David's score on his fifth test would be an 87. If you add up all the scores from his first to his fourth test, it would 363. However, since there are five tests, in order to get a 90 percent, the sum of all five test scores would be 450. 450 - 363 = 87.
Answer:
∠R = 30°
Step-by-step explanation:
Because QP = QR, it is an isosceles triangle. So ∠R = ∠P
Step-by-step explanation:
first we need to round 1.37 which you get 1.35 then round 0.9 to 1.0 then add them both which you get 2.35
Answer:
Matter in living things may pass into nonliving things.
Step-by-step explanation:
Tan 2 x-2 tan x=0
Tan x (tan x-2 ) =0
A tan x=0 —> x=0 and x =K π
B tan x=2 —> x=63.43 +k180 deg
