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2 years ago

The chance of picking at random a yellow ball from a bag containing 6 red balls and 2 yellow balls is:

Mathematics

2 answers:

professor190 [17]2 years ago

7 0

Answer:

Step-by-step explanation:

c sorry if im wrong

nevsk [136]2 years ago

6 0

Answer:

Step-by-step explanation:

If the bag contains a total of 8 balls, then the chance of picking 2 yellow balls from a total of 8 balls is given by 2/8, simplified, this is 1/4.

<u>This is how you simplify:</u>

1. Write the fraction.

$\frac{2}{8}$

2. Find a number that can divide both the numerator and the denominator. A number could be 2, therefore, divide both the numerator and the denominator by this number.

$\frac{2/2}{8/2} =\frac{1}{4}$

Final answer: $\frac{1}{4}$

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Answer:

10100

Step-by-step explanation:

the sum of the first 100 even integers is equal to 10100.

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3 years ago

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The figure is made up of a cylinder and a sphere which has been cut in half. The radius of each half sphere is 5 mm. What is

alexgriva [62]

<h2>Answer:</h2>

<em>Rounded to the nearest hundredth the volume of the composite figure is:</em>

<em>1308 33 cubic millimeters</em>

<h2>Explanation:</h2>

Hello! I wrote the complete question in a comment above. The volume of a cylinder is defined as:

$V_{c}=\pi r^2 h \\ \\ r:radius \\ \\ h:height$

While the volume of half a sphere is:

$V_{hs}=\frac{2}{3}\pi r^3$

Since we have 2 half spheres, then the volume of these is the same as the volume of a sphere:

$V_{s}=\frac{4}{3}\pi r^3$

Then, the composite figure is:

$V=\pi r^2 h +\frac{4}{3}\pi r^3 \\ \\ V=\pi r^2(h+\frac{4}{3}r)$

The radius of the cylinder is the same of the radius of each half sphere. So:

$r=5mm \\ \\ h=10mm \\ \\ \\ V=(3.14) (5)^2((10)+\frac{4}{3}(5)) \\ \\ V=25(3.14)(10+\frac{20}{3}) \\ \\ \boxed{V\approx 1308.33mm^3}$

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3 years ago

The key idea of the transformation called a rotation is the moving of the plane a certain about a ______ point.

Svetlanka [38]

The key idea of the transformation called a rotation is the moving of the plane a certain angle around a fixed point.

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3 years ago

Can someone help me please

andrey2020 [161]

Answer: y = 6

Step-by-step explanation:

A square's area can be done by using s^2, where s is y in this case. Because there are 5 squares, the area of the figure is 5y^2. Because the area is also 180cm, 5y^2=180.

Then divide both sides of the equation by 5 to get y^2 = 36. Then square root both sides of the equation to get y = 6.

Hope it helps <3

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3 years ago