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KiRa [710]
2 years ago
6

Work out the surface area of this cylinder. Radius-7 cm Height-12 cm

Mathematics
2 answers:
ELEN [110]2 years ago
5 0

Answer:

The surface area of this cylinder. is <em><u>266π  cm²</u></em>

Step-by-step explanation:

Surface Area of Cylinder (SA) = 2πrh+2πr²

       since r =  7cm  & h = 12 cm

Then SA  = 2 π (7)(12) + 2π(7²)

         SA  = 168π  +  98π

     ∴  SA  = 266π  cm²

           

                   

RideAnS [48]2 years ago
4 0

Answer:

226pi

Step-by-step explanation:

2 * pi * 7 *(7+12)

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Find the original price of a pair of shoes if the sale price is $40 after a 60% discount
Arturiano [62]

Answer:

<em>Thus, the original price of the pair of shoes was $100.</em>

Step-by-step explanation:

<u>Percentages</u>

After a 60% discount, the sale price is now valued at 100-60=40% of its original price.

If the sale price is $40, then the original price is calculated as

$40 / 40 * 100 = $100

Thus, the original price of the pair of shoes was $100.

Verify applying 60% discount:

$100 - 60*$100/100 =  $40

3 0
3 years ago
BRAINLEISET!!!!!!!!! pls
zvonat [6]

Answer:

18 cups of dried split peas. 16 quarts of water. 6 cups of chopped onions. 8 cups chopped celery. 16 pounds ham shank.

Step-by-step explanation:

Since that is a recipe for 8 people and 8 is a factor of 32, we can multiply the ingredient amounts by 4 (4 x 8 is 32).

2 1/4 c x 8 = 18 c.

2 qt x 8 = 16 qt.

3/4 c x 8 = 6 c.

1 c x 8 = 8 c.

2 lb x 8 = 16 lb.

5 0
3 years ago
How many people must attend the third show so that the average attendance per show is 3000 write an equation too
Lubov Fominskaja [6]
3500 people in the third show

5 0
3 years ago
Read 2 more answers
Line segment GT contains the point G(−3, 5) and a midpoint at A(1, −4). What is the location of endpoint T?
algol [13]

Imagine you're moving along the segment. Since the midpoint is in the middle of the segment (obviously), it means that when you've traveled from G to A, you're halfway through your journey, along both x and y directions. So, let's break the problem in two and analyze both directions.


Along the x axis, you've moved from -3 to 1, so you moved 4 units forward. This means that you have 4 units still to go, and your journey will end at coordinate 5.


Similarly, along the y axis, you've moved from 5 to -4, so you moved 9 units downward. This means that you have 9 units still to go, and your journey will end at coordinate -13.


So, the coordinates of the endpoint are T = (5,-13)


If you prefer a more analyitical approach, simply write the definition of the midpoint and solve it for the coordinates of T.


We have G = (-3, 5) and T = (x_T,y_T). The midpoint is computed as


A = \left( \frac{-3+x_T}{2},\frac{5+y_T}{2} \right) = (1, -4)


So, you have the equations


\frac{-3+x_T}{2} = 1,\qquad \frac{5+y_T}{2} = -4


Multply both equations by 2 to get


-3+x_T = 2,\qquad 5+y_T = -8


Move the constants to the right hand sides to get


x_T = 5,\qquad y_T = -13

8 0
2 years ago
Find the sum of 997 + 992 + 987 +...+ 257 +252
Vikentia [17]

Answer:

  93,675

Step-by-step explanation:

We see that the given sequence is an arithmetic sequence with first term 997, common difference -5, and last term 252.

The number of terms in the sequence (n) can be found from the formula for the n-th term:

  an = a1 +d(n -1)

  (an -an)/d +1 = n

  (252 -997)/(-5) +1 = n = 150

The sum of these terms is the average of the first and last terms, multiplied by the number of terms:

  S150 = (997 +252)/2·150 = 93,675

The sequence sum is 93,675.

7 0
3 years ago
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