Maths-
General
Easy
Question
Find the area between the two concentric circles of radius 3cm and 4cm.
- 7 cm2
- 22 cm2
- 22/7 cm2
- 16 cm2
The correct answer is: 22 cm2
area of circle = pi r2
In this case it will be =. Pi (42-32) = 22/7 x (16-9) = 22/7 x 7 = 22 cm2
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Which of the following is correct:
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Lawren has $1000 in a saving account. He wants to save at least $400 before winter. He withdraws $50 every week for daily requirements. Write an inequality that represents Lawren’s situation.
For such questions, we have to see which quantity is constant and variable. We have be careful about the words like “at least”, “at most”, etc.
Lawren has $1000 in a saving account. He wants to save at least $400 before winter. He withdraws $50 every week for daily requirements. Write an inequality that represents Lawren’s situation.
Maths-General
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While solving math problems one of the group calculator and the other did manually. First group which used calculator was able to complete the assignment early. What is dependent variable
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While measuring the temperature at different depths, scientists found that temperature v aried. What is independent variable
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Chandler is travelling from Ottawa to Alberta. What is dependent variable
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Cost of 1Kg apple is $12. Identify the independent quantity.
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At a constant speed a car starts from New York. What is dependent variable?
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The height of a guava tree depends on the amount of water it receives. Identify the independent variable
The height of a guava tree depends on the amount of water it receives. Identify the independent variable
Maths-General
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Subtract from
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Maths-General
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Arrange the following numbers in increasing order: 1/2 , 3/4 , 5/6, 3/2, 8/7, 9/4
When we are comparing negative numbers the number with least value is the greater number. The number with higher value is the smaller number.
Arrange the following numbers in increasing order: 1/2 , 3/4 , 5/6, 3/2, 8/7, 9/4
Maths-General
When we are comparing negative numbers the number with least value is the greater number. The number with higher value is the smaller number.