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3 years ago

What is the total volume ?

Mathematics

1 answer:

Reil [10]3 years ago

3 0

The formula for the volume of a sphere is
V = (4/3)π*r^3
The radius is given as 6 in, so the volume of one pillow is
V = (4/3)π(6 in)^3 = 288π in^3
and the volume of two (2) of them will be
V = 2*(288π in^3) = 576π in^3
V ≈ 1810 in^3 . . . . . . . . . matches selection C

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Gala2k [10]

Answer: 5

Step-by-step explanation:

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2 years ago

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Setler79 [48]

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3 years ago

What quantity of 75 per cent acid solution must be mixed with a 30 per cent solution to produce 1080 mL of a 50 per cent solutio

Jlenok [28]

Answer: 480 mL, 600 mL

Step-by-step explanation:

Given

The concentration of the first acid is 75%

The concentration of the second acid is 30%

The final mixture has a concentration of 50%

The final volume is 1080 mL

Suppose x and y be the volume of the first and second acid

$\therefore x+y=1080\quad \ldots(i)\\0.75x+0.3y=0.5\times 1080\quad \ldots(ii)$

Solving the above equations we get

$x=480,y=600$

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6 0

2 years ago

The expression -7y is a a. term b. variable c. constant

Jet001 [13]

Answer:

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Step-by-step explanation:

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8 0

2 years ago

Read 2 more answers

Evaluate 0.53n + 5 when n= 3 and when n= -3

vampirchik [111]

Answer:

6.59 and 3.41

Step-by-step explanation:

To evaluate, substitute n for each of the given values.

So when n= 3:

0.53n + 5 = 1.59 + 5 = 6.59

And when n = -3

0.53 n + 5 = -1.59+5=3.41

Hope this helps

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3 years ago