Math Answers

Delisile spends 30% if her income on rent and 50% of the remaining on food and travelling. She pays R2 200,00 per month for education and now has R3 120,00 left. Her monthly income is?

The area of a circle is calculated as πr squared. A square sheet of metal has sides 2p. The circle fits perfectly into the square : The area between the square and the circle is?

Which of the following is not true for real number e,f and g? 1 if e >0, then 1/e >0. 2. If e < f, then eg < fg. 3. If e < 0, then e squared >0. 4. If 0 < e < 1, then e squared < e

A home security system has a pad with 9 digit (1 to 9 ). Find the number of possible 5-digit pass code if digit can be repeated or if digit cannot be repeated

The basement for a house is being excavated and the rectangular hole measured 11m by 14,5m by 4m. The soil is being hauled away in a dump truck which has a an open- box bed of 4m by 3m by 200cm. The truck can't be overloaded at anytim. How many trips will the dump truck have to make to haul away all the soil?

A shipment of five computer contains two that are slightly defective. If a retailer receive three of computers at random,list the elements of the sample paces using the letters D and N for defective and non-defective computers, respectively.to each sample point assign a value of X of the random variable X representing the numbers computers purchased by the retailer which are slightly defective

In the Cartesian plane, two vertices of a square have coordinates (3 ; 4) and ( -2 ; - 1). One of the other two vertices, has coordibates

A straight line passes through the points (2; -3) and (4 - 4). The coordinate of the x intercept of this line is ?

1.     The Hardrock Concrete Company has plants in three locations and is currently working on three major construction projects, each located at a different site. The shipping cost per truckload of concrete, daily plant capacities, and daily project requirements are provided in the table below.

A jewellery store sells beads necklaces.Each necklace cost R40 for the wire and R15 per bead.There exists a linear relation between the cost if the necklace and the number of beads the necklace has.The cost,C is dependent on the number of beads,n. The graph that represents this relation correctle is?