In triangle b. we know that tan(x) = Opposite side to x angle / Adjacent side to angle x.
By substituting in above formula,
tan(x) = 12/5 = 2.4
x = tan^-1(2.4) = 68 degrees.
And in triangle a. i am not clear with the angle. Is it 51 or any other?
Answer:
Step-by-step explanation:
Problem One
Blue = 5
Black =2
Red = 3
First of all there are 10 marbles, 2 of which are black.
That means that 8 others are not black
You can draw any one of the 8.
P(not black) = 8/10 = 4/5
Problem Two
There are 10 marbles in all
3 of them are red.
P(Red) = 3/10
Answer:
16.6
Step-by-step explanation:
Answer:
y-2=0
Step-by-step explanation:
In y=mx+b
m=(y2-y1)/(x2-x1) [2]
Or another way of thinking about it is rise over run.
define point (-1,2) as x1,y1
define point (5,2) as x2,y2
substitute into formula [2]
m=(2-2)/(5-(-1))
We know that 2-2=0 therefore the slope (m) is 0
y=0x+b
Or simply
y=b
to solve for b we substitute into the formula any of the points
2=b for y1
or 2=b for y2
b=2
therefore y=2
to convert it into general form make the equation equal 0
y-2=0
Answer: C
Step-by-step explanation: