If P+Q+R =180°, prove that cos(Q+R-P) + COS(R+P-Q) + COS (P+Q-R) = SIN^2 P + 4 COSP COSQ COSR + COS^2 P​

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.

something over 10 so ? /10

step-by-step explanation: