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| DD The displacement s in meters covered by a car in t sec is modeled by the equation s = t2 + 8t. Find the time required for the car to cover 33 m. DD |
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| DD If n and t are positive integers and t2 = n2 + 13, then what are the values of n and t? DD |
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| DD If the input, output of a engine are 54 s9Joules, 44 s9Joules, then find the efficiency of the engine. DD |
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| DD Find the work input of a machine if its efficiency is 0.22 and work output is 15r2 Joules. DD |
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DD Factor the GCF out of 3tn + 6 + 15tn + 5 + 9tn.
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| DD Express 9z12rp2r+24z6rprg4q+16g8q as a perfect square. DD |
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DD The length of a rectangle is 4 units more than its breadth. If the area of the rectangle is 21 square units, then find its perimeter.
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| DD Which of the following is/are the factors of the polynomial n36 - 64 . DD |
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| DD John has bought a cylindrical cake of height 6 in. and the volume of the cake is 486π in.3. Find the diameter of the cake. DD |
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| DD The surface area of a sphere is 676π square units. Find the radius of the sphere. DD |
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| DD Find all the values of x for which log2(x - 9)(x - 10) = 1 DD |
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| DD The equations y = mx - 10 and y = 706x+11 intersect at x = 4 and x = a. Find the values of m and a. DD |
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DD Find the variables that must be excluded from the domain of the simplified rational expression of u2+7u+10u2-3u-10.
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DD Find for what values of the variable is the expression 12-xx2-9x-36 is undefined.
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DD Which of the following is the simplest form of the expression x4-6252x2+5x-25 in simplest form.
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| DD Simplify: n4n+8n2nv2n+16v4n7n4n+32n2nv2n+16v4n DD |
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ff Area of a black board is given by the expression 90z2 + 271z + 190 square units. If the length of the board is (9z + 10) units, then find its breadth.
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ff The product of two consecutive negative integers is 272. What are the numbers?
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| ff Which of the following is/are the factors of the polynomial m4 + 74m2 + 4761. ff |
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| ff Factor out completely l2 + 7kl - 28pl - 196kp. ff |
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