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problem-solving
Recent questions tagged problem-solving
104
views
1
answers
Express each of the following as rate percent : (a) 2/3 (b) 3/4 (c) 1/4 (d) 1/3 (e) 1/8 (f) 1/16 (g) 21/4 (h) 5/6
Express each of the following as rate percent : (a) 2/3 (b) 3/4 (c) 1/4 (d) 1/3 (e) 1/8 (f) 1/16 (g) 21/4 (h) 5/6
zobia-shaik
113
points
zobia-shaik
asked
Mar 23
Mathematics
problem-solving
latex
solution
+
–
69
views
1
answers
1.Express each of the following as a fraction : (a) 56% (b) 0.25% (c) 4% (d) 80% (e) 25% (f) 1% (g) 0.05% (h) 1.5% 2. Express each of the following as rate percent : (a) 2/3 (b) 3/4 (c) 1/4 (d) 1/3 (e) 1/8 (f) 1/16 (h) 5/6
1.Express each of the following as a fraction :(a) 56% (b) 0.25% (c) 4% (d) 80%(e) 25% (f) 1% (g) 0.05% (h) 1.5%2. Express each of the following as rate percent :(a) 2/3 ...
zobia-shaik
113
points
zobia-shaik
asked
Mar 23
Mathematics
problem-solving
+
–
118
views
1
answers
A shopkeeper cheats to the extent of 10% while buying as well as selling, by using false weights. His total gain is
A shopkeeper cheats to the extent of 10% while buying as well as selling, by using false weights. His total gain is
zobia-shaik
113
points
zobia-shaik
asked
Mar 22
Mathematics
problem-solving
solution
+
–
100
views
1
answers
Let the density function of a random variable \( \mathrm{X} \) be given by . . .
Let the density function of a random variable \( \mathrm{X} \) be given by \( f_{X}(x)=\frac{x+1}{2}, \quad-1 \leq x \leq 1 \). Then, the form of the density function of ...
shivvv99999
141
points
shivvv99999
asked
Feb 3
Mathematics
answer
problem-solving
calculate
mathematics
+
–
145
views
1
answers
Let the density function of a random variable \( \mathrm{X} \) be given by
Let the density function of a random variable \( \mathrm{X} \) be given by \( f_{X}(x)=\frac{x+1}{2},-1 \leq x \leq 1 \). Then, the form of the density function of \( W=X...
shivvv99999
141
points
shivvv99999
asked
Feb 3
Mathematics
solve
calculate
answer
problem-solving
+
–
112
views
1
answers
W.F. Sheppard's correction for the fourth central moment, \( { }^{\mu_{4}} \) is, a) \( \mu_{4}-\frac{1}{2} h^{2} \mu_{2}+\frac{7}{240} h^{3} \) b) \( \mu_{4}-\frac{1}{2} h \mu_{2}+\frac{7}{240} h^{4} \) c) \( \mu_{4}-\frac{1}{2} h^{2} \mu_{2}+\frac{7}{240} h^{4} \) d) \( \mu_{4}+\frac{1}{2} h^{2} \mu_{2}-\frac{7}{240} h^{4} \) Give correct answer
W.F. Sheppard's correction for the fourth central moment, \( { }^{\mu_{4}} \) is,a) \( \mu_{4}-\frac{1}{2} h^{2} \mu_{2}+\frac{7}{240} h^{3} \)b) \( \mu_{4}-\frac{1}{2} h...
shivvv99999
141
points
shivvv99999
asked
Feb 3
Mathematics
solve
problem-solving
answer
simple
+
–
84
views
1
answers
Q. The alternative hypothesis for the Chi-square test of independence states that. a) the three categorical variables independent. b) the two categorical variables independent. c) the two categorical variables dependent. d) the two ordinal variables independent. Give correct option
Q. The alternative hypothesis for the Chi-square test of independence states that.a) the three categorical variables independent.b) the two categorical variables independ...
shivvv99999
141
points
shivvv99999
asked
Feb 3
Mathematics
solve
calculate
problem-solving
answer
+
–
57
views
0
answers
For the cumulative distribution function, find \[ F(x)=\left\{\begin{aligned} 0, & x<1 \\ 0.7, & 1 \leq x<4 \\ 0.9, & 4 \leq x<7 \\ U, & 7 \leq x \end{aligned}\right. \] a. find U
For the cumulative distribution function, find\[F(x)=\left\{\begin{aligned}0, & x<1 \\0.7, & 1 \leq x<4 \\0.9, & 4 \leq x<7 \\U, & 7 \leq x\end{aligned}\right.\]a. find U...
