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3 years ago

Describe the process of subtracting a negative integer from a positive integer

Mathematics

1 answer:

emmasim [6.3K]3 years ago

5 0

Its basically just subtracting from one another

for example, 6-6 is 6

or -4-3= 7

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Simplify the expression, show your work

Mila [183]

Answer:

$\dfrac{-y(2x^2 + y)}{x(6x - 5y^2)}$

Step-by-step explanation:

$\dfrac{\frac{1}{x^2}+\frac{2}{y}}{\frac{5}{x}-\frac{6}{y^2}} =$

To eliminate the denominators of the main numerator and denominator, we multiply the numerator and denominator of the main fraction by the LCD of all small denominators.

The LCD of x^2, y, x, and y^2 is x^2y^2.

$= \dfrac{x^2y^2 \times (\frac{1}{x^2}+\frac{2}{y})}{x^2y^2 \times (\frac{5}{x}-\frac{6}{y^2})}$

$= \dfrac{y^2 + 2x^2y}{5xy^2 - 6x^2}$

$= \dfrac{y(y + 2x^2)}{x(5y^2 - 6x)}$

$= \dfrac{-y(2x^2 + y)}{x(6x - 5y^2)}$

4 0

4 years ago

State a true conclusion.

VLD [36.1K]

我想这是选项 1...因为六月是在夏天

希望有帮助:)

3 0

3 years ago

Kayla's father throws Kayla a graduation party that costs $775. He pays the DJ $250, $75 for the cake, and $5 per party guest fo

Charra [1.4K]

Answer:

90 people

Step-by-step explanation:

Total: $775

DJ: $250

Cake: $75

Unknown party guests each getting $5

Let the unknown be x

We can form an equation; DJ + Cake + x number of party guests = $775

250 + 75 + 5x = 775

325 + 5x = 775

Subtract 325 from both sides of the equals sign.

5x = 450

Make x the subject and divide both sides by 5

x = 90

There were 90 party guests.

7 0

4 years ago

I need help plz! ( Thank u )

devlian [24]

y/3 = h

Multiply both sides by 3:

y = 3h

4 0

3 years ago

Which of the following best explains why

Dima020 [189]

We can see values of angles in degrees first

$\frac{5\pi}{6} = \frac{5 \times 180}{6}= \frac{900}{6}$ = 150°

Similarly

$\frac{5\pi}{3} = \frac{5 \times 180}{3}= \frac{900}{3}$ = 300°

Now reference angle means positive acute angle they will have

As we can see in attachment 150° lies in second quadrant so its reference angle will be 180°-150° = 30° from x axis line as shown.

Where as angle 300° lies in fourth quadrant so its reference angle will be 360° - 300° = 60° from x axis as shown. So clearly both reference angles are different . So 1st choice " angles donot have same reference angle" best explains it

Choice (2) and (3) are incorrect as tan is positive only in first and third quadrants and angle 300° is in fourth quadrant.

since angle 150° is in second quadrant and 300° is in fourth quadrant so both will have same negative sign so choice (4) is not correct.

So final ansewr is choice (1) "the angles donot have same reference angle"

8 0

4 years ago