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Tag
o-level
Recent questions tagged o-level
273
views
1
answers
Make \(x\) subject of formula: \(V_2=V_1\left(1-\left(\frac{x}{100}\right)^2\right)\)
Make \(x\) subject of formula: \(V_2=V_1\left(1-\left(\frac{x}{100}\right)^2\right)\)
MathsGee
Platinum
113k
points
MathsGee
asked
Feb 14, 2023
Mathematics
formula
subject
expression
calculate
make
o-level
zimsec
+
–
380
views
0
answers
A rally driver in a competition is expected to cover a distance of \(285 km\) in five hours. Part of the race track is murram while the rest is under repair.
A rally driver in a competition is expected to cover a distance of \(285 km\) in five hours. Part of the race track is murram while the rest is under repair. The drive is...
MathsGee
Platinum
113k
points
MathsGee
asked
Nov 23, 2022
Mathematics
zimsec
o-level
competition
race
distance
measure
maths
+
–
286
views
0
answers
Solve the simultaneous equations \(x+3y=-1\) and \(-3x+6y=8\)
Solve the simultaneous equations \(x+3y=-1\) and \(-3x+6y=8\)
MathsGee
Platinum
113k
points
MathsGee
asked
Nov 23, 2022
Mathematics
equations
simultaneous
equation
zimsec
measure
multiplication
o-level
+
–
248
views
0
answers
Solve the simultaneous equations \(y-3x=5\) and \(2y+3x=28\)
Solve the simultaneous equations \(y-3x=5\) and \(2y+3x=28\)
MathsGee
Platinum
113k
points
MathsGee
asked
Nov 23, 2022
Mathematics
simultaneous
equation
zimsec
measure
multiplication
o-level
equations
+
–
312
views
1
answers
Two students are selected from a class to the quiz team. If one of the student selected is a girl, what is the probability that both the students selected are girls?
Two students are selected from a class to the quiz team. If one of the student selected is a girl, what is the probability that both the students selected are girls? i. \...
MathsGee
Platinum
113k
points
MathsGee
asked
Aug 11, 2022
Mathematics
probability
class
zimsec
venn-diagram
sets
o-level
marbles
+
–
410
views
1
answers
The probability that A speaks truth is \(\frac{4}{5}\), while this for \(B\) is \(\frac{3}{4}\), the probability that they contradict each other when asked to speak on a fact.
The probability that A speaks truth is \(\frac{4}{5}\), while this for \(B\) is \(\frac{3}{4}\), the probability that they contradict each other when asked to speak on a ...
MathsGee
Platinum
113k
points
MathsGee
asked
Jul 28, 2022
AI & Data Science
numbers
questions
calculator
zimsec
fractions
o-level
calculate
+
–
333
views
0
answers
In the diagram, \(\hat{P}=67^{\circ}, \mathrm{PQ}=3 \mathrm{~cm}\) and \(\mathrm{PR}=9,2 \mathrm{~cm}\). Determine the length of \(Q R\).
In the diagram, \(\hat{P}=67^{\circ}, \mathrm{PQ}=3 \mathrm{~cm}\) and \(\mathrm{PR}=9,2 \mathrm{~cm}\). Determine the length of \(Q R\).
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jul 20, 2022
Mathematics
zimsec
o-level
trigonometry
sine
cosine
triangle
tangent
+
–
559
views
1
answers
Suppose that you spin the dial shown in the figure so that it comes to rest at a random position.
Suppose that you spin the dial shown in the figure so that it comes to rest at a random position. Model this with a suitable probability density function, and use it to f...
MathsGee
Platinum
113k
points
MathsGee
asked
Jul 18, 2022
AI & Data Science
zimsec
o-level
velocity
particle
speed
hyperbola
parabola
+
–
698
views
1
answers
A heat pump is to extract heat from an outdoor environment at \(7^{\circ} \mathrm{C}\) and heat the environment indoors to \(27^{\circ} \mathrm{C}\).
