Please help me with this explain!!!!!

Answers

Answer 1

Answer: Given:
Cylinder: radius = 8 yd; height = 4 yd
Surface Area = 2 π r h + 2 π r²
SA = 2 * 3.14 * 8 yd * 4yd + 2 * 3.14 * (8yd)²
SA = 200.96 yd² + 401.92 yd²
SA = 602.88 yd²
Volume = π r² h
V = 3.14 * (8yd)² * 4yd
V = 803.84 yd³

Dimension is cut in half. radius = 4yds ; height = 2yds
S.A = 2 * 3.14 * 4yd * 2yd + 2 * 3.14 * (4yd)²
S.A = 50.24 yd² + 100.48 yd²
SA = 150.72 yd²
V = 3.14 * (4yd)² * 2yd
V = 100.48 yd³

SA = 602.88 yd² - 150.72yd² = 452.16 yd²
V = 803.84 yd³ - 100.48 yd³ = 703.36 yd³

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What is the equation of the line of symmetry for g(x) = 5x2 – 10x + 24? x = _________
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Increase 220 by 15% please

Answers

Lets do this step by step.

1st.) what is 15% as a decimal
15% = 0.15

2nd.) multiply
220 x 0.15 = 33

3rd) we add that 33 and 220 since this its asking for the increase
220 + 33 = 253

Answer = 253

Lions spend 5/ 6 of their day sleeping how many hours a day do lion sleep

Answers

24 hours in a day.

5/6 times 24/1

24*5 = 120
6*1 = 6

120/6 = 20 hours per day

Question I’m ten and I’m homeschooled I don’t know what grade I’m supposed to be in so I was wondering if you knew?

Answers

ummmm you should maybe ask your mom or dad

Answer:

If you want you can join my zoom meeting so you can explain better?

i would be happy to help!

Step-by-step explanation:

Andy cut rope for an activity at outdoor camp. He had 504 centimeters of rope to cut into equal-length pieces. How many of the ways given below would use the entire amount of rope? Circle all that apply. A. 12 pieces of 42.3 centimeter long rope B. 15 pieces of 33.6 centimeter long rope C. 16 pieces of 31.5 centimeter long rope D. 20 pieces of 25 centimeter long rope E. 35 pieces of 14.4 centimeter long rope

Answers

Answer: B, C, E

Step-by-step explanation:

For us to know if the options are correct, we just have to multiply the length the rope was cut into by the number of pieces and check if it equals 504 centimeter.

A. 12 pieces of 42.3 centimeter long rope.

= 12 × 42.3

= 507.6

This is wrong

B. 15 pieces of 33.6 centimeter long rope

= 15 × 33.6

= 504cm

This is correct

C. 16 pieces of 31.5 centimeter long rope

= 16 × 31.5

= 504cm

This is correct

D. 20 pieces of 25 centimeter long rope

= 20 × 25

= 500cm

This is incorrect

E. 35 pieces of 14.4 centimeter long rope

= 35 × 14.4

= 504cm

This is correct

Therefore, the correct option are B, C and E.

-3+4(2X-5)=2(3X-1)+2X

Answers

$-3+4(2x-5)=2(3x-1)+2x\n-3+8x-20=6x-2+2x\n8x-6x-2x=-2+3+20\n0=21\nx\in\emptyset$

Help me please. I don't understand this section

Answers

What you do is that you use your algebraic magic to find your c value. First, you will divide both sides by 5. Now you have 2b= the square root of c +2. Now subtract 2 from both sides and you will have 2b-2= the square root of c. To undo the square root of c, you will need to square it, so square both sides and you have your answer. Good luck!

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