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melamori03 [73]
3 years ago
5

Find the surface area of the pyramid

Mathematics
1 answer:
Tcecarenko [31]3 years ago
6 0

Answer:

2100

Step-by-step explanation:

Surface area is the area of all the sides

The area of the rectangular base is W x L =  30 x 30 = 900

Then to find the area of the triangles its \frac{1}{2}bh

A = \frac{1}{2} 30 x 20

A = \frac{1}{2} 600

A = 300

Since there are 4 triangle faces on a pyramid we times 300 x 4 = 1200 is the area of all the triangles

Then we add the area's

1200 + 900 = 2100

Sorry if its wrong

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If a1 = 6 and an = 3 + 2(an-1), then a2 equals<br><br> no links
Salsk061 [2.6K]

Answer:

15

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an =  3 + 2(an-1),

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Round 4.645 to the nearest whole number! Please explain step by step to get marked
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Step-by-step explanation:

to round 4.645 to the nearest whole number consider the tenths’ value of 4.645, which is 6 and equal or more than 5. Therefore, we have to round up: the whole number part of 4.645, 4, increases by 1 to 5, and the decimal point and all digits (.645) are removed.

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Color blindness is an inherited characteristic that is more common in males than females. Let F represent female, and C represen
malfutka [58]

Answer:

0.513 = 51.3% probability of being a female.

Step-by-step explanation:

We are given the following formula:

P(F \cup C) = P(F) + P(C) - P(F \cap C)

In which:

Event F: Female

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Probability of a Female

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0.513 = 51.3% probability of being a female.

5 0
3 years ago
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