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Otrada [13]
3 years ago
12

A cylindrical tube 9.5 cm high and 0.85 cm in diameter is used to collect blood samples. How many cubic decimeters (dmଷ ) of blo

od can it hold (V = πrଶh)?
Mathematics
1 answer:
Brums [2.3K]3 years ago
4 0

Answer: 0.539 cubic decimeters of blood can be hold by the cylinder.

Step-by-step explanation:

Volume of cylinder= volume of blood it can hold = \pir^2h

Given :

Height of cylinder (h) = 9.5 cm

Diameter of cylinder (d) = 0.85 cm

Thus radius of cylinder (r) = \frac{\text {Diameter of cylinder}}{2}=\frac{0.85cm}{2}=0.425cm

Putting the values we get:

Volume of cylinder= volume of blood it can hold = 3.14\times (0.425cm)^2\times 9.5cm=5.39cm^3=0.539dm^3 [tex]      (1cm=0.1dm)

Thus 0.539 cubic decimeters of blood can be hold by the cylinder.

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8x - 4y = -12 solve for y
son4ous [18]
Solving an equation means finding a value of a variable that make the equation true. This value is called the solution of the equation. A mathematical equation is just like a balanced equation. Both sides of the equation should be equal at all times. Whatever we do to one side, has to be done on the opposite side. 

8x - 4y = -12 

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4 0
3 years ago
The paint in a certain container is sufficient to paint an area equal to 9.375 m^2. How many bricks of dimensions 22.5 cm × 10 c
Minchanka [31]
Let l = 22.5 cm, b = 10 cm and h = 7.5 cm
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= 2(lb + bh + lh)
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Area that can be painted using the paint of container = 9.375 m² = 9.375 × 100 × 100 cm²

Number of bricks that can be painted
=   \frac{Total \: area \: that \: can \: be \: painted}{ Surface \: area \: of \: each \: brick }
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Hence, 100 bricks can be painted out of the paint given in the container.
8 0
3 years ago
Ms. O’Grady has 6 1/8 gallons of paint. She needs 1 2/5 gallons to paint each wall in her house. How many complete walls can Ms.
guajiro [1.7K]

Answer: 4 walls

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In order to do this, we need to find the least common multiple of the numbers 8 and 5. A simple way of doing this is muliplying the numbers together: 8x5=40. Therefore, we need to change our fractions so both denominators equal 40.

1/8 x 5/5 = 5/40

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Now that we have our fractions writen in much simpler terms, we need to add the coefficients to them.

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Now, we divide 245 by 56, which gets us 4 15/40, which can be simplified to 4 3/8. However, Ms. O'Grady can only paint 4 ENTIRE walls. The 3/8 does not matter in this scenario because she can only paint 3/8 of the wall. Therefore, your answer is 4. I hope this helps. :)

7 0
3 years ago
Please help me out........................
grandymaker [24]

RM is 10 because it’s the same as PM

Hope this helps

7 0
3 years ago
To find the depth of a pond, a scientist puts a 100-inch pole vertically into the
marusya05 [52]

Answer:

The pond is 82 inches deep.

Step-by-step explanation:

100 in - 18 in = 82 in

Hope this helps and please mark brainliest!

3 0
3 years ago
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