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trapecia [35]
3 years ago
15

Two similar prisms have heights of 4 cm and 10 cm. what is the ratio of their surface areas?

Mathematics
2 answers:
MaRussiya [10]3 years ago
8 0
The first is 4 : 25,
the second is 8:125
ioda3 years ago
6 0
The first one is B4:25
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Y = −(x + 4)2 − 7 vertex
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The vertex (h,k) is (-4,-7).

Step-by-step explanation:

I assume you are looking for the vertex y=-4(x+4)^2-7.

The vertex form of a quadratic is y=a(x-h)^2+k where the vertex is (h,k) and a tells us if the parabola is open down (if a<0) or up (if a>0). a also tells us if it is stretched or compressed.

Anyways if you compare y=-4(x+4)^2-7 to y=a(x-h)^2+k , you should see that a=-4,h=-4,k=-7.

So the vertex (h,k) is (-4,-7).

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Step-by-step explanation:

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3 years ago
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Using statistical concepts, it is found that the number of outcomes that are possible for the complement of the union of Events J and K is of 43.

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It means that at least one of event J or event K is true, hence, it is composed by employees that are either considered support staff(less than 5 years of experience) or employees that have more than five years of experience, combining a total of 7 + 8 = 15 employees.

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The total number of outcomes of the union of J and K, plus the complement, add to the total number of 58, hence:

15 + x = 58

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The number of outcomes that are possible for the complement of the union of Events J and K is of 43.

More can be learned about complementary events at brainly.com/question/9752956

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