A
Explanation: I guessed and it was right
C.6 i think, sorry if it’s wrong but my reasoning was that 50 + 58 = 108 and the interior of a triangle is 180 degrees so then you would subtract 180 - 108 = 72, then i did some guess work plugging in the different answers into the equation and 11 x 6 + 6 = 72 which was the missing angle from before
Answer:
Option A
10.5 m²
Step-by-step explanation:
The area of a triangle is half the product of its base by its height.

Where b is the base and h is the height.
In this triangle b = 6.1 m.
The height of this triangle is a line perpendicular to its base that goes to the vertex opposite the base.
We do not know this length. But this line h divides the triangle into two rectangular triangles.
So for these two triangles the angle that is opposite to the height h is: 47 °
Therefore we know that senx is defined as:

Where:
Opposite side = h
hypotenuse = 4.7 m
x = 47

Finally, the area is:

Answer:
h(-3)=-1
Step-by-step explanation:
h(x)=-3x - 10
Let x = -3
h(-3)=-3(-3) - 10
= 9-10
=-1
Answer:
4/5.
Step-by-step explanation:
The right triangle with this angle in it has sides 3, 4 and 5. ( 5^2 = 3^2 + 4^2).
So as sin∅ = 3/5, the opposite side to angle ∅ is 3 , the hypotenuse is 5 and the adjacent side must be 4 units long.
So cos∅ = adjacent side/hypotenuse = 4/5.