2 years ago

PLEASE HELP ASAPPPPP

Mathematics

1 answer:

sveticcg [70]2 years ago

4 0

Answer:

506.7 cm²

Step-by-step explanation:

The amount of cardboard needed would be the surface area of the cone,

S= pi(r)(l+r) where r is the radius and l is the slant height.

You can find l using the Pythagorean theorem. l²=r²+h² which is l²=6²+20² and you get l = √436.

Plug r and l into the equation: S = 6pi(√436 + 6) = 506.7 cm²

Let me know if you have any questions about my steps!

You might be interested in

Find the LCM of 98 and 182.

LUCKY_DIMON [66]

Answer:

LCM = 1274

Step-by-step explanation:

98 = 2 × 7²

182 = 2 × 7 × 13

LCM(98 ; 182) = 2 × 72 × 13 = 1274

5 0

3 years ago

PLEASE HELPPP!!!! y = 2/5x + 2

Snezhnost [94]

Answer:

Your answer is y.

Step-by-step explanation:

You start graphing by plotting the 2 and the you go two points up and 5 to the right.

6 0

3 years ago

Last week, carlie had several rice cakes and 3 gronola bars as snacks. The snacks contained a total of 800 calories. If each gra

Alex_Xolod [135]

Charlie must have had 11 rice cakes

You multiply 120 times 3 to get 360

then 800- 360 = 440

440 divided my 40 = 11

5 0

4 years ago

Sam has 12 black and white photos and 18 color photos. He wants to put the photos in equal rows so each row has either black and

elena-s [515]

12 black and white, 18 color in one row
6 black and white, 9 color in two rows
4 black and white, 6 color in three rows
2 black and white, 3 color in six rows

8 0

3 years ago

Read 2 more answers

8a - 7b + 2a - 4b Please include the steps on how to solve it.

Troyanec [42]

Answer:

10a-11b is ur answer

Step-by-step explanation:

combine like terms

8a+2a=10a

-7b-4b=-11b

(always make sure to but in alphabetic order)

10a-11b

hope this helps

6 0

3 years ago