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BlackZzzverrR [31]
3 years ago
6

Math question, any help is appreciated! :)

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
4 0
E and B are your answers to this
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WILL MARK BRAINLIEST
antoniya [11.8K]

Answer:

819.54 cm^2

Step-by-step explanation:

We are given

Slant height = l = 20cm

and

Diameter = d = 18 cm

We have to find radius first

r = d/2 = 18/2 = 9 cm

The formula for surface area is:

SA = \pi rl+\pi r^2\\= (3.14 * 9 * 20) + (3.14 * (9)^2)\\=565.5+254.34\\=819.84\ cm^2

As second option is nearest to calculated answer, it is the correct option ..

7 0
3 years ago
Read 2 more answers
If a piece of ribbon is 5 and 1 over 2. Feet long, how long is it in inches? 33 inches 55 inches 60 inches 66 inches
galben [10]

Answer:The answeris 66 inches.


Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
What are the last 2 digits of 7 to the power of 2018. This question was on a past exam paper.
Xelga [282]

Answer:

49

Step-by-step explanation:

  • Try finding pattern of last two digits of 7 to the power of some numbers.

7^1=07

7^2=49

7^3=343

7^4= 2301

7^5= 16807

  • so , the pattern is, 07,49,43,01
  • so, if we start writing all numbers from 1 to 2018 , four number in each line, 2018 will fall in the second column.
  • so it will have 49 as the  last 2 digits [by seeing this pattern : 07,49,43,01 ]
6 0
3 years ago
What is the y-value for f(x) = cos(x) when x = 180°?<br> -1<br> 0<br> 1/2<br> 1
maksim [4K]
You start at 0 on the unit circle the cos of 0 =1, but at cos 0 there is no angle at all so there is no y value so at cos 0 y=0, 180 is the opposite direction of the starting point which is 0 so the x value of cos180= -1 but there is still no upward or downward angle ie.. y value. so the y value = 0 at 0 and 180. answer is 0
8 0
3 years ago
Equation of slope 4, through (7,2)
Crazy boy [7]
Y - y₁ = m(x - x₁)
 y - 2 = 4(x - 7)
 y - 2 = 4(x) - 4(7)
 y - 2 = 4x - 28
   + 2          + 2
      y = 4x - 26
5 0
3 years ago
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