Esme says the two expressions 4x - 5.2y + 6y + 7.9x - 8x and 19.9x + 11.2y are equivalent. Is she correct? Explain how you know. If she is incorrect, provide the correct response in standard form.

No, she's incorrect. 4x - 5.2y + 6y + 7.9x - 8x = 3.9x + 0.8y

Step-by-step explanation:

To find out if Esme is correct, we have to group the like terms and simplify.

As you can see, 3.9x + 0.8y is the correct simplified expression, thus making Esme incorrect.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

(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