1/9
Here's the proper explanation:
Since the vertex is (2,-1), the original equation will look like this: y=a*(x-2)^2-1
When the substitution happens we get to this:
0=a*(5-2)^2-1 then 1=a*(5-2)^2 -> 1=a*9
So, a=1/9! Written in another form:
1/9x^2-4/9x+4/9-1
Hope could help :)
Answer:
C
Step-by-step explanation:
Given
V = πr²h
Isolate h by dividing both sides by πr²
= h → C
Answer:
A
Step-by-step explanation:
All pieces of data for seventh grade classes are larger than that of any kindergarten class on the table. This also proves with the mean provided.
The MAD, mean absolute deviation, helps you to identify the variation. The MAD for seventh grade was significantly larger than that of the kinder classes. The range for both sets of data is two times one another, further proving that 7th grade classes varies more.
C and D are irrelevant, and B says "varies less" which is the opposite of what's going on.
Hope that helps!
Answer:
2²×3³
Step-by-step explanation:
162 can we shown as:
81*2=162 as 2 is prime we leave it out and focus of 81:
18*3=81 we leave out 3:
3*6=18 we leave out 3 again:
3*2=6
so our answer is 2*2*3*3*3 which in index form is 2²*3³ as there are two 2s and three 3s.
Blue: yellow = 3:2 = 6:4
Ten gallons of green will need 4 gallons of yellow
