3 years ago

5/3 plus 11/4 I NEED IT FAST!!

Mathematics

1 answer:

slega [8]3 years ago

6 0

The answer is 53/12=4 5/12

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Is 3/47 a rational number

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Yes 3/47 is a irrational number

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Determine whether lines BT and MV are parallel, perpendicular, or neither. You must show all of your work to earn full credit.

Dafna1 [17]

<h3>Answer:</h3>

BT ⊥ MV

<h3>Explanation:</h3>

The direction vector BT is ...

... T - B = (5, 12) - (1, -4) = (4, 16)

The direction vector MV is ...

... V - M = (-4, 2) - (-8, 3) = (4, -1)

One is not a multiple of the other, so the lines are <em>not parallel</em>.

The dot-product of these direction vectors is

... (4, 16)•(4, -1) = 4·4 + 16·(-1) = 0

When the dot-product is zero, the vectors are perpendicular.

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3 years ago

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3 years ago

Gisele solved the quadratic equation x2 + 5x - 6 = 0 by factoring.

Nataliya [291]

For this case we have the following quadratic equation:

$x ^ 2 + 5x-6 = 0$

To factorize, we must find two numbers that when multiplied result in -6 and when added together result in +5. These numbers are: -1 and +6

$-1 + 6 = 5\\-1 * 6 = -6$

Then we factor:

$(x-1) (x + 6) = 0$

Thus, the roots are:

$x_ {1} = 1\\x_ {2} = - 6$

So, Gisele was wrong in step 2. She couldn't find the correct values to factorize.

Answer:

Gisele was wrong in step 2. She couldn't find the correct values to factorize.

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All of the following fractions are proper fractions, except

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Answer:

1/2

Step-by-step explanation:

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