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borishaifa [10]
3 years ago
7

02:32:00

Mathematics
1 answer:
german3 years ago
7 0

The volume is given by

V=\pi hr^2

Since the height is 3 times the radius of the base, we can substitute h=3r:

V=\pi (3r)r^2=3\pi r^3

And we know that the volume is 24\pi (I'm actually assuming that there's a typo in the question, otherwise the options wouldn't match):

24\pi=3\pi r^3 \iff r^3=8 \iff r=2

The height is 3 times the radius, so it is

h=2\cdot 3 = 6

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What is the distance between points (-2, 8) and (6, -2)? Round to the nearest tenth of a unit.
Mama L [17]
So you will have to find the difference between each number so 6--2=8 
and 8--2=10. So then I'm guessing you have to round 8 to 10. Sorry if this isn't all correct.
4 0
3 years ago
Suppose your grandparents put $500 into an investment that earns 12% interest each year. How much, to the nearest cent, will be
SashulF [63]

Answer

After the 10 years with accrued interest, there will be roughly $1,552.92 in the account.

Explanation

Using the given equation A = P(1 +r)^t

We are given that our initial start is $500.

P = 500

We are further told that the percentage interest gained is 12%, so we need to convert this into a decimal to be able to work with it.

12% / 100% = 0.12

r = 0.12

t is then our time in years

t = 10

A = 500(1 + 0.12)^10

A = 500(1.12)^10

A = 500(3.1058)

A = 1,552.92

After the 10 years with accrued interest, there will be roughly $1,552.92 in the account.


3 0
2 years ago
The taxi ride costs $3.00 plus
sleet_krkn [62]

Answer:

$7

because theres 4 quarters in a mile so one mile would equal to $2  bc

0.50 x 4 = $2

and you have to go 2 miles so

$2 + $2 = $4

then you add the the cost of the taxi so

$4+ $3

= $7

3 0
2 years ago
0.9(x+1.4)−2.3+0.1x=1.6
IgorC [24]

so what you do is  distribute the 0.9 to x and 1.4 to get 0.9x+1.26 then combine like terms 1.9x - 1.04= 1.6 then add 1.04 to both sides to get 1.9x = 2.64 divide 1.9 to both sides


answer:1.389 and if you round 1.39

6 0
3 years ago
If g(x)=4x^2-3x+2 find g(-2)
Sholpan [36]

Answer:

24

Step-by-step explanation:

g(x)=4x^2-3x+2=0

if g= -2

g(-2)=4(-2)^2-3(-2)+2=0

=16+6+2

=24

4 0
3 years ago
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