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docker41 [41]
3 years ago
9

The pyramid shown has a square base that is 18 inches on each side. It has a surface area of 864 square inches. What is the slan

t height
Mathematics
1 answer:
Volgvan3 years ago
8 0
The first step is to find the relationship between the square base and the surface area.

Surface area (SA) = area of the square (SS) + area of triangles.4(AT) 

Thus we can conclude area of triangles 4(AT) = SA - SS = 864 - (18*18)

4(AT) = 864 - 324 = 540

Each triangle = 540/4 = 135 square in.

An area of one triangle (AT)= (base* slant height)/2

The base = 18 in.

slant height = 2(AT)/base = 2(135)/18 = 15
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Help right away ASAP only right answers
kupik [55]

Answer:

- 20/21

Step-by-step explanation:

Calculate the product

5/6 x (-8/7)

Multiplying a positive and a negative equals a negative

(+)x(-)=(-)

-5/6 x 8/7

Reduce the number with the greatest common factor 2

-5/3 x 4/7

Multiply the fractions

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Solution

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Alternate form

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7 0
3 years ago
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How many ways can a dozen books be placed on four distinguishable shelves if no two books are the same, and the positions of the
Jet001 [13]

Answer:

217945728000 ways

Step-by-step explanation:

Given

Books = 12 --- 1 dozen

Shelf = 4

The given condition implies that;

Book\ 1  = 4 ---- any of the 4 shelves

Book\ 2  = 5 --- any of the 4 shelves and either ways of book 1

Book\ 3  = 6  --- any of the 4 shelves and either ways of book 1 and 2

-----------------------

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<h2>Book\ 12 = 15</h2><h2></h2>

So, the number of ways is:

Ways = 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 * 12 * 13 * 14 * 15

Ways = 217945728000

5 0
3 years ago
luke says you can always add and you can always multiply to join groups. is he correct? why or why not
Nataly_w [17]
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3 0
3 years ago
Read 2 more answers
Use Synthetic Division to divide (3x3 + x2 – 4) by (x + 2).
Kitty [74]
X - 2 + 9 OVER x + 2.
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4 0
3 years ago
Paul works at at the bucket of Cracker Barrel and makes $8.25 an hour plus tips. Paul averages $110 in tips during an 8 hour shi
MrRissso [65]

Answer:

330.00

Step-by-step explanation:

i think thats the answer someone would have to double check but this is what i did the get that

How much overtime pay do you get for working 40 hours if you get the following pay scale:

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110 for all hours in excess of 40

Calculate Total Pay

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Total Wages = 8.25 x 40 Hours + 110 x (40 - 40) Hours

Total Wages = 8.25 x 40 Hours + 110 x (0) Hours

Total Wages = 330 + 0

Total Wages = 330.00

3 0
2 years ago
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