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2 years ago

-2y-12 How do I show my work?????

Mathematics

1 answer:

grin007 [14]2 years ago

4 0

Factor - 2y - 12

- 2y - 12

= - 2( y + 6)

answer is - 2( y + 6)

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A balanced dime is tossed three times. The possible outcomes are represented in the table.

elena-s [515]

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so the probability is 4/8 = 1/2.

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3 years ago

the five gonzalez children had a total of $66.30 to spend at the fair. How much would each child have to spend?

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2 years ago

Options: y= -2x - 6 y= 2/3x + 6 y= -2/3x + 6 y=2x + 6

melisa1 [442]

Answer:

y = - $\frac{2}{3}$ x + 6

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (0, 6) and (x₂, y₂ ) = (6, 2) ← 2 points on the line

m = $\frac{2-6}{6-0}$ = $\frac{-4}{6}$ = - $\frac{2}{3}$

The line crosses the y- axis at (0, 6) ⇒ c = 6

y = - $\frac{2}{3}$ x + 6 ← equation of line

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2 years ago

Integrate sin²2x cos²2x dx

DochEvi [55]

$\sin^2x=\dfrac{1-\cos2x}2$
$\cos^2x=\dfrac{1+\cos2x}2$

From the identities above, you have

$\sin^22x\cos^22x=\dfrac{(1-\cos4x)(1+\cos4x)}4=\dfrac{1-\cos^24x}4$

Applying once more, you have

$\dfrac{1-\cos^24x}4=\dfrac{1-\dfrac{1+\cos8x}2}4=\dfrac{1-\cos8x}8$

So,

$\displaystyle\int\sin^22x\cos^22x\,\mathrm dx=\frac18\int(1-\cos8x)\,\mathrm dx=\frac x8-\frac1{64}\sin8x+C$

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2 years ago

Does a graph represents a function why or why not

vekshin1

It does if the x values don't repeat it they repeat it doesn't

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2 years ago