Which of the following statements regarding Pascal's triangle are correct? A. Pascal's triangle can be used to expand binomials with positive
terms only.
B. The nth row gives the coefficients in the expansion of (x + y)”.
C. The nth row gives the coefficients in the expansion of (x + y))-1.
D. The method for generating Pascal's triangle consists of adding
adjacent terms on the preceding row to determine the term below
them.

The answers are B and D

answer: check all that apply, where the options?

step-by-step explanation:

60%

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

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.