Answer:
You should have:
a vertex at (1,8)
a y-intercept at (0,6)
a parabola that opens down
and x-intercepts of (-1,0) and (3,0)
Step-by-step explanation:
To get the vertex, you take the number inside the square (h value) and invert the sign for the x value then take the value on the end (k value) and make that the y. For the y-intercept if you let x=0 then the value you get will be the y value at which the graph hits the axis. For the direction in which the parabola opens if the number in front of the square ((x-h)^2 ) is negative it opens down and if it is positive it opens up. For the x-intercepts if you put either number into the function you will get 0.
Answer:
X=65
Step-by-step explanation:
The picture is not very good, but i guess tht x is angle on the section. Right?
If it is true we have that:
The angle formed by two intersection chode is:
X=1/2(30+100)
X=130/2
X=65
1 yard equals 36 inch therefore 6 yard will be 36x6 and 8 yard 36x8
Answer:
Speed of car A = 40 mph
Speed of car B = 50 mph
Step-by-step explanation:
Given:
Distance travelled by car A = 120 miles
Distance travelled by car B = 120 miles
To Find:
speed of each car = ?
Solution:
Let the speed of car A be x
then speed of car B is (x +10)
The Time taken for each car is same
Time taken for car A = Time taken for car B
We know that time = 
Time taken for car A
=>
---------------------------(1)
Similarly
Time taken for car B
=>
-----------------------(2)
Equating (1) and (2), we get
= 

120x + 1200 = 150x
1200 = 150x-120 x
1200 = 30x

x= 40
Speed of car A = 40mph
Speed of car B = (x+10) = (x+40) = 50mph