Answer: 1.5 meters
Step-by-step explanation:
Given: A lake near the Arctic Circle is covered by a sheet of ice during the cold winter months. S
S(t) models the ice sheet's thickness (in meters) as a function of time t (in weeks)
if we put x=0, then
So 4 meters is the initial thickness
To find the thickness after 6 weeks, put x=6 we get
Decrease in thickness every 6 weeks=
Answer:
<B = 70°
Step-by-step explanation:
First we need to find x, lets plugin these two equations.
2x - 30 = x + 20
Then find like terms
2x = x + 50 =
x = 50
Then we plugin 50 for x
2(50) - 30 =
100 - 30 = 70
<B = 70°
Answer:
complementary, x=60
Step-by-step explanation:
complementary angles add up to 90 degrees.
90= x + x- 30
2x= 120
x= 60
The correct answer is A. The commutative property says that we can swap number when we add. More exactly... it means that a+b=b+a => -13+27=27+(-13)= 14
Use the formula (x,y) to (-y,-x) and do that to all the points