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jeyben [28]
3 years ago
9

What is the lateral area of a right cylinder if the radius of the base is 12 mm and the altitude of the cylinder is 5 times the

base radius? Round your answer to the nearest whole number.
A. 2715 mm2
B. 905 mm2
C. 3167 mm2
D. 4524 mm2
Mathematics
1 answer:
lakkis [162]3 years ago
5 0
The lateral area of a cylinder is given by:
Area=πrl+2πr^2
radius,r=12 mm
length,l=5*12=60mm
therefore the lateral area will be:
Area=π*12*60
Area=2,261.95 mm^2
The area of the bases will be:
A=2*π*12^2=904.78 mm^s
The lateral area will be:
2,261.95+904.78
=3,166.73
=3167 mm^2
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A rectangular garden that measures 6 feet by 8 feet is roped off to form a
Feliz [49]

Answer:

10feet

Step-by-step explanation:

We solve this question, using Pythagoras Theorem to solve for the other side.

Pythagoras Theorem states that

c² = a² + b²

c = √(a² + b²)

In the question, a = 6 feet

b = 8 feet

c = length of the rope

c = √6² + 8²

c = √36 + 64

c = √100

c = 10 feet

The length of the rope is 10 feet

8 0
3 years ago
Jerome's rain gauge showed 13 9/10 centimeters at the end of last month. At the end of this month, the rain gauge showed 15 3/10
nexus9112 [7]
<span>Jerome’s rain gauge shows that there’s 13 9/10 centimeter at the end of last month.
=> for the end of this month, it shows 15 3/10 centimeters.
The question is, how manu centimeter of rain added for this month according to Jerome’s gauge.
=> 15 3/10 cm (this month’s rain measurement)
=> 13 9/10 cm (last month’s rain measurement)
Subtract both numbers.
=> 15 3/10 – 13 9/10
=> convert this first to improper fraction
=> 153/10 – 139/10
=> 14/10
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</span>



3 0
3 years ago
Read 2 more answers
Use the properties of logarithms to expand the following expression.log(z3)/√x5y)Each logarithm should involve only one variable
jek_recluse [69]

Answer:

3 log (z) -  1/2log (x) - 1/2 log (5) -1/2 log y

Step-by-step explanation:

log(z3)/√x5y)

= log (z3)   - log (√x5y)   [division being subtracted]

= 3 log (z) - {log (√x) + log (√5y)}    [ multiplication being added in the denominator]

= 3 log (z) - {log (x)^1/2 + log (5)^1/2+ log (y)^1/2}  

= 3 log (z) -  1/2{log (x) + log (5)+ log y }

 We can solve inside the curly bracket and then multiply with 1/2 or we can solve it separately

= 3 log (z) -  1/2log (x) - 1/2 log (5) -1/2 log y

How does this work?

1) any two terms being multiplied in logarithms are added with the log of each.

2) the exponent becomes the co- efficient.

3)  any two terms being divided in logarithms are subtracted with the log of each

8 0
3 years ago
If a number n is subtracted from 15,you get three more than n.What is the value of n?
saul85 [17]
I think the answer is 15

6 0
3 years ago
A line with a slope of – 5 passes through the points (6,r) and (7, – 9). What is the value of r?
const2013 [10]

Answer:

r=-4

Step-by-step explanation:

gradient =  \frac{change \: in \: y}{change \: in \: x}  \\  - 5 =  \frac{r -  - 9}{6 - 7}  \\  - 5 =  \frac{r + 9}{ - 1}   \\  - 5 \times  - 1 = r + 9 \\ 5 = r + 9 \\ 5 - 9 = r \\ r =  - 4

Hope that this is helpful.

8 0
2 years ago
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