A piling for a high-rise building is pushed by two bulldozers at exactly the same time. One bulldozer exerts a force of 1250
pounds in a westerly direction. The other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. What
is the magnitude of the resultant force upon the piling, to the nearest ten pounds?
a. 2340 lbs.
C. 3900 lbs.
b. 2670 lbs.
d. 2930 lbs.

step-by-step explanation:

43

step-by-step explanation:

b, i believe, but not sure.

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.