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azamat
3 years ago
8

Find the surface area of the cone. Use 3.14 to approximate pi.

Mathematics
1 answer:
Ainat [17]3 years ago
5 0
Hope this would help you!!!
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Simplify this expression.<br> 2x/12(x + y)
Ymorist [56]

Answer: = 1 /6 x^2+ 1 /6 xy

Step-by-step explanation:

5 0
3 years ago
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The prime factors of a composite number must be less than a square root of the composite number. True or False?
Oksi-84 [34.3K]

Answer: It depends on what you're asking. If it can be equal, then yes. If it must be less, then no.

Step-by-step explanation:

Every composite number has a square root equal or less than its square root.

7 0
3 years ago
Can someone help me? Thanks!
scZoUnD [109]
3 to the -3 power.. ...
7 0
3 years ago
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Need help asap with work​
Dominik [7]

Answer:

f(n)=2+4n

Step-by-step explanation:

when they are combined, there are two taken away, so we can just say that there are two added in total, and the number of grey hexagons is n, and it would be 4n because there are 2 taken away like i said earlier if that makes sense :)

6 0
3 years ago
The length of a rectangle is 4ft less than twice its width. The perimeter of the rectangle is 256 ft. Find the length and width
Olin [163]
For problems like this, change the wording into simple algebraic formulas. We know that the area of a rectangle is its width times its length, or A=LW. The problem tells you that the area is 48, so LW=48. Also, if the length = twice the width minus 4, then L=2W-4.

From here, substitute your new L value for the L in the first equation:
48=LW --> 48=(2W-4)W

Now solve this equation by factoring it out into a polynomial:
48=2W^2-4W --> 24=W^2-2W --> W^2-2W-24=0 --> (W+4)(W-6)=0. Solving this equation gives us W values of 6 and -4, but since the width of a rectangle cannot be negative, the width must be 6.

Since L=2W-4, then L=2(6)-4 --> L=12-4 = 8. Therefore, the dimensions are 6X8, or 6 feet by 8 feet.

To check our work: The length equals four feet less than twice the width: 8=2(6)-4 --> 8=12-4 --> 8=8. This checks out.

Also, the area is 48 ft^2, and (6)(8) = 48, so this also checks out.

Hopefully this helps. If you need any more help or if I went over something too quickly, just let me know.
5 0
3 years ago
Read 2 more answers
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