# Recent questions tagged semester-1

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Evaluate the expression $(12 \div 4)+[2 \times(-2)]$ accurately?
Evaluate the expression $(12 \div 4)+[2 \times(-2)]$ accurately?Evaluate &nbsp;the expression $(12 \div 4)+2 \times(-2)$ accurately? ...
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Evaluate $8 \div 2(2+2)=?$
Evaluate $8 \div 2(2+2)=?$Evaluate $8 \div 2(2+2)=?$ ...
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There are 3 spoons, 4 forks and 4 knives on the table. What fraction of the utensils are forks OR knives?
There are 3 spoons, 4 forks and 4 knives on the table. What fraction of the utensils are forks OR knives?There are 3 spoons, 4 forks and 4 knives on the table. What fraction of the utensils are forks OR knives? ...
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Simplify:( $\left.\frac{10 \sqrt{3}}{\sqrt{5}}-\sqrt{15}\right)^{2}$
Simplify:( $\left.\frac{10 \sqrt{3}}{\sqrt{5}}-\sqrt{15}\right)^{2}$Simplify:( $\left.\frac{10 \sqrt{3}}{\sqrt{5}}-\sqrt{15}\right)^{2}$ ...
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What is a Boolean?
What is a Boolean?What is a Boolean? ...
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One third a number increased by seven is five less than the twice the number. What is the number?
One third a number increased by seven is five less than the twice the number. What is the number?One third a number increased by seven is five less than the twice the number. What is the number? ...
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A group of 15 workers decides to send a delegation of 4 to their supervisor to discuss their work assignments. In the following cases, determine the possible number of delegations.A group of 15 workers decides to send a delegation of 4 to their supervisor to discuss their work assignments. In the following cases, determine the p ...
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A restaurant owner orders a replacement set of knives, fork, and spoons. The box arrives containing 40 utensils and weighing $141.3$ ounces (ignoring the weight of the box).
A restaurant owner orders a replacement set of knives, fork, and spoons. The box arrives containing 40 utensils and weighing $141.3$ ounces (ignoring the weight of the box).A restaurant owner orders a replacement set of knives, fork, and spoons. The box arrives containing 40 utensils and weighing $141.3$ ounces (ignorin ...
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What are the norms of $v=(1,-3,4,2)$ and $w=\left(\frac{1}{2},-\frac{1}{6}, \frac{5}{6}, \frac{1}{6}\right) .$?
What are the norms of $v=(1,-3,4,2)$ and $w=\left(\frac{1}{2},-\frac{1}{6}, \frac{5}{6}, \frac{1}{6}\right) .$?What are the norms of $v=(1,-3,4,2)$ and $w=\left(\frac{1}{2},-\frac{1}{6}, \frac{5}{6}, \frac{1}{6}\right) .$? ...
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The expression $\sqrt{-x^{2}+6 x-5}$ has a
The expression $\sqrt{-x^{2}+6 x-5}$ has aThe expression $\sqrt{-x^{2}+6 x-5}$ has a (A) maximum value of 2 (B) minimum value of 2 (C) maximum value of 3 (D) $\quad$ minimum value of 3 ...
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Expand the following binomial: $\left(3 a-\dfrac{2}{3}\right)^{6}$
Expand the following binomial: $\left(3 a-\dfrac{2}{3}\right)^{6}$Expand the following binomial: $\left(3 a-\dfrac{2}{3}\right)^{6}$ ...
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$\left(-9^{*} 24\right)$ divided by $[-15-(23)]$
$\left(-9^{*} 24\right)$ divided by $[-15-(23)]$$\left(-9^{} 24\right)$ divided by $-15-(23)$ ...
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Simplify the following algebraic expression:
Simplify the following algebraic expression:Simplify the following algebraic expression: PMT $\left\frac{1-(1+0.0225)^{6}(1+0.044)^{-6}}{0.044-0.0225}\right+\operatorname{PMT}\left(\frac{1}{0. ... close 1 answer 115 views Simplify the following algebraic expression:$\left(\dfrac{15 a^{7} b^{3} c^{2}}{5 a^{5} c}\right)^{3} \div\left(\dfrac{9 a^{4} b^{6} c^{5}}{3 a^{2} b^{2} c^{3}}\right)^{\frac{3}{2}}$Simplify the following algebraic expression:$\left(\dfrac{15 a^{7} b^{3} c^{2}}{5 a^{5} c}\right)^{3} \div\left(\dfrac{9 a^{4} b^{6} c^{5}}{3 a^{2} b ...
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Simply $2 a-3 a+4+6 a-3$
Simply $2 a-3 a+4+6 a-3$Simply $2 a-3 a+4+6 a-3$ ...
