Answer:
they would be about an hour
Step-by-step explanation:
Answer:
x=2, y=6
Step-by-step explanation:
y=10-2x
x=y-4
substitute x
y=10-2(y-4)
y=10-2y+8
Add 2y to each side
3y=10+8=18
y=6
x=y-4
x=6-4=2
x=2
a tree casts a 25-foot shadow on sunny day. If the angle of elevation from the tip of the shadow to the top of the tree is 32 degree, what is the height of the tree to the nearest tenth of a foot?
Tan(32)=H/25
0.624869=H/25
H=.624869 X 25
H=15.6 feet-Height of the tree.
Step-by-step explanation:
look at the picture !
she has to paint actually 6 rectangles :
the 3 tops of the 3 stairs.
and the 3 vertical front boards (the front of each step of the stairs).
what is the area of these rectangles ? summing up all 6 - that is the surface area to be painted.
each top rectangle is clearly
82×19 (19 cm deep) = 1558 cm²
each front board is
82×12 (12 cm high) = 984 cm²
so, in total we have
3×1558 + 3×984 = 4674 + 2952 = 7626 cm²
as surface area to be painted.
Answer
true
Step-by-step explanation:
Divide the total earnings for the workweek, including earnings during overtime hours,
