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3 years ago

What is the "formula" for surface area of a rectangular prism? Please

Mathematics

2 answers:

Naily [24]3 years ago

6 0

Answer:

A = Ph + 2B

Step-by-step explanation:

where P is perimeter of the base, h is height of the prism (this is the rectangular lateral surface area) and B is the area of the base

Salsk061 [2.6K]3 years ago

5 0

Answer:

2(bh + lh + hb)

Step-by-step explanation:

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notsponge [240]

X=((log(225000/200000)/log(1.03))
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X=3.98 years

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3 years ago

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olya-2409 [2.1K]

Answer:

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3 years ago

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3 years ago

Equal set is equivalent set but equivalent set not need equal set? why

nasty-shy [4]

Equal sets have the exact same elements, so they must have the same number of elements. Therefore, equal sets must also be equivalent. No, not all equivalent sets are also equal sets

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3 years ago

A golfer keeps track of his score for playing nine holes of golf (half a normal golf round). His mean score is 8080 with a sta

solniwko [45]

Answer:

Therefore the mean and standard deviation of his total score if he plays a full 18 holes are 160 and $11\sqrt2$ respectively.

Step-by-step explanation:

Given that,

For the first 9 holes X:

E(X) = 80

SD(X)=13

For the second 9 holes Y:

E(Y) = 80

SD(Y)=13

For the sum W=X+Y, the following properties holds for means , variance and standard deviation :

E(W)=E(X)+E(Y)

and

V(W)=V(X)+V(Y)

⇒SD²(W)=SD²(X)+SD²(Y) [ Variance = (standard deviation)²]

$\Rightarrow SD(W)=\sqrt{SD^2(X)+SD^2(Y)}$

∴E(W)=E(X)+E(Y) = 80 +80=160

and

∴ $SD(W)=\sqrt{SD^2(X)+SD^2(Y)}$

$=\sqrt{11^2+11^2}$

$=\sqrt{2.11^2}$

$=11\sqrt2$

Therefore the mean and standard deviation of his total score if he plays a full 18 holes are 160 and $11\sqrt2$ respectively.

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3 years ago