Solve the simultaneous equations 3
x
+
4
y
=
30
3
x
−
y
=
15

The solution for given system of equations is: x = 6 and y = 3

Or

(6,3)

Step-by-step explanation:

Given equations are:

There are three methods to solve simultaneous equations

We will use the elimination method as the coefficients of x in both equations are already same

Subtracting equation 2 from equation 1

Putting y = 3 in equation 2

Hence,

The solution for given system of equations is: x = 6 and y = 3

Or

(6,3)

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation:

it is rigid.; it is isometric. ; the size is preserved.

step-by-step explanation:

a translation is called an isometry; these are transformations that preserve congruence between pre-images and images.

they are also called rigid transformations, as the only thing that can happen to a pre-image is that it is moved or turned, not stretched or shrunk.

since congruence is preserved, the size is preserved.