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2 years ago

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Mathematics

1 answer:

user100 [1]2 years ago

5 0

Answer:

Step-by-step explanation:

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What is the expanded form of 232÷4

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(2x100) (3x10) (2x1) / (4x1)

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3 years ago

A water storage tank has the shape of a cylinder with diameter 14 ft. It is mounted so that the circular cross-sections are vert

andrezito [222]

Answer:

percentage of the total capacity is 75.6%

Step-by-step explanation:

Hello! To solve this problem we follow the following steps

1. draw the complete scheme of the problem (see attached image)

2. To solve this problem we must find the area of the circular sector using the following equation.(c in the second attached image)

$A=\frac{R^2}{2} (\alpha -sin\alpha )$

$\alpha =2arccos(\frac{d}{R})$

3. observing the attached images we replace the values in the equations and find the area of the circular sector, remember that you must transform the angle to radians

$\alpha =2arccos(\frac{5}{7})=88.83$

$A=\frac{R^2}{2} (\alpha -sin\alpha )\\A=\frac{7^2}{2} (88.83-sen88.83)*\frac{\pi rad}{180} =37.57ft^2$

4.we calculate the area of the total circle (At), then subtract the area of the circular sector (Ac) to find the area occupied by water (Aw)

$At=\frac{\pi }{4} (14ft)^2=153.93ft^2$

Aw=At-Ac=153.93-37.57=116.36ft^2

5.Finally, we calculate the percentage that represents the water in the tank by dividing the area of the water over the total area of the tank

$\frac{116.36}{153.93} *100=75.6$

percentage of the total capacity is 75.6%

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The glass is not always half full

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I think disjunction describes the statement

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0.0002 in scientific notation

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Answer:

2 * 10 ^-4

Step-by-step explanation:

We need the first number to be between 1 and less than 10

.0002

2 * 10 ^ exponent

We move the decimal 4 places to the right. Since we move it to the right the exponent is negative and is the number of places we moved the decimal

2 * 10 ^-4

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3 years ago

CAN SOMEONE PLEASE ANSWER THIS ASAP FOR BRAINLIEST!!!

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Answer:

Step-by-step explanation:

The answer is 10b^2

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