The temperature at a mountain base camp was −2 degrees celsius on thursday. friday morning, the temperature was 1 degree celsius lower than what it was on thursday. by friday evening, the temperature was 3 degrees celsius lower than what it was that morning. what was the temperature at the base camp friday evening? −9 degrees celsius −8 degrees celsius −7 degrees celsius −6 degrees celsius

Thursday: -2 deg C

Friday morning, 1 deg C lower: -2 deg C - 1 deg C = -3 deg C

Friday evening: 3 deg C lower: -3 deg C - 3 deg C = -6 deg C

-6 deg C

(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