4 years ago

How do you calculate midpoint on a coordinate plane?

1 answer:

6 0

Answer: You find midpoint by adding the two x values together and dividing by 2, then adding the two y values together and dividing by two.

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A circular table has a circumfrence of 18.84. What is the approximate area to the nearest square yard?

maria [59]

C= $2 \pi r$ so
18.84=2*3.14r
18.84=6.28r
r=3

$A= \pi r^{2}$
A=3.14*9
A=28.26 or when rounded is 28

Hope that helps

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3 years ago

What number can be added to the following data so that the range of the data will be 78?

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3 years ago

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Which equation can be solved using the expression -3 plus or minus the square root of (3)^2+4(10)(2)/2(10) for x?

monitta

Answer: B. 2=3x+10x^2

Step-by-step explanation:

The expression means the quadratic function equation.

B = 10x^2 + 3x -2 = 0

the equation is [-b ±√(b^2 -4ac)]/2a

b should be +3 to become -3 when it is plugged into the equation, and 'a' should be 10, and c should be -2.

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3 years ago

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mihalych1998 [28]

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3 years ago

You have a bag of 15 marbles. 8 are red. 5 are blue. 2 are green. You asked 15 people to pull a random marble and replace it. Th

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We cant know what will happen as it's just probability but both joe and Jill are making educated guesses based on probabilities, just different kinds.

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