Please answer this correctly

Mathematics

1 answer:

ipn [44]3 years ago

7 0

Answer:

Step-by-step explanation:

Set the height of the bar to 1 because there is only 1 number between 40-49 i.e. 49

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2x + 2y + 2z<br> what does this equal

BlackZzzverrR [31]

Answer:

$2\left(x+y+z\right)$

Step-by-step explanation:

$2x+2y+2z$

Factor out common term (2):

$2\left(x+y+z\right)$

5 0

3 years ago

A target has a bull’s-eye with a diameter of 2 inches. the outer ring is 1 inch wide. what is the area of the outer ring?

andrew11 [14]

The diameter of the outer ring will be 4 inches since it extends one inch beyond the bull's eye from either side. See the attached image for clarification.

The area of the outer ring can be expressed as:
$Area_{outerring} = Area_{outercircle} - Area_{bullseye}$
This is because we need to take into account of the space taken up by the bullseye.

Now we set up our equation:
$Area_{outerring} = \pi r^{2}_{outercircle} - \pi r^{2}_{bullseye}$

Now plug and solve:
$Area_{outerring} = \pi 2^{2} - \pi 1^{2}$
$Area_{outerring} = 4\pi - \pi$
$Area_{outerring} = 9.42477796$