Question 21.
The like terms of the following are
(a) x, 3x
(b) x, 2y
(c) 2y, 6xy
(d) 3x, 2y
Answer
Question 22.
The like terms of the following are
(a) 2x², 9x²
(b) y², xy
(c) xy, 9a²
(d) y², 9x²
Answer
Question 23.
The like terms of the following are
(a) ab, 9ba
(b) ab, -5b
(c) -5b, 9ba
(d) ab, -3a
Answer
Question 24.
The number of like terms in 9x³, 16x²y, -8x³, 12xy², 6x³ is
(a) 3
(b) 2
(c) 4
(d) 5.
Answer
Question 25.
The number of like terms in
abc, -abc, -bca, acb, bac, 12cab is
(a) 6
(b) 4
(c) 3
(d) 2.
Answer
Question 26.
The number of like terms in
14a²bc, – 23bca², 25 ba²c, – 12cba² is
(a) 4
(b) 3
(c) 2
(d) 6.
Answer
Question 27.
The coefficient of x²y in 7pqrx² is
(a) 7pqr
(b) pqr
(c) -7pqr
(d) 7
Answer
Question 28.
The coefficient of xy in xy is
(a) 1
(b) -1
(c) 2
(d) 3.
Answer
Question 29.
The coefficient of x²y in -15 x²y is
(a) 15
(b) -15
(c) 3
(d) 5.
Answer
Question 30.
The coefficient of xy in 6x²y² is
(a) xy
(b) 2xy
(c) 3xy
(d) 6xy
Answer
Question 31.
The coefficient of xy2z in -7x2y3z is
(a) -7xy
(b) 7xy
(c) -xy
(d) xy.
Answer
Question 32.
The sum of 7x, 10x and 12x is
(a) 17x
(b) 22x
(c) 19x
(d) 29x.
Answer
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Pedigree Chart: A pedigree chart is a diagram that shows the occurrence and appearance or phenotypes of a particular gene or organism and its ancestors from one generation to the next. In the pedigree chart, males are shown by squares and females by circles.
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Step-by-step explanation:
The like terms of the following are
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