19 weeks, 325-40=285 285/15=19
Hello there!
Knowing that the vertex form of the quadratic equation is
y=a(x-h)^2+k where (h,k) represents the vertex, and the a value represents the leading coefficient of the quadratic equation in standard form, first plug in your known values (your given coordinate point can be plugged into the x and y values, and your given vertex can be plugged into h and k):
-4=a(0-10)^2-9
Because your a value is still unknown, you can use your given values in the equation to solve for a:
-4=a(-10)^2-9
-4=100a-9
100a=5
a=1/20
Now that you have your a value, you can plug it into your vertex form as well as your vertex values to get that your equation in vertex form is:
y=1/20(x-10)^2-9
<em>Hello your answer is down below!!</em>
D. Closed circle on 8, shading to the right.
<em>Short Explanation: </em>
x-3>=5
x>=8
This means that x can be any number larger than 8, with 8 included.
(because it was greater than OR EQUAL TO) and shading on the right (GREATER THAN)
Answer:
C
Step-by-step explanation:
when you solve this it is x>10.
< and > is the open hole and x is greater than -10 so it will be going right.
hope this helped :)
Answer:
28meters and 112meters
Step-by-step explanation:
one piece is x
the other is 4x
therefore; 4x+x=140
5x= 140
divide both sides by 5
x=28
4x=4(28)
=112
