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STALIN [3.7K]
3 years ago
5

HELP PLEASE................

Mathematics
2 answers:
grigory [225]3 years ago
8 0
The best choice would be 2πrh because the formula for the surface area of a cylinder is A = 2πrh + 2πr^2 but the circle bases are not included in the wrapper so you do not need the 2πr^2 part. 
DerKrebs [107]3 years ago
7 0
Its the first one because wen you do this it is a= pi x r^2 x h
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iris [78.8K]

Answer:

Look at the proof down

Step-by-step explanation:

The given is;

→ ∠1 and ∠2 form a linear pair

→ ∠1 ≅ ∠3

We want to prove;

→ ∠2 and ∠3 are supplementary

<em>We will write the proof in like a table</em>

1. ∠1 and ∠2 formed a linear pair  ⇒  1. Given

2. m∠1 + m∠2 = 180°  ⇒ 2. Sum of angles on a straight line

3. ∠1 and ∠2 are supplementary angles  ⇒  3. Supplementary angles add up to 180°

4. ∠1 ≅ ∠3  ⇒  4. Given

5. m∠2 + m∠3 = 180°  ⇒  5. Substitution method

6. ∠3 is a supplement of ∠2  ⇒  6. Supplement of equal angles

7. ∠2 and ∠3 are supplementary  ⇒  7. Proved

8 0
4 years ago
Simon goes into a cafe and buys 2 cups of coffee and a piece of cake.
Art [367]

Answer:

1.59 change

Step-by-step explanation:

2.78*2=5.56

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6 0
3 years ago
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One pound of peaches is $4.
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3 years ago
Amir stands on a balcony and throws a ball to his dog, who is at ground level.
Bumek [7]

Answer:

16 meters

Step-by-step explanation:

The height function is given by:

h(x)=-(x+1)(x-7)\\h(x)=-(x^2+x-7x-7)\\h(x)=-x^2+6x+7

The value of x, in seconds, for which the derivate of the height function is zero, is the time at which the maximum height occurs:

\frac{dh(x)}{dx}= h'(x)=-2x+6=0\\x=3

For x = 3 seconds, the height is:

h(3)=-(3^2)+6*3+7\\h(3)=16\ m

The maximum height that the ball will reach is 16 meters.

6 0
3 years ago
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If 25 Y - 80 is equal to minus 50 then the value of Y is
Murrr4er [49]

Answer:

Answer:25y=-50+80

25y=30

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Step-by-step explanation:

Step-by-step explanation:

4 0
4 years ago
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