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3 years ago

20 pts and brainiest if correct

Mathematics

1 answer:

amid [387]3 years ago

7 0

We have 1 square with side length 8 inches, and 4 triangles with a base length of 8 inches and a height of 15.

Surface area = (8 × 8) + 4(0.5 × 8 × 15)

The first part of this equation is the area of the square

The second part is the area of a triangle, multiplied by 4 (because there are 4 triangles)

= 64 + 4(60)

= 64 + 240

= 304 in²

The total surface area is 304 square inches.

Let me know if you need any clarifications, thanks!

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A physical fitness association is including the mile run in its secondary-school fitness test. The time for thisevent for boys i

valentina_108 [34]

Answer: 0.0107

Step-by-step explanation:

Given : The time for the event for boys in secondary school is known to possess a normal distribution with

$\mu=460\text{ seconds}\\\\\sigma=20\text{ seconds}$

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z-score : $\dfrac{x-\mu}{\sigma}$

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$P(x$

Hence, the probability that a randomly selected boy in secondary school can run the mile in less than 322 seconds = 0.0107

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3 years ago

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frutty [35]

Answer:

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Step-by-step explanation:

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sertanlavr [38]

Answer:

Step-by-step explanation:

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2 years ago

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Alinara [238K]

Answer:

(a) even: J, K, M, O; odd: L, N

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Step-by-step explanation:

Count the edge ends that intersect each vertex. You get ...

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These numbers are the <em>degree</em> of the vertex.

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Vertices with odd degree are L and N, since these both have degree 3, an odd number.

b) The vertices that are adjacent to J are the ones at the other ends of the edges that intersect vertex J. One of those two edges connects to vertex L; the other to vertex O. J is adjacent to L and O.

c) When we counted edges in part (a), we found vertex N to be of degree 3.

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I'm pretty sure it's D

Step-by-step explanation:

....

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4 years ago

Read 2 more answers