A heat pump is to extract heat from an outdoor environment at \(7^{\circ} \mathrm{C}\) and heat the environment indoors to \(27^{\circ} \mathrm{C}\). For each \(15,000 J\...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jul 8, 2022
General Knowledge
zimsec
o-level
math
diagram
bearing
area
quadrilateral
+
–
694
views
0
answers
Given, \(\triangle \mathrm{ABC}\) with \(\mathrm{AB}=5,3 \mathrm{~km}, \mathrm{BC}=7,2 \mathrm{~km}\) and \(\hat{\mathrm{C}}=42^{\circ}\)
Given, \(\triangle \mathrm{ABC}\) with \(\mathrm{AB}=5,3 \mathrm{~km}, \mathrm{BC}=7,2 \mathrm{~km}\) and \(\hat{\mathrm{C}}=42^{\circ}\)1. Calculate the magnitude of \(\...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jul 6, 2022
Mathematics
quadrilateral
diagram
area
zimsec
o-level
math
midpoint
+
–
1.2k
views
0
answers
Among 40 condensers produced by a machine, 6 are defective. If we randomly check 5 condensers, what are the probabilities that
Among 40 condensers produced by a machine, 6 are defective. If we randomly check 5 condensers, what are the probabilities that(a) none are defective;(b) all are defective...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
defective
probability
stopwatch
time
experiment
zimsec
o-level
+
–
828
views
1
answers
what is the probability that both of the workers chosen by the supervisor will be against the new safety regulations?
The supervisor of a group of 20 construction workers wants to get the opinion of 2 of them (to be selected at random) about certain new safety regulations. If 12 workers ...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
probability
zimsec
o-level
people
sets
venn-diagram
class
+
–
560
views
0
answers
Last year; the maximum daily temperature in a plants' server room exceeded \(68^{\circ} \mathrm{F}\) in 12 days. Estimate the probability that the maximum temperature will exceed \(68^{\circ} \mathrm{F}\) tomorrow.
Last year; the maximum daily temperature in a plants' server room exceeded \(68^{\circ} \mathrm{F}\) in 12 days. Estimate the probability that the maximum temperature wil...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
temperature
zimsec
triangle
o-level
probability
maximum
+
–
692
views
1
answers
A car rental agency has 19 compact cars and 12 intermediate-size cars. If four of the cars are randomly selected for a safety check, what is the probability of getting two of each kind?
A car rental agency has 19 compact cars and 12 intermediate-size cars. If four of the cars are randomly selected for a safety check, what is the probability of getting tw...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
probability
zimsec
o-level
class
sets
venn-diagram
people
+
–
864
views
1
answers
To fabricate a new capsule, 2 motors will be randomly selected (that is, each pair of motors has the same chance of being selected). Find the probability that
The next generation of miniaturized wireless capsules with active locomotion will require two miniature electric \({ }^{1}\) motors to maneuver each capsule. Suppose 10 m...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
probability
sets
class
zimsec
venn-diagram
o-level
people
+
–
351
views
1
answers
Solve for \(t\) in \(16-2 t=5 t+9\)
Solve for \(t\) in \(16-2 t=5 t+9\)
MathsGee
Platinum
113k
points
MathsGee
asked
Jun 8, 2022
Mathematics
solve
equation
zimsec
o-level
quadratic
velocity
plane
+
–
761
views
1
answers
What is the probability that of 25 randomly selected students, no two share the same birthday?
What is the probability that of 25 randomly selected students, no two share the same birthday?
AstraNova
Diamond
67.9k
points
AstraNova
asked
May 24, 2022
AI & Data Science
probability
class
zimsec
venn-diagram
sets
o-level
people
+
–
399
views
0
answers
Did climate change cause the dust bowl?
Did climate change cause the dust bowl?
MathsGee
Platinum
113k
points
MathsGee
asked
Apr 23, 2022
General Knowledge
climate
change
triangle
o-level
sine
cosine
zimsec
+
–
718
views
1
answers
\(A, B, C\) and \(D\) are points on the circumference of a circle such that \(A B=B C\). \(A F\) is a tangent to the circle through \(A B C D\) at \(A\).
\(A, B, C\) and \(D\) are points on the circumference of a circle such that \(A B=B C\). \(A F\) is a tangent to the circle through \(A B C D\) at \(A\).Prove:1. \(\trian...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Apr 17, 2022
Mathematics
circle
zimsec
math
o-level
points
circumference
diameter
+
–
798
views
0
answers
What is \(12\dfrac{1}{3}\) percent as a fraction?
What is \(12\dfrac{1}{3}\) percent as a fraction?
