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Solved Examples
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ccc Estimate the value of 873 to the nearest whole number.
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ccc Is 5110a rational number or an irrational number?
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ccc Which two integers satisfy the equation - y2 = - 729? ccc View Solution
ccc Simplify the expression. 16×9 ccc View Solution
ccc The perimeter of the square is 16√2 inches. What is its diagonal-length?
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ccc A boy dropped a ball from the top of a building of height 62.5 meters. The equation t = h2.5 gives the time t taken by the ball to hit the ground, where h is the height from which it has been dropped. How long will it take for the ball to hit the ground?
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ccc Simplify the expression -√25 × -√9. ccc View Solution
ccc Is √(179) a rational or an irrational number? ccc View Solution
ccc Which two numbers satisfy the equation y2 = 1916? ccc View Solution
ccc All the children in a school were made to stand in a square formation. Out of 687 children, 11 were left after forming the square. How many children are there in each row? ccc View Solution
ccc Simplify the expression -√(54) × √(64125). ccc View Solution
ccc Simplify the expression -√30 × -√6 × √5. ccc View Solution
ccc Simplify the expression √(1916) × √(1681). ccc View Solution
ccc Simplify the expression √80√5. ccc View Solution
ccc Simplify the expression √(113)/√(34). ccc View Solution
ccc Simplify the expression √(6512)/√(4849). ccc View Solution
ccc Evaluate √(b2 - 4ac) when a = 1, b = - 1 and c = - 2. ccc View Solution
BB  A boy dropped a marble from the top of a building of height 107.5 meters. The equation t = √(h4.3 gives the time t taken by the marble to hit the ground, where h is the height from which it has been dropped. How long will it take for the marble to hit the ground?
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BB  Estimate the nearest integer for the number √(514).  BB View Solution
BB  Is the difference between the two irrational numbers, 28.34268152 and 1.35253534, a rational number or an irrational number?  BB View Solution
BB  Is 1016a rational number or an irrational number?
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BB  Estimate the value of 382 to the nearest whole number.
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BB  All the children in a school were made to stand in a square formation. Out of 2448 children, 47 were left after forming the square. How many children are there in each row?  BB View Solution
BB  The perimeter of the square is 20√2 inches. What is its diagonal-length?
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BB  A player kicks the ball to make a goal in a soccerball game. The path traced by the ball is modeled by the equation d = - 0.8h2 + 96, where h represents the height of the soccerball from the ground (in feet) and d represents horizontal distance (in feet). Calculate the value of h, when d = 16 feet.
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BB  Is √(1916) a rational or an irrational number?  BB View Solution
BB  A boy dropped a ball from the top of a building of height 55 meters. The equation t = h2.2 gives the time t taken by the ball to hit the ground, where h is the height from which it has been dropped. How long will it take for the ball to hit the ground?
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BB  Which two integers satisfy the equation - y2 = - 1296?  BB View Solution
BB  Simplify the expression. 16×4  BB View Solution
BB  Which two numbers satisfy the equation y2 = 214?  BB View Solution
BB  Is the sum of the two irrational numbers, 11.23156272 and 6.54621505, a rational number or an irrational number?  BB View Solution
BB  Is the difference between the two rational numbers, 12.45324532 and 2.87878787, a rational number or an irrational number?
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BB  Evaluate √(b2 - 4ac) when a = 3, b = - 3 and c = - 6.  BB View Solution
BB  Simplify the expression -√25 × -√4.  BB View Solution
BB  Simplify the expression -√(65) × √(125216).  BB View Solution
BB  Simplify the expression √(179) × √(949).  BB View Solution
BB  Simplify the expression -√12 × -√4 × √3.  BB View Solution
BB  Simplify the expression √12√3.  BB View Solution
BB  Simplify the expression √(112)/√(23).  BB View Solution
BB  Simplify the expression √(5343)/√(3536).  BB View Solution
BB  A boy dropped a ball from the top of a building of height 157.5 meters. The equation t = √(h6.3 gives the time t taken by the ball to hit the ground, where h is the height from which it has been dropped. How long will it take for the ball to hit the ground?
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BB  Estimate the value of 36149 to the nearest tenth.
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BB  What is the area of the figure?
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BB  Find the side of a square, if its area is 12 square units.
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BB  Is the sum of two rational numbers, 1.345345 and 49.432432, a rational number or an irrational number?
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BB  Approximate 21 to the nearest tenth.
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BB  Approximate 218 to the nearest tenth.
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BB  Choose the point that represents 2 on the number line.
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BB  Identify the number line that shows the approximate location of 40.
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BB  Choose the point that represents 5 on the number line.  BB View Solution
BB  Identify the square root that the point represents on the number line.
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BB  Choose the point that represents 6 on the number line.  BB View Solution
BB  Find the estimate of 850.  BB View Solution
BB  The length of the diagonal of a rectangle is 765. Approximate this length.
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BB  Pick the two whole numbers between which the square root of 174 lies.
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BB  Between which two whole numbers does the square root of 302 lie?
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BB  Between which two whole numbers does the square root of 178 lie?  BB View Solution
BB  Find the value of n, if n = 13.
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BB  If 7n = 49, then find the value of n.
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BB  Find the cube root of 125.  BB View Solution
BB  If 8n = 64, then find the value of n.
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BB  Find the value of 15 to the nearest tenth.
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BB  Find the value of 22 to the nearest tenth.  BB View Solution
BB  The area of a square is 17. Find the approximate value of this.
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BB  If 2n - 1 = 32, then find the value of n.
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BB  Between which two whole numbers does the square root of 302 lie?
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