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2 years ago

9. Use the distance formula to find the distance between the points (-4,-4) and (4,4).

Mathematics

1 answer:

Tanzania [10]2 years ago

6 0

Answer:

Step-by-step explanation:

Distance formula = $(x_{1}-x_{2})+(y_{1}-y_{2})$

Depending on which point is A and Which point is B, the answer is one of the two.

However, there is no such thing as negative distance, so your answer is 16 points in a certain direction.

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tatyana61 [14]

Answer:

$\frac{5}{4}+or-\frac{3i\sqrt{7} }{4}$

Step-by-step explanation:

You can solve this equation with the quadratic formula which is:

$m_{1,2}=\frac{-b+or-\sqrt{b^{2}-4ac } }{2a}$

All you need to do is rearrange the equation (add $-\frac{11}{2}$ to both sides and then multiply both sides by 2) to get:

$2m^2-5m+11=0$

From this new equation, we can easily see that a = 2, b = -5, and c = 11 AND you don't have to work with as many fractions. Substitute the values for a, b, and c into the quadratic formula to get:

$m_{1,2}=\frac{5+or-\sqrt{(-5)^{2}-4(2)(11) } }{2(2)}$

That simplifies to:

$\frac{5}{4}+or-\frac{\sqrt{25-88} }{4}$

Which simplifies even further to:

$\frac{5}{4}+or-\frac{\sqrt{-63} }{4}$

Which gets you:

$\frac{5}{4}+or-\frac{3i\sqrt{7} }{4}$

P.S. The plus-minus sign wasn't working for me, so I had to just write, "+or-". I hope that didn't make it too confusing for you.

P.P.S. Hope this helps :) Don't forget to mark Brainliest if it did.

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3 years ago

A gift box has dimensions of: 8 1 2 inches, 5 1 2 inches, and 2 1 2 inches, respectively. how many cubes with side lengths of 1

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Number of 1/2-inch cubes width-wise = 5 1/2 ÷ 1/2 = 11
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Number of 1/2-inch cubes = 17 x 11 x 5 = 935

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Answer: 935 1/2-inch cubes are needed.
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Step-by-step explanation:

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2 years ago

9. Use the distance formula to find the distance between the points (-4,-4) and (4,4).​

9. Use the distance formula to find the distance between the points (-4,-4) and (4,4).