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2 years ago

10

Solve each inequality. Graph and check the solution.

1 answer:

frosja888 [35]2 years ago

5 0

Answer:

xxxx

Step-by-step explanation:

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Multiply. −2/21×27/40 Enter your answer as a fraction, in simplified form, in the box.

Taya2010 [7]

That would be -12852/125 I believe

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3 years ago

25-1/2{5+4(3+2-1+3)}

Wittaler [7]

Answer:

8 $\frac{1}{2}$

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3 years ago

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7. Find the missing lengths of the sides

Aleonysh [2.5K]

Answer:

a = b = 12 feet.

Step-by-step explanation:

An isosceles right triangle always has its sides in the ratio 1:1:√2.

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2 years ago

Find the rectangular coordinates of the point with the polar coordinates ordered pair 7 comma 2 pi divided by 3.

Morgarella [4.7K]

Answer:

$\left(-\dfrac{7}{2},\dfrac{7\sqrt{3}}{2}\right)$ .

Step-by-step explanation:

The given point is

$\left(7,\dfrac{2\pi}{3}\right)$

We need to find the rectangular coordinates of the given point.

If a polar coordinate is $(r,\theta)$ , then

$x=r\cos theta$

$y=r\sin theta$

In the given point $\left(7,\dfrac{2\pi}{3}\right)$ ,

$r=7,\theta=\dfrac{2\pi}{3}$

Now,

$x=7\cos \dfrac{2\pi}{3}$

$x=7\cos \left(\pi-\dfrac{\pi}{3}\right)$

$x=-7\cos \left(\dfrac{\pi}{3}\right)$

$x=-7\left(\dfrac{1}{2}\right)$

$x=-\dfrac{7}{2}$

and,

$y=7\sin \dfrac{2\pi}{3}$

$y=7\sin \left(\pi-\dfrac{\pi}{3}\right)$

$y=7\sin \left(\dfrac{\pi}{3}\right)$

$y=7\left(\dfrac{\sqrt{3}}{2}\right)$

$y=\dfrac{7\sqrt{3}}{2}$

Therefore, the required point is $\left(-\dfrac{7}{2},\dfrac{7\sqrt{3}}{2}\right)$ .

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3 years ago

At a local carnival, a hot dog costs $1.50 each and water costs $0.80 each. You want to buy food and water for yourself and your

Genrish500 [490]

<span>Let x be the amount of hot dog and let y be the amount of water. So you will pay for it 1.50*x+0.80*y. Since you do not want to spend more than 20$, it should satisfy the inequality 1.50*x+0.80*y<=20.</span>

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3 years ago