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Alisiya [41]
2 years ago
12

Please help me answer these 2 questions for my math class <3 thanks if you do

Mathematics
1 answer:
anastassius [24]2 years ago
3 0

Answer:

I definitely believe B) 5,040 is correct

As for the second, I also believe D) 200 is the answer :)

(Sorry, I had to edit, but the real answer is 200-- I apologize, I did the problem wrong)

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See the picture below
svetlana [45]

Answer:

a) 204.20 square centimeters

b) 282.74 square centimeters

c) 314.16 cubic centimeters

Step-by-step explanation:

a)

The curved surface area of a cone is given by:

Curved Surface Area of Cone =  \pi rl

Where r is the radius (given as 5) and l is the slant height, the hypotenuse of the right triangle formed (right side) with 5 as base and 12 as height.

We can find the slant height by using pythagorean theorem on the triangle:

12^2 + 5 ^2 = l^2

144 + 25 = l^2

169 = l^2

l = 13

Now,

Curved Surface Area of Cone = \pi rl=\pi (5)(13) = 204.20 square centimeters

b)

Total surface area is curved surface area PLUS the area of the bottom, which is a circle with area  \pi r^2

So the bottom has an area of  \pi r^2 = \pi (5)^2 = 78.54

Hence, The total surface area = 204.20 + 78.54 = 282.74 square centimeters

c)

The volume of cone is given by  \frac{1}{3}\pi r^2 h

Where radius is 5 and height is 12, so we have:

Volume of Cone = \frac{1}{3}\pi r^2 h = \frac{1}{3}\pi (5)^2 (12) = 314.16 cubic centimeters

6 0
3 years ago
1 Which equation is correct for cosignfon<br>​
Yakvenalex [24]

Answer:

hnjajka

Step-by-step explanation:

wlbhnaewbbu

3 0
2 years ago
Thang decided to borrow ​$3000 from his local bank to help pay for a car. His loan was for 3 years at a simple interest rate of
Naya [18.7K]

Answer:

$450

Step-by-step explanation:

x/3000 = 5/100 (Cross multiply)

100x = 3000(5)

100x = 15000

100x/100 = 15000/100

x = 150

150(3) = 450

3 0
3 years ago
What is the range of function g if g(x) =-2f(x-3)
chubhunter [2.5K]

Answer:

If you entered the function correctly there is not a range  

Step-by-step explanation:

4 0
2 years ago
Simplify. Assume that a is a positive integer and a&gt;2. (a-2)!/a!
Paul [167]

Answer:

C. 1 / (a(a - 1))

Step-by-step explanation:

View Image

Just know that:

n! = n(n-1)!

   = n(n-1)(n-2)!

   = n(n-1)(n-2)(n-3)!

   = ...

8 0
3 years ago
Read 2 more answers
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