Which expression can you simplify by combining like terms?

A. 6d2+5cd−3dc+8
B. 12c2−8d2c+3dc+4
C. 7d2−3c2+6d−c
D. 16c2+8cd+7c−8d

The Correct Answer is A. 6d2+5cd−3dc+8

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180