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never [62]
3 years ago
9

Given a right cylinder where h is the height, and r is the radius, what does the expression 2rh represent?

Mathematics
2 answers:
Zepler [3.9K]3 years ago
5 0
2rh would represent the area of the rectangle that is created if you cut the cylinder in half vertically.  2r would be the distance across circular part of the cylinder (width) and the height would be the length of the rectangle.
Ostrovityanka [42]3 years ago
4 0

The answer to this question is lateral area.


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Does anyone know 8-10?
Anon25 [30]
#8).
The volume of a cone is      (1/3) (pi) (radius of the round end)² (height)

That's the volume of the ice cream cone alone.

The volume of a sphere is    (4/3) (pi) (radius)³

The glob of ice cream on top is 1/2 of a sphere.
The sphere and the cone in this problem both have the same radius.

#9).
The volume of a cylinder is        (pi) (radius of the round end)² (height)

#10).
Another cylinder !
The volume of a cylinder is        (pi) (radius of the round end)² (height)


8 0
3 years ago
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Danielle wants to purchase some clothes. He has $75. He buys one leather jacket for $39 and 3 pairs of socks. Each pair of socks
butalik [34]

$12 each. $75 - $39 = $36. $36 divided by 3 = $12. Assuming he used all his money.


8 0
3 years ago
Determine whether −2 is a zero (root) of the function:
lianna [129]

Answer:

The answer to your question is No

Step-by-step explanation:

Data

function f(x) = 2x³ + x² - 10x - 12

To know if a number is a root of a function, evaluate the function on that number, if the result is zero, then that number is a root.

Substitution          

               f(-2) = 2(-2)³ + (-2)² - 10(-2) - 12

Simplification          

               f(-2) = 2(-8) + 4 + 20 - 12

               f(-2) = -16 + 4 + 20 - 12

               f(-2) = -28 + 24

               f(-2) = -4

-2 is not a root that the function.

5 0
3 years ago
Read 2 more answers
Simplify<br> Square root of 224
Mariulka [41]
\sqrt{224} = \sqrt{16 \times 14} = \sqrt{16}  \times  \sqrt{14} =4 \sqrt{14}
8 0
3 years ago
A family eats at a restaurant. The bill is $42. The family leaves a tip and spends $49.77.
jeka94

Answer;

7.77

Step-by-step explanation:

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2 years ago
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