AstraNova
Diamond
67.9k
points
AstraNova
asked
Mar 8, 2022
Mathematics
fractions
numbers
zimsec
o-level
questions
+
–
611
views
0
answers
A cup of coffee, cooling off in a room at temperature \(20^{\circ} \mathrm{C}\), has cooling constant \(k=0.09 \mathrm{~min}^{-1} .\)
(a) How fast is the coffee cooling (in degrees per minute) when its temperature is \(T=80^{\circ} \mathrm{C} ?\)(b) Use linear approximation to estimate the change in tem...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Feb 4, 2022
Mathematics
zimsec
o-level
triangle
sine
cosine
temperature
expansion
+
–
523
views
0
answers
Ignoring air resistance, give an expression for the time it takes for a ball to drop \(H\) meters (from rest) under a constant gravitational acceleration \(g\).
In 1939 , Joe Sprinz, a professional baseball player, attempted to catch a ball dropped from a blimp. This was done for the purpose of braking the record for catching a b...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Feb 4, 2022
Mathematics
distance
ping-pong
air-resistance
zimsec
o-level
velocity
speed
+
–
713
views
1
answers
A particle starts from rest (that is with initial velocity zero) at the point \(x=10\) and moves along the \(x\)-axis with acceleration function \(a(t)=12 t\). Find the resulting position function \(x(t)\).
A particle starts from rest (that is with initial velocity zero) at the point \(x=10\) and moves along the \(x\)-axis with acceleration function \(a(t)=12 t\). Find the r...
AstraNova
Diamond
67.9k
points
AstraNova
asked
Feb 4, 2022
Mathematics
zimsec
o-level
hyperbola
particle
velocity
speed
parabola
+
–
389
views
1
answers
The equation of position vs. time for a moving object, in SI units, is as \(x=-t^{2}+6 t-9 .\) Which of the following choices are correct?
The equation of position vs. time for a moving object, in SI units, is as \(x=-t^{2}+6 t-9 .\) Which of the following choices are correct?(a) The object's acceleration is...
MathsGee
Platinum
113k
points
MathsGee
asked
Jan 26, 2022
General Knowledge
velocity
zimsec
particle
o-level
plane
curve
+
–
518
views
0
answers
Factorise \(10 x y^2+52 x y\)
Factorise \(10 x y^2+52 x y\)
MathsGee
Platinum
113k
points
MathsGee
asked
Jan 24, 2022
Mathematics
zimsec
expression
algebra
o-level
completely
factorise
proportion
+
–
445
views
1
answers
Simplify \(\frac{1}{7} \times \frac{9}{16} \times \frac{16}{9} \times \frac{16}{9} \times \frac{9}{16}=\)
Simplify \(\frac{1}{7} \times \frac{9}{16} \times \frac{16}{9} \times \frac{16}{9} \times \frac{9}{16}=\)
MathsGee
Platinum
113k
points
MathsGee
asked
Jan 5, 2022
Mathematics
numbers
fractions
zimsec
integers
o-level
questions
answer
+
–
684
views
0
answers
What is a line graph?
What is a line graph?
MathsGee
Platinum
113k
points
MathsGee
asked
Jan 3, 2022
General Knowledge
line
graph
zimsec
o-level
velocity
+
–
296
views
1
answers
Make \(S\) the subject of the relation \[ \mathrm{p}=\mathrm{s}+\frac{\mathrm{sm}^{2}}{\mathrm{nr}} \]
Make \(S\) the subject of the relation\[\mathrm{p}=\mathrm{s}+\frac{\mathrm{sm}^{2}}{\mathrm{nr}}\]
MathsGee
Platinum
113k
points
MathsGee
asked
Nov 10, 2021
Mathematics
waec
2016
formula
subject
o-level
solve
+
–
373
views
1
answers
Factorise completely: \(75 x-12 x^{3}\)
Factorise completely: \(75 x-12 x^{3}\)
MathsGee
Platinum
113k
points
MathsGee
asked
Nov 9, 2021
Mathematics
expression
zimsec
o-level
exponents
integers
factorise
completely
+
–
521
views
1
answers
Factorise completely: \(x-16 x^{3}\)
Factorise completely: \(x-16 x^{3}\)
MathsGee
Platinum
113k
points
MathsGee
asked
Nov 9, 2021
Mathematics
factorise
completely
expression
zimsec
o-level
exponents
integers
+
–
660
views
0
answers
A map is drawn to a scale of 1:75000. This scale can be expressed as \(1cm\) respresents \(n \mathrm{~km}\). Find \(n\).