Shri9999
Wooden Status
190
points
Shri9999
asked
Feb 1
Mathematics
calculus
math
mathematics
solve
problem-solving
+
–
77
views
0
answers
Complete the following table for Refrigerant-134a. Use data from the steam tables.
Complete the following table for Refrigerant-134a. Use data from the steam tables.\begin{array}{|c|c|c|c|}\hlineT \,^{\circ}\mathrm{C} & P, \mathrm{kPa} & u, \mathrm{~kJ/...
Shri9999
Wooden Status
190
points
Shri9999
asked
Jan 30
Chemical Engineering
solve
table
fill
problem-solving
+
–
126
views
1
answers
A disc \( 30 \mathrm{~cm} \) in diameter and \( 10 \mathrm{~cm} \) thick, initially at uniform temperature of \( 265 \backslash \mathrm{deg} C \) is immersed inliquid at \( -15 \backslash \operatorname{deg} C \). The convective heat - transfer coefficients on ends and on side are 340 and \( 1420 \mathrm{~W} / \mathrm{m} \) ? . K, respectively. Determine (a) temperature at centre of disc, (b) temperature on surface atcentre of one end, (c) temperature at \( 4 \mathrm{~cm} \) away from one of its flat faces and at radius \( 10 \mathrm{~cm} \), and (d)heat transfer rate, after 5 mins? \( \mathrm{p}=7854 \mathrm{~kg} / \mathrm{m} \backslash \mathrm{deg}, \mathrm{Cp} \) \( =487 \mathrm{~J} / \mathrm{kg} \cdot \mathrm{K}, \mathrm{a}=14.82 \backslash \) times \( 10-6 \mathrm{~m} ? / \mathrm{s} \)
A disc \( 30 \mathrm{~cm} \) in diameter and \( 10 \mathrm{~cm} \) thick, initially at uniform temperature of \( 265 \backslash \mathrm{deg} C \) is immersed inliquid at ...
Shri9999
Wooden Status
190
points
Shri9999
asked
Jan 30
Electrical Engineering
solve
calculate
problem-solving
problem-solver
+
–
127
views
1
answers
The following welding defects are observed due to the uneven thermal expansion and contraction of different regions of the welded assembly. a) Lamellar tears b) Distortion and warping of welding assembly. c) Surface damage d) All the above Give correct answer
The following welding defects are observed due to the uneven thermal expansion and contraction of different regions of the welded assembly.a) Lamellar tearsb) Distortion ...
Shri9999
Wooden Status
190
points
Shri9999
asked
Jan 29
Electrical Engineering
solve
calculate
simple
problem-solving
+
–
139
views
1
answers
Determine the position b, of the neutral point? Neglect front and back tensions. Additional data: Hardened steel rolls, surface roughness of the rolls = 0.04 μm and rolling temperature =190°C. 0.3 in. V=5ft/s R = 4 in. 7 ft/s 0.1 in. Options: 0.2 in. 0.6 in. 0.8 in. 0.4 in. Give correct answer
Determine the position b, of the neutral point? Neglect front and back tensions. Additional data: Hardened steel rolls, surface roughness of the rolls = 0.04 μm and roll...
Shri9999
Wooden Status
190
points
Shri9999
asked
Jan 29
Electrical Engineering
solve
calculate
problem-solving
simple
+
–
152
views
1
answers
6 kmol of CO2 and 5 kmol of N2 are filled in a rigid tank at 300 K and 15 MPa. Find the volume of the tank. a) 1.830 m³ b) 0.638 m³ c) 0.648 m³ d) 0.652 m³ give correct answer
6 kmol of CO2 and 5 kmol of N2 are filled in a rigid tank at 300 K and 15 MPa. Find the volume of the tank.a) 1.830 m³b) 0.638 m³c) 0.648 m³d) 0.652 m³give correct an...
Shri9999
Wooden Status
190
points
Shri9999
asked
Jan 29
Electrical Engineering
solve
problem-solving
calculate
simple
+
–
161
views
1
answers
A steel strip which is 10 in. long, - in. thick, and 0.5 in. wide. The allowable stress and modulus of shear for the steel is 12000 psi and 11x10^6 psi respectively. Determine the torsional spring rate. a) 2866.972 lbf/ft b) 1866.972 lbf/ft c) 1866.972 lbf/in. d) 2866.972 lbf/in. Give correct option only
A steel strip which is 10 in. long, - in. thick, and 0.5 in. wide. The allowable stress and modulus of shear for the steel is 12000 psi and 11x10^6 psi respectively. Dete...
