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lesya [120]
3 years ago
8

Round 481 to the nearest tens place?

Mathematics
1 answer:
nydimaria [60]3 years ago
4 0

480.

There is 1 before 8. And 1 is below not 5 or more in order to round up to 490. So, the only choice is to stay at 480. Therefore, the answer is 480.

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A cylinder has radius 2.5 cm and lateral area 20 pi cm^2. What is the surface area of the cylinder in terms of pi?
Novosadov [1.4K]
This is the concept of areas of solid materials; the surface area of the cylinder whose radius is 2.5 cm and lateral area is 20 pi cm^2 will be: Surface area of cylinder is given by:
SA=(area of cyclic sides)+(lateral area)
SA=2πr^2+πrl
Area of the cyclic sides will be:
Area=2πr^2
=2*π*2.5^2
=12.5π cm^2
The lateral area is given by:
Area=20π cm^2
Therefore the surface area of cylinder will be:
SA=(12.5π+20π) cm^2
SA=32.5π cm^2
The answer is 32.5π cm^2

4 0
3 years ago
A recipe for nut bread calls for 1/3 cup of walnuts and 2/6 cup of pecans. What is the total amount of walnuts and pecans needed
tiny-mole [99]

Answer: 2/3 cups

Step-by-step explanation:

6 0
2 years ago
Y = 6x + 11<br> 2х - Зу = 7
irakobra [83]

9514 1404 393

Answer:

  (x, y) = (-2.5, -4)

Step-by-step explanation:

Since you are given an expression for y, it is convenient to substitute that into the second equation.

  2x -3(6x +11) = 7

  2x -18x -33 = 7

  -16x = 40 . . . . . . add 33

  x = -40/16 = -2.5

Using the equation for y, we find ...

  y = 6(-2.5) +11 = -15 +11 = -4

The solution is (x, y) = (-2.5, -4).

8 0
3 years ago
Graph each number in a number line
Katarina [22]

Answer:

Graph it???

Step-by-step explanation:

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3 years ago
What is the simplest radical form of the square root of 49 ?
Anarel [89]
As 7•7=49 it follows that 7 is the square root of 49
6 0
3 years ago
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