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scoundrel [369]
3 years ago
6

Derek is planning on covering an entire drum in leather. The diameter of the drum is 10 inches, and the height of the drum is 16

inches. What is the minimum amount of leather that Derek will need to cover the drum?
Mathematics
1 answer:
fredd [130]3 years ago
5 0

Answer: 694.4 in^2

Step-by-step explanation:

We have a cylinder with:

diameter = d = 10 inches

heigth = h = 16 inches.

The total surface of a cylinder is equal to:

S = h*2*pi*(d/2) + 2*pi*(d/2)^2

we can replace the numbers and get:

S = 16*2*3.14*(10/2) + 2*3.14*(10/2)^2 = 659.4 inches squared

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Write the equation of the following graph in vertex form.
Marat540 [252]

Answer:

Correct choice is 2. f(x)=0.4(x+2)(x-5)

Step-by-step explanation:

We have been given a graph of the quadratic function. Now we need to use that graph to find the equation of the graph in vertex form. By the way given choices written in intercept form so to be accurate we are going to find the equation in intercept form.

from graph we see that x-intercepts are at 5 and -2.

we know that if x=a is x-intercept then (x-a) must be factor.

So (x+2)(x-5) is the factor.

when leading coefficient is positive then graph opens upward.

so that means leading coefficient is 0.4

Hence correct choice is 2. f(x)=0.4(x+2)(x-5)

6 0
3 years ago
Please help me it’s due in 1 hour
kherson [118]

Answer:

There were 39 children at the party

Step-by-step explanation:

Here, we want to know the number of children at the party

To do this, we have to add the y-values ( frequencies of the age grades)

We have this as;

8 + 8 + 7 +10 + 6 = 39

7 0
3 years ago
What is the equivalent expression of 3p+12m+8
seropon [69]

Q.What is the equivalent expression of 3p+12m+8

A.12m+3p+8

Hope this helps:)

6 0
3 years ago
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Cho hình thang ABCD vuông tại A và D biết AB=AD=3cm, BC=6cm. Tính góc C và D
Zanzabum

Answer:

C=6cm

D=3cm

Step-by-step explanation:

C=6×6cm

36cm

D=3×3cm

=9cm

5 0
2 years ago
What is a number that represents part of a whole or part of a set
ira [324]
A fraction. Thats the answer ;)
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3 years ago
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