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CaHeK987 [17]
2 years ago
15

Evaluate 3m2 -4 if m = -3​

Mathematics
1 answer:
zhenek [66]2 years ago
8 0

Answer:

23

Step-by-step explanation:

3m^{2} - 4 = 3 * (-3)^{2} - 4 = 3 * 9 - 4 = 27 - 4 = 23

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Answer & Step-by-step explanation:

For this problem, we will use the distance formula.

d=\sqrt{(x2-x1)^2+(y2-y1)^2}

For our (x1, y1), we will use (-3, 1). For our (x2, y2), we will use (1, 5). Now let's plug in our numbers and solve the problem.

d=\sqrt{(1-(-3))^2+(5-1)^2}

d=\sqrt{4^2+4^2}

d=\sqrt{16 + 16}

d=\sqrt{32}

d=5.657

So, the distance between (-3,1) and (1,5) is 5.657 units.

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