Shri9999
Wooden Status
190
points
Shri9999
asked
Jan 29
Electrical Engineering
calculate
solve
problem-solving
simple
+
–
239
views
1
answers
A steel strip which is 10 in. long, - in. thick, and 0.5 in. wide. The allowable stress and modulus of shear for the steel is 12000 psi and 11x10^6 psi respectively. Determine the torsional spring rate. a) 2866.972 lbf/ft b) 1866.972 lbf/ft c) 1866.972 lbf/in. d) 2866.972 lbf/in.
A steel strip which is 10 in. long, - in. thick, and 0.5 in. wide. The allowable stress and modulus of shear for the steel is 12000 psi and 11x10^6 psi respectively. Dete...
Shri9999
Wooden Status
190
points
Shri9999
asked
Jan 29
Electrical Engineering
calculate
solve
problem-solving
simple
+
–
186
views
1
answers
Using a standard deck of 52 playing cards you are dealt 5 cards. What is the probability that you will be dealt at least 1 ace? give answer as decimal Answer:
Using a standard deck of 52 playing cards you are dealt 5 cards. What is the probability that youwill be dealt at least 1 ace? give answer as decimal Answer:
Shri9999
Wooden Status
190
points
Shri9999
asked
Jan 24
Mathematics
probability
math
solution
problem-solving
deck
+
–
95
views
1
answers
A group of eleven individuals is to be divided into two teams (Team A and Team B) of respective sizes 5 and 6. In how many ways can this be done? Give mathematical justification to your answer.
A group of eleven individuals is to be divided into two teams (Team A and Team B) of respective sizes 5 and 6. In how many ways can this be done? Give mathematical justif...
Shri9999
Wooden Status
190
points
Shri9999
asked
Jan 23
Mathematics
math
mathematics
problem-solving
solve
solution
+
–
111
views
1
answers
There are 60 people in an Italian restaurant. Of the 60 customers, 31 order pasta, 37 order pizza and 24 order a salad. There are 15 customers that order both pasta and a salad and 10 that order both pizza and a salad. There are 4 customers that order all three items. How many customers order both pizza and pasta, but not a salad? How many customers ordered just pizza?
There are 60 people in an Italian restaurant. Of the 60 customers, 31 order pasta, 37 order pizza and 24 order a salad. There are 15 customers that order both pasta and a...
Shri9999
Wooden Status
190
points
Shri9999
asked
Jan 23
Mathematics
probability
solve
math
mathematics
problem-solving
statistics
+
–
126
views
2
answers
Why is math important in everyday life?
Why is math important in everyday life?
MathsGee
Platinum
113k
points
MathsGee
asked
Jan 21
Mathematics
skills
problem-solving
everyday
life
math
+
–
153
views
1
answers
Simplify: \( 3 x^{2}+2 x-5-\left(x^{2}-4 x+1\right) \)
Simplify: \( 3 x^{2}+2 x-5-\left(x^{2}-4 x+1\right) \)
tecyzeeee
135
points
tecyzeeee
asked
Jan 9
Mathematics
expression
algebra
simplify
number
logarithms
problem-solving
grade12
+
–
305
views
1
answers
How can I improve my speed in solving math problems?
How can I improve my speed in solving math problems?
MathsGee
Platinum
113k
points
MathsGee
asked
Oct 20, 2023
Mathematics
problem-solving
skills
improve
math
+
–
139
views
1
answers
Simplify \(\sqrt[15]{243}\)
Simplify \(\sqrt[15]{243}\)
MathsGee
Platinum
113k
points
MathsGee
asked
Oct 19, 2023
Mathematics
number
expression
logarithms
simplify
problem-solving
algebra
grade12
+
–
363
views
1
answers
Simplify \( (x+5)(x+2) \)
Simplify \( (x+5)(x+2) \)
MathsGee
Platinum
113k
points
MathsGee
asked
Sep 18, 2023
Mathematics
expression
number
simplify
grade12
logarithms
problem-solving
algebra
+
–
123
views
1
answers
SImplify \((3 x) /\left(x^2+3\right)-(2 x) /\left(x^2+1\right)\)
SImplify \((3 x) /\left(x^2+3\right)-(2 x) /\left(x^2+1\right)\)
MathsGee
Platinum
113k
points
MathsGee
asked
Aug 3, 2023
Mathematics
expression
algebra
simplify
number
logarithms
grade12
problem-solving
+
–
471
views
0
answers
How can I improve my mathematical problem-solving skills?
