Assume a program has the following variable defenition: int a, b =2; float c = 4.2; and the following statement: a = b * c; what will be stored in a? a. 8.4 b. 8 c. 0 d. none of the above

The correct option is B.

Step-by-step explanation:

In a program the variables are defined as

int a, b =2;

float c = 4.2;

The given statement is

a = b * c

a = 2 * 4.2

a = 8.4

It is given that variable a is an integer. So, only integer value can be stored in a.

a ≈ 8

It means 8 will be stored in a. Therefore the correct option is B.

1.0

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.