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Harlamova29_29 [7]
3 years ago
11

Find the volume of the cylinder and cone, then add them together.

Mathematics
1 answer:
eduard3 years ago
5 0

nao sei oque e desculpa tchau

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Sam wants to buy 8 pencils and 6 pens, which cost a total of $8.50. He realizes he doesn't have enough cash and instead takes on
Diano4ka-milaya [45]
X = pencils, y = pens

8x + 6y = 8.50
4x + 4y = 5.....multiply by -2
----------------
8x + 6y = 8.50
-8x - 8y = -10 (result of multiplying by -2)
-----------------add
-2y = - 1.50
y = -1.50 / -2
y = 0.75 <=== pens cost 0.75

4x + 4y = 5
4x + 4(0.75) = 5
4x + 3 = 5
4x = 5 - 3
4x = 2
x = 2/4
x = 0.50 <== pencils cost 0.50
8 0
3 years ago
Please help will give brainliest if correct​
Taya2010 [7]

Answer:

the third option cannot be a function

Step-by-step explanation:

whenever a set or ordered pairs contains an x-value that appears more than once then it cannot form a function

8 0
3 years ago
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melamori03 [73]
The picture is blurry.
6 0
3 years ago
(HELP) Find the circumference of a circle with diameter,
Nikolay [14]

Answer:

69.08

Step-by-step explanation:

22x3.14(PI)=69.08

6 0
3 years ago
42=-2d+6 I need help
sineoko [7]
<span>42=-2d+6

Here, to find d, you need to separate it on one side.
First, subtract 6 from both sides.

42-6 = -2d + 6 - 6
36 = -2d

Now divide both sides by -2.

36/-2 = -2/-2d
-18 = d

The answer to this problem is -18, or d = -18.</span>
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3 years ago
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