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Write the following with a root sign.
Write the following with a root sign.Write the following with a root sign. (a) $\quad a^{\frac{2}{5}}=$ (b) $x^{\frac{4}{3}}=$ ...
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Write the following without the root sign.
Write the following without the root sign.Write the following without the root sign. (a) $\sqrt{a^{2}}= \quad$ (b) $\quad \sqrt{x}=$ ...
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Simplify $(0,25)^{\dfrac{3}{2}}$ without using a calculator.
Simplify $(0,25)^{\dfrac{3}{2}}$ without using a calculator.Simplify &nbsp;&nbsp;$(0,25)^{\dfrac{3}{2}}$ without using a calculator. ...
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Evaluate $47-4 \times 5 \div 4+8$
Evaluate $47-4 \times 5 \div 4+8$Evaluate $47-4 \times 5 \div 4+8$ ...
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Find $726 \times 32+726 \times 68$.
Find $726 \times 32+726 \times 68$.Find $726 \times 32+726 \times 68$. ...
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Evaluate: $-18+4(6 \div 2)^{2}$
Evaluate: $-18+4(6 \div 2)^{2}$Evaluate: $-18+4(6 \div 2)^{2}$ ...
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Evaluate the following expression and write the answer as a single number without exponents. $- {6^2} + 4 \cdot {3^2}$
Evaluate the following expression and write the answer as a single number without exponents. $- {6^2} + 4 \cdot {3^2}$Evaluate the following expression and write the answer as a single number without exponents. \ - {6^2} + 4 \cdot {3^2}\ ...
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Round 34,9974321 off to six, four and two decimal digits, respectively.
Round 34,9974321 off to six, four and two decimal digits, respectively.Round 34,9974321 off to six, four and two decimal digits, respectively. ...
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Simplify the following expression 35 + 42 âˆ’ 16 âˆ’ 8
Simplify the following expression 35 + 42 âˆ’ 16 âˆ’ 8Simplify the following expression 35 + 42 âˆ’ 16 âˆ’ 8 ...
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Determine the area of the following figure
Determine the area of the following figure&lt;p&gt;Determine the area of the following figure&lt;/p&gt; &lt;p&gt;&lt;img alt=&quot;&quot; src=&quot;http://unisa.mathsgee.com/?qa=blob&amp;amp; ...
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The correct formula/expression for a number which is five times as big as the number obtained after p has been decreased by three is
The correct formula/expression for a number which is five times as big as the number obtained after p has been decreased by three isThe correct formula/expression for a number which is five times as big as the number obtained after p has been decreased by three is ...
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Jody invested R13 500 for 45 months in an account earning 6,80% simple interest. Determine the accumulated amount in her account after 45 months.
Jody invested R13 500 for 45 months in an account earning 6,80% simple interest. Determine the accumulated amount in her account after 45 months.Jody invested R13 500 for 45 months in an account earning 6,80% simple interest. Determine the accumulated amount in her account after 45 months. ...
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Determine the perimeter of the following figure
Determine the perimeter of the following figure&lt;p&gt;Determine the perimeter of the following figure&lt;/p&gt; &lt;p&gt;&lt;img alt=&quot;&quot; src=&quot;http://unisa.mathsgee.com/?qa=blob&amp ...
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Simplify the following expression: $\dfrac{ab}{c} + \dfrac{c}{ab} \times \dfrac{ab}{c}$
Simplify the following expression: $\dfrac{ab}{c} + \dfrac{c}{ab} \times \dfrac{ab}{c}$Simplify the following expression: $\dfrac{ab}{c} + &nbsp;\dfrac{c}{ab} \times \dfrac{ab}{c} &nbsp;$ ...
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Determine the period of time which the money was invested.
Determine the period of time which the money was invested.Johnston invested R5 500. He received R1 650,00 interest. The applicable simple interest rate was 5% per year. Determine the period of time which the ...
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Simplify the following expression: $\dfrac{25a^2}{8b} + \dfrac{16b}{5a}$
Simplify the following expression: $\dfrac{25a^2}{8b} + \dfrac{16b}{5a}$Simplify the following expression: $\dfrac{25a^2}{8b} + &nbsp;\dfrac{16b}{5a}$ ...
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Simplify the following expression: $\dfrac{2a}{3b} + \dfrac{b}{a}$
Simplify the following expression: $\dfrac{2a}{3b} + \dfrac{b}{a}$Simplify the following expression: $\dfrac{2a}{3b} + &nbsp;\dfrac{b}{a}$ ...
