Using the information given you can set up an equation to find the angle.
Let x = Second angle
Let 4x + 12 = First angle
Angle 1 and 2 should add together to equal 90°. The equation therefore is ,
However the value of x is not for the first angle, it is the value for the second angle. Putting this value unto the first angles equation will give us the actual angle.
The first angle is 93.6°.
Answer:
1. Sine ratio of angle ∠C = 12/13
2. cos ratio for ∠C = 6/10
Step-by-step explanation:
1. sin = perpendicular /hypotuse
=> 12/13
2. cos = base / hypotuse
=> 6/10
Answer:
The answer to your question is:
Step-by-step explanation:
Data
x² + 8x = -4y - 8
x² + 8x + 16 = -4y - 8 + 16
x² + 8x + 16 = -4y + 8
(x + 4)² = -4(y - 2)
(x + 4)² = 4(-1)(y - 2)
Vertex = (-4, 2)
p = 1
Focus = (-4, 1)
Axis of symmetry x = -4
Directrix y = 3
Answer:
y = 40
Step-by-step explanation:
__y_ x 8 = 8 x 5
8
y = 40
Answer:
The slope is $0.35/min and it gives the cost per minute of the phone used.
Step-by-step explanation:
We can model this situation with a linear equation of the form
where 
is monthly cost, 
is the number of minutes, 
is the flat monthly fee, and 
is the slope of the equation, or in our case, the amount of money charged per minute.
The slope is
,
in other words, the phone company charges $0.5 per minute.
With the slope in hand, the linear equation becomes
,
and we can find the monthly fee from that fact that for 300 minutes the cost is $131:
.
Therefore,
where the slope if the equation give the cost per minute of the phone used.
