3 years ago

-x^2-4x-2=2 using quadratic formula

Mathematics

1 answer:

Natasha2012 [34]3 years ago

7 0

The answer to this would be x= -2

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NEED HELP ASAP!! don’t wanna fail my math quiz

tatyana61 [14]

Answer:

$\frac{2}{3}$

Step-by-step explanation:

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3 years ago

-5/4-(-1/6) help please

tiny-mole [99]

A way to add fractions that always works is to multiply each numerator by the denominator of the other, then express the sum of products over the product of the denominators.
$\dfrac{a}{b}+\dfrac{c}{d}=\dfrac{a}{b}\cdot\dfrac{d}{d}+\dfrac{c}{d}\cdot\dfrac{b}{b}\\\\=\dfrac{ad+bc}{bd}$

Here, you have
$\dfrac{-5}{4}-\dfrac{-1}{6}=\dfrac{-5\cdot6-(-1)\cdot4}{4\cdot6}=\dfrac{-26}{24}\\\\=\dfrac{-13}{12}=-1\frac{1}{12}$

The sum is -1 1/12

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3 years ago

Lanie reads 25 pages in 30 minutes. If Paine reads 200 pages at the same rate how long will it take her?

lubasha [3.4K]

Answer:

240 minutes/ 4 hours

Step-by-step explanation:

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3 years ago

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the ratio of the areas of two rectangles is 4 to 5. if the area of the larger rectangle is 135 square feet, what is the area of

-BARSIC- [3]

Divide the number 135 and 5. It is going to be 27. Then you multiply 27 times 4. Then you get your answer which is 108.
Proportion set up....
small 4 ? small
----- --------
big 5 135 big
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4 years ago

Is 7/3 a rational number ?

boyakko [2]

Answer: Yes

Step-by-step explanation: To determine whether 7/3 is a rational number, remember all fractions either positive or negative are rational numbers.

Therefore, 7/3 is a rational number.

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3 years ago

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