77(7) = 539, the total points of all her tests
539 - 18 + 81 = correct total points = 602
602/7 = 86 which is the new average
Answer:
x = 1.5
Step-by-step explanation:
using the sine ratio in the right triangle and the exact value
sin60° =
, then
sin60° =
=
=
( cross- multiply )
2x = 3
( divide both sides by 2 )
x = 1.5
402% as a percent and 4.02 as a decimal. Its Friday so sorry if im wrong
Answer:
Exponential decay
Step-by-step explanation:
the answer is not linear decrease cause the price doesn't decrease the same every year
.. ..
5*2=10
10+12*4.5=64cm^2
Hope it helps