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grin007 [14]
3 years ago
5

73 POINTS need help

Mathematics
1 answer:
emmainna [20.7K]3 years ago
5 0

Answer:

2304.8 ft^2

Step-by-step explanation:

The lateral area of one of the pyramid is 21.5 * 13.4 * 4/2 = 576.2

There are 4 of them, so we multiply that by 4 : 576.2 * 4 = 2304.8

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Two brothers build a pyramid-shaped fort. If the fort is 8 feet wide at its base, what expression could be used to calculate the
melisa1 [442]
Answer: An expression for the height is: H = (3/64)V

To start with, we will assume that it is a square pyramid, meaning all the sides of the base are 8 feet wide.

Now, we need the formula for the volume of a square pyramid.

V = BH/3

We know the area of the base, it is 8 x 8 = 64, so we can input that.

V = 64H/3   We can multiply by 3/64 to find an expression for the height of the fort.

(3/64)V = H
5 0
3 years ago
Read 2 more answers
Picture of raadius is 10 cm​
ss7ja [257]

Step-by-step explanation:

And,what is the question so that i can help u??

6 0
3 years ago
ben is filling up his cylinder shaped pool up to 80% of its capacity . If his is 6 feet deep and has a diameter of 18 feet, how
vlada-n [284]

Answer:

You will put 1220.83ft³ of water in the pool

Step-by-step explanation:

radius = half of diameter

d = 18ft

r = 18ft / 2 = 9ft

To calculate the volume of a cylinder we have to use the following formula:

v = volume

h = height = 6ft

π = 3.14

r = radius = 9ft

v = (π * r²) * h

we replace with the known values

v = (3.14 * (9ft)²) * 6ft

v = (3.14 * 81ft²) * 6ft

v = 254.34ft² * 6ft

v = 1526.04ft³

The volume of the cylinder is 1526.04ft³

If it is filled to 80% then we have to multiply the volume by 80/100

1526.04ft³  * 80/100 = 1220.83ft³

You will put 1220.83ft³ of water in the pool

5 0
3 years ago
Round 1.495485 to the nearest thousandth
viva [34]
Answer: 1.495

Explanation: The first digit after the decimal is the tenths place. After that it's the hundredths then the thousandths. If the digit after the thousandths place is 5 or higher then you would round the thousandths place up. Considering it's not higher then it would stay the same.
8 0
3 years ago
Look at the pattern: 2, 20, 200, _________, ________. What are the next two terms in the pattern?
enyata [817]

Answer:

2,000 then 20,000

Step-by-step explanation:

each time it is being multiplied by 10( just adding a zero)

6 0
3 years ago
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