Answer:
the volume is 530cm^3
Step-by-step explanation:
4*7.5*18
Answer:
11.5 m
Step-by-step explanation:
The problem can be solved using a trig relation that relates the side opposite the angle to the side adjacent to the angle. That relation is ...
Tan = Opposite/Adjacent
The lengths of the adjacent sides of the triangle can be found by rearranging this formula:
Adjacent = Opposite/Tan
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The "opposite" side of the triangle is the height of the tree, which we can represent using h. The problem statement tells us of a relation between adjacent side lengths and angles:
h/tan(25°) -h/tan(50°) = 15 . . . . . moving 15 meters changes the angle
h(1/tan(25°) -1/tan(50°)) = 15
h = 15·tan(25°)·tan(50°)/(tan(50°) -tan(25°)) = 15(0.55572/0.72545)
h ≈ 11.4907 . . . . meters
The height of the tree is about 11.5 meters.
Answer:
If a scatter plot has no association then it's ordered pairs have no predictable pattern.
Step-by-step explanation:
Answer:
Error was CHOOSING the CORRECT hypotenuse in the given sides.
H = 41 units
Step-by-step explanation:
Here, the given sides of the triangle are: 41,40 and 9
Now, as we know in a RIGHT ANGLED TRIANGLE:
The longest side is the HYPOTENUSE.
So, here H = 41
Now, by PYTHAGORAS THEOREM:


Hence, Pythagoras theorem for Right angled triangle is SATISFIED
So, error was CHOOSING the CORRECT hypotenuse in the given sides.
The correct H = 41 units and NOT 40 units.
Answer:
Step-by-step explanation:
cot²(3x)=y
y²-3y+2=0
y²-y-2y+2=0
y(y-1)-2(y-1)=0
(y-1)(y-2)=0
y=1,y=2
cot3x=1
tan 3x=1=tan (π/4)=tan (nπ+π/4)
3x=nπ+π/4=(4nπ+π)/4=(4n+1)π/4
x=(4nπ+1)π/12,n is an integer.
cot 3x=2
tan 3x=1/2
3x=tan^{-1}(1/2)≈26.57°+360n
x≈8.86°+120n