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Yanka [14]
2 years ago
10

25 points! Please help! Will give brainliest to correct answer!

Mathematics
2 answers:
Elena L [17]2 years ago
6 0

Answer:

I think AC is 6.

Step-by-step explanation:

This looks like an equilateral triangle so that means because there is a 3 on  one side of the line it should be the same on the other side of the line so 3 x 2 = 6.

Angelina_Jolie [31]2 years ago
4 0

Step-by-step explanation:

triangle \: abd \\ using \: pythagoras \: theorem \\  {hyp}^{2} =  {adj}^{2} +  {opp}^{2}  \\   {12}^{2}  =  {3}^{2} +  {opp}^{2}  \\ 144 = 9 +  {x}^{2}  \\ 144 - 9 =  {x}^{2}  \\ 135 =  {x}^{2} \\ take \: the \: square \: of \: both \: sides \\x = 11.62

using the opposite side of triangle and

using \: pythagoras \: theorem \\  {16}^{2} =  {11.62}^{2} +  {x}^{2} \\ 256 = 135.02 +  {x}^{2}  \\ 256 - 135.02 =  {x}^{2}  \\ 120.198 =  {x}^{2}  \\ take \: the \: roots \: of \: both \: sides \\ x = 10.96

therefore the length of line AC

= 3 + 10.96 \\  = 13.96

hope this helps

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The table of values can be formed as follows;

Day,   Cost

1,         $44

2,        $67

3,        $90

4,        $113

7,        $182

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From the given values and the scatter plot, there is a straight line relationship between the cost and the number of days of rental of a car.

The line of best fit is therefore a straight line and from the constant increase in cost ($23) for each extra day of rental, it is possible to find the slope, m, of the data as follows;

Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}

(x₁, y,) and (x₂, y₂) can be taken as (1, $44) and (3, $90) respectively to give;

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The cost of renting the car for 20 days is then;

10×23 + 21 = $481

The cost of renting the car for 20 days = $481.

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3 years ago
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