Answer:
the y intercept is -50
Step-by-step explanation:
in y=mx+b, m is the slope and b is the y intercept. We are given the point (900,1150) and a slope of 4/3
we can susbstitute 4/3 into the equation.
y=4/3x+b
since the line will go through the point (900,1150), we can plug it into the equation.
1150=4/3(900)+b
1150=1200+b
-50=b
we are left with the y intercept (b) being -50. As a point, it's (0,-50)
Hope this helps!
Answer:
Step-by-step explanation
Given
Zoe practices the piano 812 minutes in 4 weeks
4 weeks=7×4
=28 days
she practice, in minutes per day=812/28
=29 minutes
So she practices 29 minutes per day
The equation of the graph is C.
Answer:
x = 13.9
Step-by-step explanation:
With respect to the angle shown, we have the hypotenuse (the side opposite the 90 degree angle) and we have the adjacent side (which is the side labeled x). thus we can use the ratio "cosine" to solve this.
<em>The ratio of cosine is defined as:</em>
Where adjacent and hypotenuse are the respective sides and 
is the angle
<em>Thus, we can now write:</em>
The first answer choice is right, x = 13.9
