Chance of selecting (white ball) × Chance of selecting(blue ball) × Chance of selecting(red balls)]/ The chance/probability of drawing out 3 balls

Chance of selecting (white ball)= 4C1

Chance of selecting(blue ball) = 3C1 Chance of selecting(red balls) = 5C1

Hence,

= [4C1 × 3C1 × 5C1]/ 220

= 60/220

= 6/22

= 3/11

The chance that all three are selected is = 3/11

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3 years ago
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Answer:

y = (1/4)x+3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Determine the perimeter of triangle AGN.
Harman [31]

Answer:

150

Step-by-step explanation:

The perimeter of a triangle is defined or given as the summation of all its 3 sides.

Mathematically,

The perimeter of a Triangle = Side A + Side B + Side C

In the above question, we are to find the perimeter of Triangle AGN.

In the diagram , we have an inscribed circle of RTE

Therefore these values are given in the question.

Side AR = 35

Side RG = 21

Side EN = 19

We have an inscribed Triangle in the question with its side touching the Triangle. This means we have lines that are tangent. Hence we have,

Side EG = Side RG = 21

Side TN = Side EN = 19

Side AT = Side AR = 35.

Therefore, The Perimeter of Triangle AGN = Side AT + Side AR + Side TN + Side EN + Side EG + Side RG

= 35 + 35 + 19 + 19 + 21 + 21

= 150

The perimeter of Triangle AGN is 150

3 0
3 years ago
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