A map is drawn to a scale of 1:75000. This scale can be expressed as \(1cm\) respresents \(n \mathrm{~km}\). Find \(n\).
Student
Bronze Status
5.8k
points
Student
asked
Sep 27, 2021
Mathematics
distance
map
zimsec
area
o-level
drawn
airport
+
–
797
views
0
answers
A learner did a project on climate change At 14: 00 each day, she record ed the temperature (in \(\left.{ }^{\circ} \mathrm{C}\right)\) for a certain town. The information is given in the frequency table below.
A learner did a project on climate change At 14: 00 each day, she record ed the temperature (in \(\left.{ }^{\circ} \mathrm{C}\right)\) for a certain town. The informatio...
Student
Bronze Status
5.8k
points
Student
asked
Sep 27, 2021
Mathematics
triangle
zimsec
o-level
sine
cosine
+
–
832
views
0
answers
Express 80 as a product of primes.
Express 80 as a product of primes.
Student
Bronze Status
5.8k
points
Student
asked
Sep 27, 2021
Mathematics
product
factors
numbers
prime
express
zimsec
o-level
+
–
645
views
1
answers
Show that \(\overrightarrow{P Q}\) is perpendicular to \(\overrightarrow{R S}\)
(a) Given that \(m=(6 i+8 j)\) and \(n=\left(-8 i+\frac{7}{3} j\right)\), find the :(i) magnitudes and direction of \(\mathrm{m}\) and \(\mathrm{n} ;\) (ii) angle between...
MathsGee
Platinum
113k
points
MathsGee
asked
Sep 12, 2021
Mathematics
o-level
zimsec
midpoint
coordinates
vector
column
class
+
–
393
views
1
answers
What number did she think of?
Boguslawa thinks of a number.She trebles the number.She then subtracts 8 .Boguslawa's answer is 16 .What number did she think of?
MathsGee
Platinum
113k
points
MathsGee
asked
Sep 10, 2021
Mathematics
zimsec
grade-7
fractions
o-level
percentage
philippines
proportion
+
–
1.0k
views
1
answers
Suppose the position of an object at time $t$ is given by $f(t)=-49 t^{2} / 10+5 t+10 .$ Find a function giving the speed of the object at time $t .$
Suppose the position of an object at time $t$ is given by $f(t)=-49 t^{2} / 10+5 t+10 .$ Find a function giving the speed of the object at time $t .$ The acceleration of ...
MathsGee
Platinum
113k
points
MathsGee
asked
Aug 14, 2021
Mathematics
zimsec
o-level
velocity
rest
particle
plane
curve
+
–
276
views
1
answers
What is a linear equation?
What is a linear equation?
Maths-Genie
Bronze Status
9.4k
points
Maths-Genie
asked
Aug 9, 2021
Mathematics
linear
equation
zimsec
o-level
solve
+
–
690
views
1
answers
Solve the linear equation: $3(x+2)-2(1-x)=4 x+5$
Solve the linear equation: $3(x+2)-2(1-x)=4 x+5$
MathsGee
Platinum
113k
points
MathsGee
asked
Jul 22, 2021
Mathematics
solve
equations
equation
zimsec
o-level
algebra
calculate
+
–
369
views
1
answers
Solve the linear equation: $-x-7=-3 x-9$
Solve the linear equation: $-x-7=-3 x-9$
MathsGee
Platinum
113k
points
MathsGee
asked
Jul 22, 2021
Mathematics
equation
solve
simultaneous
zimsec
o-level
numbers
measure
+
–
444
views
1
answers
Express $b \times b \times b \times b \times b$ in exponential form:
Express $b \times b \times b \times b \times b$ in exponential form:
MathsGee
Platinum
113k
points
MathsGee
asked
Jun 27, 2021
Mathematics
zimsec
math
integers
form
algebra
functions
o-level
+
–
752
views
1
answers
$\dfrac{2^{2016}+2^{2017}+2^{2018}+2^{2019}}{2^{2017}+2^{2018}+2^{2019}+2^{2020}}$ is equal to
$\dfrac{2^{2016}+2^{2017}+2^{2018}+2^{2019}}{2^{2017}+2^{2018}+2^{2019}+2^{2020}}$ is equal to
Edzai Zvobwo
Bronze Status
6.2k
points
Edzai Zvobwo
asked
Jun 26, 2021
Mathematics
calculate
remainder
zimsec
o-level
fractions
answer
+
–
741
views
1
answers
$1+\dfrac{1}{2+\dfrac{1}{3+\dfrac{1}{4}}}$ is equal to
$1+\dfrac{1}{2+\dfrac{1}{3+\dfrac{1}{4}}}$ is equal to
Edzai Zvobwo
Bronze Status
6.2k
points
Edzai Zvobwo
asked
Jun 26, 2021
Mathematics
repeated
fraction
fractions
zimsec
o-level
answer
+
–
319
views
0
answers
If a taxpayer paid $\$ 28,925.35$ in federal tax, what was her gross annual income for 2011?
