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3 years ago

What is the total surface area of the square pyramid?

Mathematics

2 answers:

Sedaia [141]3 years ago

7 0

Answer:

144

Step-by-step explanation:

Hatshy [7]3 years ago

6 0

Answer:

144 in^2

Step-by-step explanation:

There are four triangular sides to this square pyramid. According to the area-of-a-triangle formula, A = (1/2)(b)(h), which here is A = (1/2)(8 in)(5 in) = 20 in^2.

Thus, the total lateral (side) area is 4(20 in^2) = 80 in^2.

The area of the bottom is (8 in)^2, or 64 in^2.

Thus, the total surface area is 80 in^2 + 64 in^2, or 144 in^2.

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2 years ago

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Captain Jessica has a ship, the H.M.S. Khan. The ship is two furlongs from the dread pirate Luis and his merciless band of thiev

erik [133]

Answer: Probability that both the pirate and the Captain hit each other's ships is $\frac{1}{9}$

Step-by-step explanation:

since we have given that

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Probability that the pirate hits the Captains's ship is given by

$\frac{1}{4}$

So, we have to find the "Probability that both the pirate and the Captain hit each other's ship" is given by

$P(\text{Captain hits})\times P(\text{ Pirates hit})\\\\=\frac{4}{9}\times \frac{1}{4}\\\\=\frac{1}{9}$

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2 years ago

Some pls help to give 20 points

madreJ [45]

Answer:

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Step-by-step explanation:

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3 years ago

Perform the indicated operation and write the answer in the form a + bi.<br> (3 +81) (4-3i)

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$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \: 36 + 23 i$

____________________________________

$\large \tt Solution \: :$

$\qquad \tt \rightarrow \: (3 + 8i)(4 - 3i)$

$\qquad \tt \rightarrow \: (3 \sdot 4)+ (3 \sdot - 3i) + (8i \sdot4) + (8i \sdot - 3i)$

$\qquad \tt \rightarrow \: 12 - 9i + 32i - (24 {i}^{2} )$

$\qquad \tt \rightarrow \: 12 + 23i -( 24 \sdot - 1)$

$\qquad \tt \rightarrow \: 12 + 23i + 24$

$\qquad \tt \rightarrow \: 36 + 23i$

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

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