# Recent questions tagged number

17
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Is there a limit to the number of votes a person can cast per category in the Basadi in Music Awards?
51
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Calculate the number of moles in Ti and O and Fe in the question and find its ratio
97
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If I no longer remember or use the email and cell number I registered for NSFAS with, how can I retrieve my OTP?
44
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Define a complex number and its basic properties.
69
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What is the conjugate of the complex number $$7+3i$$ ?
112
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In one paragraph, What is the significance of the number 9 in numerology?
106
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Is it true that the product of any number multiplied by 9 has a sum which is a multiply of 9?
69
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Let $f \in \mathcal{H}(\Omega)$. Under certain conditions on $z, \Gamma$, we have that: f^{(n)}(z) = \frac{n!}{2\pi i} \int_\Gamma \frac{f(\zeta)}{(\zeta - z)^{n+1}} d\...
141
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Simplify the following expression $$\sqrt{125}+3 \sqrt{2}-\frac{16}{\sqrt{32}}-\sqrt{20}$$
92
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Is $$\log_{10}2$$ rational?
119
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Simplify the following expression: $\dfrac{1}{2} + \dfrac{3}{8} + \dfrac{5}{6}$
140
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Simplify the algebraic expression $$\frac{b^{2}+5 b}{b^{2}-25} \times \frac{3 b^{2}-15 b}{6 b}$$
160
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Simplify: $$3 x^{2}+2 x-5-\left(x^{2}-4 x+1\right)$$
139
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Simplify the expression: $$\frac{4 x^{2}-9}{2 x+3}$$.
167
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What is number theory?
169
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Is the number $$-\frac{10}{3}$$ a rational number?
140
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Simplify the algebraic expression $$\left(\frac{\sqrt{5^{2023}}-\sqrt{5^{2021}}}{\sqrt{5^{2020}}}-\sqrt{45}\right)^{2}$$
119
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Simplify the algebraic expression $$\left(\frac{1}{\sqrt[3]{p^{2}}}\right)^{-3}$$
142
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Simplify $$\sqrt[15]{243}$$
120
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Simplify $$8 \div 2(2+2)=$$
208
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What is the difference between cardinal and ordinal numbers?
90
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What is a golden number?
118
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How do you get the size number of your footwear?
92
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How many zeros are there in a billion?
141
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Why can’t we divide a number by zero?
159
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Why does every number raised to the power of zero equal one?
93
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Is zero an even number?
317
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What is a modulus of a number?
125
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Simplify $$\frac{11+x}{x^{3}}+2 x(5-x)$$
368
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Simplify $$(x+5)(x+2)$$
142
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Simplify the complex expression$(2-3 i)(-2+i)$
129
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Simplify the complex number $$5(3-2 i)+2 i(4+6 i)$$
128
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SImplify $$(3 x) /\left(x^2+3\right)-(2 x) /\left(x^2+1\right)$$
220
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Evaluate $$f(x)=-a^3+6 a-7$$ at $$a=-1$$ and state the remainder.
145
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Simplify the expression $$\frac{11+x}{x^{3}}+2 x(5-x)$$
142
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Simplify the following expression by using the exponential laws $$\frac{(x^2y)^3}{xy}$$
330
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How do I convert a number from decimal to binary?
594
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Factorise fullya) $$6 x y-2 x$$b) $$x^2(y+3)-(y+3)$$c) $$4 x^2-y^2$$d) $$x^2-11 x+18$$
570
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How do I determine square root of negative number in python?
465
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How do I deal with a negative number in square root?
646
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What is binary multiplication?
762
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423
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How do you convert an octal number to decimal?
351
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How can you convert a decimal number to binary?
394
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How do you convert a binary number to decimal?
1.9k
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How many possible number combinations are there in the South African Lotto?
228
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Simplify $$2^x \cdot 8^{x+1}$$
Simplify $$a^{2 x} \cdot a^{3 x+1}$$