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3 years ago

Click on all the points that are solutions to y = x^2 - 9.

Mathematics

2 answers:

NemiM [27]3 years ago

7 0

Answer:b and C

Step-by-step explanation:

Ymorist [56]3 years ago

5 0

A & B .........................

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(-2,-1) (1,-1) find the distance between two points

Daniel [21]

Answer:

Step-by-step explanation:

$\bold{METHOD\ 1:}\\\\\text{Use the formula:}\\\\d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\\text{Substitute the coordinates of the give points:}\\\\d=\sqrt{(1-(-2))^2+(-1-(-1))^2}=\sqrt{(1+2)^2+(-1+1)^2}\\\\=\sqrt{3^2+0^2}=\sqrt9=3$

$\bold{METHOD\ 2:}\\\\\text{We can see that the second coordinates of the points (ordinate) are the same.}\\\text{Therefore, the distance between these points is equal to the distance}\\\text{ between the first coordinates (abscissa).}\\\\d=|1-(-2)|=|1+2|=|3|=3$

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4 years ago

A study of 1200 randomly selected flights of a major airline showed that 820 of them arrived on time. What is the probability of

dusya [7]

Answer:

31.6 percent

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On time: 820/1200= %68.3

Late: 380/1200= %31.6

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3 years ago

Find the area of a circle with radius, r = 52cm squared

luda_lava [24]

Answer: 849

Step-by-step explanation:

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