I find it challenging to solve math problems efficiently. What strategies or techniques can I use to enhance my mathematical problem-solving skills?
MathsGee
Platinum
113k
points
MathsGee
asked
May 21, 2023
Mathematics
problem-solving
mathematics
skill improvement
+
–
378
views
1
answers
How can I improve my problem-solving skills in everyday life?
I want to enhance my problem-solving abilities and apply them in my daily activities. What steps can I take to achieve this?
MathsGee
Platinum
113k
points
MathsGee
asked
May 21, 2023
Mathematics
problem-solving
everyday life
skills
+
–
169
views
0
answers
How can I improve my mathematical problem-solving skills?
I find it challenging to solve math problems efficiently. What strategies or techniques can I use to enhance my mathematical problem-solving skills?
MathsGee
Platinum
113k
points
MathsGee
asked
May 18, 2023
Mathematics
problem-solving
mathematics
skill improvement
+
–
221
views
1
answers
Solve the equation. \[ \log _3(2 x-3)=\log _3(x+5) \]
Solve the equation.\[\log _3(2 x-3)=\log _3(x+5)\]
MathsGee
Platinum
113k
points
MathsGee
asked
Apr 17, 2023
Mathematics
logarithms
expression
grade12
calculate
simplify
problem-solving
+
–
225
views
1
answers
Simplify \(2^x \cdot 8^{x+1}\)
Simplify \(2^x \cdot 8^{x+1}\)
MathsGee
Platinum
113k
points
MathsGee
asked
Apr 7, 2023
Mathematics
simplify
expression
number
grade12
problem-solving
+
–
234
views
1
answers
Simplify \(a^{2 x} \cdot a^{3 x+1}\)
Simplify \(a^{2 x} \cdot a^{3 x+1}\)
MathsGee
Platinum
113k
points
MathsGee
asked
Apr 7, 2023
Mathematics
simplify
algebra
expression
number
logarithms
grade12
problem-solving
+
–
212
views
1
answers
Rewrite \(5^3=125\) as a logarithmic equation.
Rewrite \(5^3=125\) as a logarithmic equation.
MathsGee
Platinum
113k
points
MathsGee
asked
Mar 22, 2023
Mathematics
expression
exponents
calculate
logarithms
grade12
simplify
problem-solving
+
–
550
views
1
answers
Rewrite \(\log _3 9=2\) as an exponential equation.
Rewrite \(\log _3 9=2\) as an exponential equation.
MathsGee
Platinum
113k
points
MathsGee
asked
Mar 22, 2023
Mathematics
calculate
expression
exponents
logarithms
grade12
simplify
problem-solving
+
–
217
views
1
answers
Simplify \(\dfrac{3^{x+1}-3^x}{3^x}\)
a. Simplify \(\dfrac{3^{x+1}-3^x}{3^x}\)b. Hence or otherwise simplify \(\dfrac{3^{x+1}-3^x}{m \cdot 3^x+2^2 3^x}-\dfrac{3 m-12}{m^2-16}\)
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jan 30, 2023
Mathematics
expression
logarithms
algebra
number
problem-solving
grade12
simplify
+
–
577
views
1
answers
Simplify by rationalising the denominator (show all working without using a calculator) \( \dfrac{3}{\sqrt{7}-\sqrt{5}} \)
Simplify by rationalising the denominator (show all working without using a calculator)\(\dfrac{3}{\sqrt{7}-\sqrt{5}}\)
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jan 30, 2023
Mathematics
number
logarithms
expression
problem-solving
grade12
algebra
simplify
+
–
273
views
1
answers
Without using a calculator, simplify: \(\dfrac{(2 a)^{-2} \times 3 a^{-5}}{\left(a^3 b^{\frac{1}{2}}\right)^2 \times(a b)^0}\)
Without using a calculator, simplify: \(\dfrac{(2 a)^{-2} \times 3 a^{-5}}{\left(a^3 b^{\frac{1}{2}}\right)^2 \times(a b)^0}\)
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jan 30, 2023
Mathematics
number
expression
logarithms
problem-solving
grade12
algebra
simplify
+
–
193
views
1
answers
Without using a calculator \(\dfrac{6^{2 m} \times 4^{-m}}{\left(3^m\right)^2}\)
Without using a calculator \(\dfrac{6^{2 m} \times 4^{-m}}{\left(3^m\right)^2}\)
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jan 30, 2023
Mathematics
logarithms
simplify
number
expression
algebra
grade12
problem-solving
+
–
466
views
1
answers
Simplify without using a calculator \(\dfrac{x^2}{1+x}\) if \(x=1+\sqrt{3}\)
Simplify without using a calculator \(\dfrac{x^2}{1+x}\) if \(x=1+\sqrt{3}\)
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jan 30, 2023
Mathematics
number
expression
logarithms
problem-solving
grade12
algebra
+
–
451
views
1
answers
Simplify without using a calculator \(\dfrac{\sqrt{9^{x+2}}-\sqrt{9^{x-2}}}{3^{x-3}}\)
Simplify without using a calculator \(\dfrac{\sqrt{9^{x+2}}-\sqrt{9^{x-2}}}{3^{x-3}}\)
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jan 30, 2023
Mathematics
number
expression
simplify
logarithms
problem-solving
grade12
algebra
+
–
406
views
2
answers
How can I improve my problem-solving skills in math?