In 2011 , Canadian federal tax rates were $0 \%$ on the first $\$ 10,527$ of gross income earned, $15 \%$ on the next $\$ 31,017,22 \%$ on the next $\$ 41,544,26 \%$ on t...
Maths-Genie
Bronze Status
9.4k
points
Maths-Genie
asked
Jun 17, 2021
Mathematics
zimsec
multiplication
equation
simultaneous
o-level
measure
price
+
–
365
views
1
answers
Solve the linear equation $\frac{3 m}{4}+2 m=4 m-15$
Solve the linear equation $\frac{3 m}{4}+2 m=4 m-15$
Maths-Genie
Bronze Status
9.4k
points
Maths-Genie
asked
Jun 17, 2021
Mathematics
equation
numbers
zimsec
o-level
measure
simultaneous
multiplication
+
–
424
views
1
answers
Solve for $x$: $9^{x+1}=27^{x}$
Solve for $x$: $9^{x+1}=27^{x}$
Student
Bronze Status
5.8k
points
Student
asked
Jun 14, 2021
Mathematics
equation
exponents
zimsec
o-level
integers
logarithms
+
–
677
views
1
answers
Express $9^{x-1}+3^{2 x}$ as a single power expression.
Express $9^{x-1}+3^{2 x}$ as a single power expression.
Student
Bronze Status
5.8k
points
Student
asked
Jun 14, 2021
Mathematics
integers
zimsec
o-level
answer
numbers
fractions
questions
+
–
329
views
1
answers
The Indiana State Police wish to estimate the average mph being traveled on the Interstate Highways, which cross the state.
The Indiana State Police wish to estimate the average mph being traveled on the Interstate Highways, which cross the state. If the estimate is to be within $\pm 5$ mph of...
MathsGee
Platinum
113k
points
MathsGee
asked
Jun 14, 2021
AI & Data Science
zimsec
calculate
cooking
measurements
o-level
flour
converting
+
–
942
views
0
answers
Alizon is making pancakes with the same recipe requiring $\frac{3}{4}$ cups of flour. She wants to make half a recipe. She estimates that a $\frac{1}{2}$ cup of flour is needed. Is that an underestimate or an overestimate?
Alizon is making pancakes with the same recipe requiring $\frac{3}{4}$ cups of flour. She wants to make half a recipe. She estimates that a $\frac{1}{2}$ cup of flour is ...
Student
Bronze Status
5.8k
points
Student
asked
Jun 7, 2021
Mathematics
calculate
measurements
converting
cooking
o-level
zimsec
flour
+
–
337
views
0
answers
Kaymin and Shaquiel are making pancakes. One full recipe requires $\frac{3}{4}$ cups of flour. They wish to double the recipe. How many cups of flour do they need?
Kaymin and Shaquiel are making pancakes. One full recipe requires $\frac{3}{4}$ cups of flour. They wish to double the recipe. How many cups of flour do they need?
Student
Bronze Status
5.8k
points
Student
asked
Jun 7, 2021
Mathematics
calculate
converting
cooking
measurements
o-level
zimsec
flour
+
–
402
views
1
answers
Solve the quadratic equation $3 x^{2}+2 x-8=0$
Solve the quadratic equation $3 x^{2}+2 x-8=0$
Maths-Genie
Bronze Status
9.4k
points
Maths-Genie
asked
Jun 1, 2021
Mathematics
equation
solve
algebra
zimsec
o-level
quadratic
square
+
–
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