Search
b. Show on the real line and indicate in symbols each of the following:
S₁= {x: -7 < x < ∞ } ∩ {x: -∞ < x < 3}
S₂= (x:x ≥ ∞ } ∩ (x: x+ 3 < 6}
S3 = y: y²-2 y-3 < 0} U {y: -2 ≤ y ≤ 1}
Determine the production cost of 7 devices, if labour amounts to R4 140 ,computing
Components cost is R1035 and the savings on reusable material is R1725
Ayana has $2.35 in nickels and dimes. If she has 33 coins in all, find the number of nickels and dimes
The production cost, represent by y, of smart phone devices are equal to the product of computing components (a) and the square of the number of devices (x), added to the product of labour (b) and number of devices (x); after which savings on reusable material (c) are subtracted
Write down an equation to represent the production cost (y) in terms of a, x, b and c
In a country there are 48000 people in the defence services. They work in the army, navy and air force in the ratio 5:2:3 . how many people are in each service?
find the value of x,
x2+2x+1=0
A group of five boys and eight girls go to the fair. Admission cost nine dollars per person. Which expression does not show the total amount group will pay?
A construction crew is lengthening a road that originally measured 41
miles. The crew is adding one mile to the road each day.
Let
L
be the length (in miles) after D
days of construction. Write an equation relating
L
to D
.Then use this equation to find the length of the road after 37
days
Draw Dienes blocks to show how to find solution to
78+54
102-45
prepare a line graph
monday 150
tuesday 250
wednesday 200
thursday 140
friday 210
saturday 380
sunday 450
