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3 years ago

Which statement correctly describes the expression (15)(-8)?

Mathematics

2 answers:

IrinaK [193]3 years ago

7 0

Answer:

Step-by-step explanation:

NEGATIVE TIMES POSITIVE WILL GIVE A NEGATIVE PRODUCT

Alla [95]3 years ago

4 0

Answer:

the answer is c

Step-by-step explanation:

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What is the sum of 16/100 + 6/10

AlexFokin [52]

0.76 or 76/100. Simply add 2 zeros to 6/10 to make it 60/100. That'll make the problem alot easier :).

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3 years ago

Find the rectangular coordinates of the point ( -3, 1/2 π)

alexdok [17]

Answer:

$x = -3 cos (\frac{\pi}{2})= 0$

$y = -3 sin (\frac{\pi}{2})= -3$

And then the rectangular coordinates for this case are :

$(x = 0 , y = -3)$

Step-by-step explanation:

We have the following point given $P = (-3, \frac{\pi}{2})$ and we want to conver from polar to rectangular coordinates and we need to use the following formulas:

$x = r cos \theta$

$y = r sin \theta$

For this case we have that:

$r = -3$

And:

$\theta = \frac{\pi}{2}$

Replacing we got:

$x = -3 cos (\frac{\pi}{2})= 0$

$y = -3 sin (\frac{\pi}{2})= -3$

And then the rectangular coordinates for this case are :

$(x = 0 , y = -3)$

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3 years ago

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3 years ago

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Find an expression which represents the difference when (-3x + 5y) is subtracted

lubasha [3.4K]

Step-by-step explanation:

-3x+5y-(-6x)+3y

-3x+5y+6x+3y

-3x+6x+5y+3y

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3 years ago

The radius of a circle is 13 find its area un terms of pi

Leto [7]

The area of the circle is given as:

$A=\pi r^2$

Plugging the value of the radius we have that:

$A=\pi(13)^2=169\pi$

Therefore the area in terms of pi is:

$A=169\pi$

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1 year ago