The temperature on a summer afternoon is 76°f. define a variable and write an expression to find the temperature after it changes. then evaluate your expression for a decrease of 8 degrees fahrenheit. 76 – c; 76 – (–8) = 84; 84°f 8 – c; 8 – (–76) = 68; 68°f 76 + c; 76 + (–8) = 68; 68°f 8 + c; 8 + (–76) = 84; 84°f

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.

If g^-1(x) is the inverse of g (x) which statement must be true

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how