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3 years ago

Hellp meec plzz plzzz

Mathematics

1 answer:

Alexandra [31]3 years ago

8 0

Answer:

The answer is -7

Step-by-step explanation:

So 12 x -7 = -84

Easiest if you do this:

12 x -1 = -12

12 x -2 = 24

12 x -3 = 36

and so on and so forth.

keep following those steps and once you make it to 12 x -7, you'll get you're answer

hope this helps:) hope for brainliest.

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IgorC [24]

My best choice is A. -76. I might be wrong! Best of luck. :-)

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3 years ago

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31/8 as a mixed number?

Katyanochek1 [597]

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before soccer practice. Laura warms up jogging around the rectangular soccer field that is 80 yards by 120 yards how many yards

AfilCa [17]

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The answer is 19200

Step-by-step explanation:

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2 years ago

Find the volume of the wedge-shaped region contained in the cylinder x2 + y2 = 49, bounded above by the plane z = x and below by

fiasKO [112]

$\displaystyle\iiint_R\mathrm dV=\int_{y=-7}^{y=7}\int_{x=-\sqrt{49-y^2}}^{x=0}\int_{z=x}^{z=0}\mathrm dz\,\mathrm dx\,\mathrm dy$

Converting to cylindrical coordinates, the integral is equivalent to

$\displaystyle\iiint_R\mathrm dV=\int_{\theta=\pi/2}^{\theta=3\pi/2}\int_{r=0}^{r=7}\int_{z=r\cos\theta}^{z=0}r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\int_{\theta=\pi/2}^{\theta=3\pi/2}\int_{r=0}^{r=7}-r^2\cos\theta\,\mathrm dr\,\mathrm d\theta$
$=-\displaystyle\left(\int_{\theta=\pi/2}^{3\pi/2}\cos\theta\,\mathrm d\theta\right)\left(\int_{r=0}^{r=7}r^2\,\mathrm dr\right)$
$=\dfrac{2\times7^3}3=\dfrac{686}3$

4 0

3 years ago

Could someone please help ?

blondinia [14]

Answer:

Step-by-step explanation:

Put x = 2 into both equations:

For x- 10 = 2-10 = 8 (Not > 8)

For -0.5x-4 = -0.5*2-4 = -5 (Not < -8)

Hence, the answer is no.

4 0

2 years ago