How can I improve my problem-solving skills in math?
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jan 27, 2023
Mathematics
improve
problem-solving
skills
math
+
–
332
views
1
answers
Simplify \(\frac{\log 16}{\log 4}\)
Simplify \(\frac{\log 16}{\log 4}\)
MathsGee
Platinum
113k
points
MathsGee
asked
Jan 22, 2023
Mathematics
expression
logarithms
number
simplify
grade12
problem-solving
calculus
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–
259
views
1
answers
SImplify \(\frac{\left(\log _2 8\right)^2}{\log _2 8^2}\)
SImplify \(\dfrac{\left(\log _2 8\right)^2}{\log _2 8^2}\)
MathsGee
Platinum
113k
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MathsGee
asked
Jan 22, 2023
Mathematics
logarithms
expression
grade12
simplify
number
problem-solving
algebra
+
–
272
views
1
answers
simplify \(\log _3 \sqrt{27}\)
simplify \(\log _3 \sqrt{27}\)
MathsGee
Platinum
113k
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MathsGee
asked
Jan 22, 2023
Mathematics
expression
simplify
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problem-solving
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308
views
1
answers
Simplify \(\log _3 \frac{1}{27}\)
Simplify \(\log _3 \frac{1}{27}\)
MathsGee
Platinum
113k
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Jan 22, 2023
Mathematics
grade12
expression
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problem-solving
exponents
calculate
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–
283
views
1
answers
simplify \(-\log 4-\log 25\)
simplify \(-\log 4-\log 25\)
MathsGee
Platinum
113k
points
MathsGee
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Jan 22, 2023
Mathematics
logarithms
expression
grade12
simplify
problem-solving
exponents
number
+
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337
views
1
answers
Simplify using laws of logs \(\log _3 27-\log _3 3\)
Simplify using laws of logs \(\log _3 27-\log _3 3\)
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Platinum
113k
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MathsGee
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Jan 22, 2023
Mathematics
logarithms
grade12
expression
exponents
simplify
problem-solving
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–
256
views
1
answers
Simplify \(\log _9 27+\log _9 3\)
Simplify \(\log _9 27+\log _9 3\)
MathsGee
Platinum
113k
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MathsGee
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Jan 22, 2023
Mathematics
expression
simplify
grade12
logarithms
problem-solving
exponents
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–
316
views
0
answers
Use the properties of logarithms to simplify the expression log base 5 of 25 + log base 5 of 125.
Use the properties of logarithms to simplify the expression log base 5 of 25 + log base 5 of 125.
MathsGee
Platinum
113k
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MathsGee
asked
Jan 9, 2023
Mathematics
simplify
logarithms
problem-solving
grade12
number
expression
exponents
+
–
242
views
0
answers
Simplify the expression log base 10 of 100.
Simplify the expression log base 10 of 100.
MathsGee
Platinum
113k
points
MathsGee
asked
Jan 9, 2023
Mathematics
number
expression
simplify
logarithms
problem-solving
grade12
exponents
+
–
207
views
0
answers
Simplify the expression log base 2 of 32.
Simplify the expression log base 2 of 32.
MathsGee
Platinum
113k
points
MathsGee
asked
Jan 9, 2023
Mathematics
number
simplify
expression
logarithms
grade12
problem-solving
exponents
+
–
214
views
0
answers
Sum of rational terms in \((\sqrt{2}+\sqrt[5]{3})^{10}\) is
Sum of rational terms in \((\sqrt{2}+\sqrt[5]{3})^{10}\) is
AstraNova
Diamond
67.9k
points
AstraNova
asked
Aug 15, 2022
Mathematics
rational
number
logarithms
simplify
problem-solving
denominator
rationalize
+
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