3 years ago

A cube has a length, width and height of 6 feet. What is the volume in cubic INCHES?

Mathematics

1 answer:

rodikova [14]3 years ago

6 0

Volume of cube = ( side)^3

Side = 6 feet = 6×12 = 72 inches ( 1ft =12 inch)

Vol. = (72)^3 = 72×72×72= 373248 cubic inches

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Mistery number . CLUES: -it has the digits 8,5 and 6 . - it is a odd number . - it has 8 in the hundreds place . WHAT IS THE MIS

Ipatiy [6.2K]

With digits 8, 5, and 6, an odd number must end in 5.
So far, we have _ _ 5.
The 8 is in the hundreds place.
Now we have 8_5.
The only place left for the 6 is the tens place.
The number is 865.

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3 years ago

How many whole numbers are there, whose squares and cubes have the same number of digits?

Naddik [55]

Answer:

there are only 4 whole numbers whose squares and cubes have the same number of digits.

Explanations:

let 0, 1, 2 and 4∈W (where W is a whole number), then

$0^2=0$ , $0^3=0$ ,

$1^2=1$ , $1^3=1$ ,

$2^2=4$ , $2^3=8$ ,

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sergiy2304 [10]

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2 years ago

If y varies directly with x, write an equation for the direct variation. Then find each value.

Viktor [21]

1)
y = kx
-12 = k(9)
k = -4/3

y = (-4/3)(-4)
y = 16/3

2)
y = kx
8 = 20k
k = 2/5

y = (2/5)(10)
y = 4

3)
y= kx
-6 = k(-14)
k = 3/7

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3 years ago

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Pavlova-9 [17]

$3\log_5(x^2+9)-6=0$
$3\log_5(x^2+9)=6$
$\log_5(x^2+9)=2$
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$x^2+9=25$
$x^2=16$
$x=\pm\sqrt{16}$
$x=\pm4$

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3 years ago