What is the approximate volume of a cone with a height of 9 ft and radius of 3 ft?Use 3.14 to approximate pi, and express your final answer to the nearest tenth.
?? ft^3
Answers
area of base=area of circle=pi times r^2
r=3
aprox pi to 3.14
height=9
so we have
volume=1/3 times 9 times 3.14 times 3^2
3^2=9
1/3 times 9 times 3.14 times 9
3 times 3.14 time s9
9.42 times 9
84.78
nearest tenth
0.78=0.8
answer is 84.8 ft^3
Answer:wrong
Step-by-step explanation:
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Answers
In this case it is.
I = p r t (they are all multiplied by each other)
p = "principle" or the starting amount of money
r = the rate or percentage
t = time (in years)
So lets figure it out in the order they give it to us. Then Put them least to greatest.
So the first one is
Investment at $3,000 at 16% simple interest for 2 years.
We multiply them all together to get our interest.
lets do the math:)
16% = 0.16
$3,000 x 0.16 x 2 = $960
Now lets do the second one.
Investment of $3,000 at 5% simple interest for 20 years.
Lets multiply them all together.
5% = 0.05
$3,000 x 0.05 x 20 = $3,000
Now for our third one.
Investment of $1,000 at 16% simple interest for 20 years
Lets multiply them together.
16% = 0.16
$1,000 x 0.16 x 20 = $3,200
Now here is our answer ↓↓↓
Now to put these in order from least to greatest.
1st.) Investment at $3,000 at 16% simple interest for 2 years. = $960
2nd.) Investment of $3,000 at 5% simple interest for 20 years.= $3,000
3rd.)Investment of $1,000 at 16% simple interest for 20 years.= $3,200
Answers
\60.369 v v v v v
V= a x a x a verses the Volume of a box which equals
lenght x height x width
Now we take the 3rd root of 68.921 by 3✔ ️because all sides are equal on a cube. We have 4.10 ft.
Check:
4.10 ft x 4.10 ft =
16.81 ft^2
16.81 ft^2 x 4.10 ft = 68.921 ft^3
Answers
#4(a)
row-seat: 3- 13, 4-15, 5-17, 6-19, 7-21
(b)
the equation works for row 1 but not for any of the rows after this
Ex: Row 2, S=7(2)+2, this would equal 14 but there isn't 14 seats in row #2
(c)
S=2(1)+7, there is 9 seats in row 1
2(2)+7=11, there is 11 seats in row 2
2(3)+7= 13, there is 13 seats in row 3
(d)
2(15)+7=37
2*15=30, 30+7=37
(e)
91=2(r)+7
91-7=2(r)+7-7
84=2(r)
84/2=2(r)/2
42=r, the row with 91 seats is row 42
B. 1 2/3
C. 2 1/3
D. 2 2/3
Answers
Answer:
Option B.
Step-by-step explanation:
Sally takes time to clean the house = 5 hours
If Sally and her two friends do the job at the same rate,
The time for the same work done by 3 people = time taken by one / number of people
=
=
It will take hours to clean the house by 3 people.
5 hours / 3 people = 5/3 = 1 2/3
The answer is B
5(1 + 3g)
Answers
5(1) + 5 (3g)
5 + 15g
5÷15 = 15÷15g
g=.3333 or 1/3
Answers
We have b - 12 = 15 or b - 12 = - 15;
Then b = 12 + 15 or b = 12 - 15;
Finally, b = 27 or b = -3;
The solutions are 27; -3.
Absolute value has a positive and neg. Answer
B-12=15
B= 15+12
B= 27
Now the negative
B-12=-15
B=-15+12
B= -3
Answer is
B= 27,-3