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Simplify the following expression: $2\dfrac{3}{5} + \dfrac{2}{3}$
Simplify the following expression: $2\dfrac{3}{5} + \dfrac{2}{3}$Simplify the following expression: $2\dfrac{3}{5} + &nbsp;\dfrac{2}{3}$ ...
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Write the number $2\dfrac{4}{5}$ as a decimal number
Write the number $2\dfrac{4}{5}$ as a decimal numberWrite the number $2\dfrac{4}{5}$ as a decimal number ...
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Solve the following equation $\dfrac{y}{2}-6=2$
Solve the following equation $\dfrac{y}{2}-6=2$Solve the following equation $\dfrac{y}{2}-6=2$ ...
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What is the value of $\sqrt {9}$?
What is the value of $\sqrt {9}$?What is the value of $\sqrt {9}$? ...
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Simplify the following expression: $(40a(3 + 4a - 6) + 15 \div 3 \times 5)(32 \div 4 + 5)$
Simplify the following expression: $(40a(3 + 4a - 6) + 15 \div 3 \times 5)(32 \div 4 + 5)$Simplify the following expression: $(40a(3 + 4a - 6) + 15 \div 3 \times 5)(32 \div 4 + 5)$ ...
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Simplify the following expression as far as possible: $\sqrt{36a^{16}b^{36}}$
Simplify the following expression as far as possible: $\sqrt{36a^{16}b^{36}}$Simplify the following expression as far as possible: $\sqrt{36a^{16}b^{36}}$ ...
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Simplify the following expression as far as possible: $xy + 3x^2y + 1 + 2xy^2 + yx^2 + 2 + yx$
Simplify the following expression as far as possible: $xy + 3x^2y + 1 + 2xy^2 + yx^2 + 2 + yx$Simplify the following expression as far as possible: $xy + 3x^2y + 1 + 2xy^2 + yx^2 + 2 + yx$ ...
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Simplify the following expression as far as possible without using a calculator: $\dfrac{2}{ 3} + \dfrac{3}{ 7} âˆ’ \dfrac{1}{ 2}$
Simplify the following expression as far as possible without using a calculator: $\dfrac{2}{ 3} + \dfrac{3}{ 7} âˆ’ \dfrac{1}{ 2}$Simplify the following expression as far as possible without using a calculator: $\dfrac{2}{ 3} + \dfrac{3}{ 7} âˆ’ \dfrac{1}{ 2}$ ...
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Simplify the following expressions $4 \times \dfrac{10x}{14y}$
Simplify the following expressions $4 \times \dfrac{10x}{14y}$Simplify the following expressions $4 \times \dfrac{10x}{14y}$ ...
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The expression that describes the amount of butter needed (in kg), to produce $x$ packets of biscuits is
The expression that describes the amount of butter needed (in kg), to produce $x$ packets of biscuits isA biscuit manufacturer uses 200 g of flour, 50 g of sugar and 100 g of butter for each packet of biscuits produced. The expression that describes the ...
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Factorise the number 21 as far as possible
Factorise the number 21 as far as possibleFactorise the number 21 as far as possible ...
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Solve the equation - Twice a number plus three times another number is 120.
Solve the equation - Twice a number plus three times another number is 120.Solve the equation - Twice a number plus three times another number is 120. ...
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Determine the volume of a cylinder with radius of 0,75 metres and a perpendicular height of 3,2 metres.
Determine the volume of a cylinder with radius of 0,75 metres and a perpendicular height of 3,2 metres.Determine the volume of a cylinder with radius of 0,75 metres and a perpendicular height of 3,2 metres. ...
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Determine the LCM (Lowest Common Multiple) of the following three numbers: 4, 16 and 14
Determine the LCM (Lowest Common Multiple) of the following three numbers: 4, 16 and 14Determine the LCM (Lowest Common Multiple) of the following three numbers: 4, 16 and 14 ...
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Simplifying the expression $12 âˆ’ 4x^2 âˆ’ (3 + x^2)$
Simplifying the expression $12 âˆ’ 4x^2 âˆ’ (3 + x^2)$Simplifying the expression $12 âˆ’ 4x^2 âˆ’ (3 + x^2)$ ...
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Simplify the following expressions $\dfrac{4}{7} \times \dfrac{5}{6}$
Simplify the following expressions $\dfrac{4}{7} \times \dfrac{5}{6}$Simplify the following expressions $\dfrac{4}{7} \times \dfrac{5}{6}$ ...
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Determine the amount that Amos borrowed if simple interest rate of 8,2% is applicable.
Simplify the following expression: $5a^2 \times 4b \div 3a \times 6b$
Simplify the following expression: $5a^2 \times 4b \div 3a \times 6b$Simplify the following expression: $5a^2 \times 4b \div 3a \times 6b$ ...