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Wittaler [7]
3 years ago
8

The graph below shows a line of best fit for data collected on the average high temperature in El Calafate as a function of the

average high temperature in Berlin.
y= -7/4x + 95
y=-4/7x + 615/7
y= - 7/4x + 615/7
y= -4/7x + 95
Mathematics
1 answer:
Novosadov [1.4K]3 years ago
4 0

Answer:

95xhsshsjsjeeiejjejsjsjsjwnnsnsmsmmwwnsnnsns

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Pretty Pavers company is installing a driveway. Below is a diagram of the driveway they are
prohojiy [21]

Answer:

The most correct option is;

(B) 958.2 ft.²

Step-by-step explanation:

From the question, the dimension of each square = 3 ft.²

Therefore, the length of the sides of the square = √3 ft.

Based on the above dimensions, the dimension of the small semicircle is found by counting the number of square sides ti subtends as follows;

The dimension of the diameter of the small semicircle = 10·√3

Radius of the small semicircle = Diameter/2 = 10·√3/2 = 5·√3

Area of the small semicircle = (π·r²)/2 = (π×(5·√3)²)/2 = 117.81 ft.²

Similarly;

The dimension of the diameter of the large semicircle = 10·√3 + 2 × 6 × √3

∴ The dimension of the diameter of the large semicircle = 22·√3

Radius of the large semicircle = Diameter/2 = 22·√3/2 = 11·√3

Area of the large semicircle = (π·r²)/2 = (π×(11·√3)²)/2 = 570.2 ft.²

Area of rectangle = 11·√3 × 17·√3 = 561

Area, A of large semicircle cutting into the rectangle is found as follows;

A_{(segment \, of \, semicircle)} = \frac{1}{4} \times (\theta - sin\theta) \times r^2

Where:

\theta = 2\times tan^{-1}( \frac{The \, number \, of  \, vertical  \, squrare  \, sides  \ cut  \,  by  \  the  \  large  \,  semicircle}{The \, number \, of  \, horizontal \, squrare  \, sides  \ cut  \,  by  \  the  \  large  \,  semicircle} )

\therefore \theta = 2\times tan^{-1}( \frac{10\cdot \sqrt{3} }{5\cdot \sqrt{3}} ) = 2.214

Hence;

A_{(segment \, of \, semicircle)} = \frac{1}{4} \times (2.214 - sin2.214) \times (11\cdot\sqrt{3} )^2 = 128.3 \, ft^2

Therefore; t

The area covered by the pavers = 561 - 128.3 + 570.2 - 117.81 = 885.19 ft²

Therefor, the most correct option is (B) 958.2 ft.².

4 0
2 years ago
Sara completes 2/5 of her math homework in class. What percent of homework is left for Sara to finish?
malfutka [58]

Answer:

.006%

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Help what’s the answer
aivan3 [116]

Answer: 2⁴ * 5

<u>Step-by-step explanation:</u>

                    80

                     ∧

                  8    10

                 ∧      ∧

               4  2   2  5

               ∧        

              2  2

80: 2 x 2 x 2 x 2 x 5


7 0
2 years ago
What shape are the sides of a rectangular pyramid?
Snowcat [4.5K]

Answer: Its a angle ...

Step-by-step explanation: Hope its fine.

5 0
3 years ago
What missing number would complete the factorization k^2 + 5k + 6 = (k + 2) (k + ? )
timurjin [86]
The answer would be 3. 
<span>k^2 + 5k + 6 = (k + 2) (k + 3)

HOPE THIS HELPS! ^_^</span>
6 0
3 years ago
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