Answer:
3
Step-by-step explanation:
Answer:
I got a
Step-by-step explanation:
Answer:
a = 5
Step-by-step explanation:
Since the triangle is right use the sine ratio to solve for a and
sin30° = 
, thus
sin30° = 
= 
, hence
= ( cross- multiply )
2a = 10 ( divide both sides by 2 )
a = 5
When the expression has only one KIND of a variable, and also only one kind of a lonely number.
A lonely number is a number that has no variable next to it. Their need to be one kind of it.
Example of a simple expression:-
16c + 3
Answer:
Area = 16
Step-by-step explanation:
The plan is to find the area of the large triangle (blue and white together) and subtract the white triangle's area.
Area of blue + white.
h = 8
b = 5 + 4
b = 9
Area = 1/2 * 8 * 9
Area = 1/2 * 72
Area = 36
===============
Area of white.
h = 8
b = 5
Area = 1/2 * 8 * 5
Area = 20
==============
Area of the shaded region (blue) = Area of both triangles - Area of the white
Shaded = 36 - 20
Shaded = 16
