Ashape is made of 12 right triangles of equal size. each right triangle has a base of 4 cm and a height of 5 cm. what is the total area, in square centimeters, of the shape?

The total area of the shape is

Step-by-step explanation:

step 1

Find the area of one right triangle

The area of a triangle is equal to

we have

substitute

step 2

To find the total area of the shape multiply the area of one triangle by 12

so

up

step-by-step explanation:

the orientation of the parabolas can easily be found by analysing the power of x and y and their signs. if x is squared , parabola opens up and also if its coefficient is negative it opens down. if y is squared , the parabola opens right and also if its coefficient is negative it opens left. however in order to do the above analysis our equation must be in standard form .

our parabola is

which is not standard form of any parabola . hence we square on both hand side and convert it into standard form.

hence we see that x is squared and its coefficient is non negative . there for it opens up.

7

step-by-step explanation: