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Work out the following division: 10y(6y + 21) ÷ 5(2y + 7)

Answer: 6y The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to calculate the... View Article

Work out the following division: 96abc(3a – 12)(5b -30) ÷ 144(a – 4)(b – 6)

Answer: 10 abc The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to calculate... View Article

Work out the following division: 9x²y²(3z – 24) ÷ 27xy(z – 8)

Answer: xy The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to calculate the... View Article

Write all the other trigonometric ratios of ∠A in terms of sec A.

Answer: cos A function in terms of sec A: sec A = 1/cos A ⇒ cos A = 1/sec A sec A function in terms of sec A: cos2A + sin2A = 1 Rearrange... View Article

Write down the names of parts of the eye in the blank spaces shown in Fig.

Answer: The eye is an important and one of the most complex sens organs that we humans are endowed with. It helps us in visualizing objects and... View Article

Write five rational numbers which are smaller than 2.

Answer: Rational numbers are represented in p/q form where q is not equal to zero. It is also a type of real number. Any fraction with non-zero... View Article

Write T against true and F against false in the following statements. (a) Lightning conductor cannot protect a building from lightning (T/F) (b) Earthquakes can be predicted in advance (T/F)

Answer: (a) Lightning conductor cannot protect a building from lightning - False(F) The lightning conductor is a thick copper wire or a strip... View Article

Write T against true and F against false in the following statements. (a) Like charges attract each other (T/F) (b) A charged glass rod attract a charged plastic straw (T/F)

Answer: (a) Like charges attract each other - False(F) Coulomb’s law states that opposite electric charges attract each other while similar... View Article

Write the additive inverse of each of the following (i) 2/-9 (ii) 19/-16

Answer: An additive inverse of a number is defined as the value, which on adding with the original number results in zero value. It is the value... View Article

Write the additive inverse of each of the following (i) 2/8 (ii) -5/9 (iii) -6/-5

Answer: An additive inverse of a number is defined as the value, which on adding with the original number results in zero value. It is the value... View Article

Write the coefficients of x² in: √2x-1

Answer: 0 A polynomial is defined as an expression that is composed of variables, constants and exponents, that are combined using mathematical... View Article

Write the coefficients of x² in: 2 – x² + x³

Answer: -1 A polynomial is defined as an expression that is composed of variables, constants and exponents, that are combined using mathematical... View Article

Write the coefficients of x² in: 2 + x² + x

Answer: 1 A polynomial is defined as an expression that is composed of variables, constants and exponents, that are combined using mathematical... View Article

Write the degree of the following polynomial: 3

Answer: 0 A polynomial’s degree is the highest or the greatest power of a variable in a polynomial equation. The degree indicates the... View Article

Write the degree of the following polynomial: 4 – y²

Answer: 2 A polynomial’s degree is the highest or the greatest power of a variable in a polynomial equation. The degree indicates the... View Article

Write the degree of the following polynomial: 5t – √7

Answer: 1 A polynomial’s degree is the highest or the greatest power of a variable in a polynomial equation. The degree indicates the... View Article

Write the degree of the following polynomial: 5x³ + 4x² + 7x

Answer: 3 A polynomial’s degree is the highest or the greatest power of a variable in a polynomial equation. The degree indicates the... View Article

Write the following cubes in expanded form: ((3/2) x + 1)³.

Answer: Given ((3/2)x + 1)3 Using identity, (x + y)3 = x3 + y3 + 3xy(x + y) ((3/2)x + 1)3 = ((3/2)x)3 + 13 + (3 × (3/2)x × 1)((3/2)x... View Article

Write the following cubes in expanded form: (2a – 3b)³

Answer: Given (2a - 3b)3 Algebric identity (a - b)3 = a3 - b3 - 3ab (a - b) Using identity, (x - y)3 = x3 - y3 - 3xy(x - y) (2a - 3b)3 = (2a)3-... View Article

Write the following cubes in expanded form: (2x + 1)³

Answer: Given (2x + 1)3 Algebric identity (a + b)3 = a3 + b3 + 3ab (a + b) Using identity, (x + y)3 = x3 + y3 + 3xy(x + y) (2x + 1)3= (2x)3 + 13... View Article

M	T	W	T	F	S	S
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5	6	7	8	9	10	11
12	13	14	15	16	17	18
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