9514 1404 393
Answer:
b. y = (x - 5)² - 4
Step-by-step explanation:
Here, we take "standard form" to mean "vertex form."
In the US, "standard form" would be ...
y = x² -10x +21
Vertex form is ...
y = (x -5)² -4 . . . . matches B
Answer:
17
Step-by-step explanation:
it would technically be 16.5 because if u do 1,900/115=16.521739043 but just round it up to 17 so there you go I hope this helps you
Answer:
200 units.
10 minutes.
Step-by-step explanation:
Distance = 100 - (-100)
= 100 + 100
= 200 units.
Speed = distance / time
20 = 200/ t
t = 200/20
= 10 minutes.
Answer:
4 pages per hour
Step-by-step explanation:
Willie and Pedro are reading the same book. Willie read 108 pages in 3 hours, and Pedro read 160 pages in 5 hours.
We find how many pages per hour each of them read.
For Willie
Willie read 108 pages in 3 hours,
3 hours = 108 pages
1 hour = x
Cross Multiply
3x = 108 pages × 1 hours
x = 108 pages/3
x = 36 pages per hour
For Pedro
Pedro read 160 pages in 5 hours
5 hours = 160 pages
1 hour = x
Cross Multiply
5x = 160 pages × 1 hours
x = 160 pages/5
x = 32 pages per hour.
How many more pages per hour did Willie read?
This is calculated as:
36 pages/hour - 32 pages per hour
= 4 pages per hour
Answer:
-4x^2 + 3x +1 & it would be C. quadratic trinomial
Step-by-step explanation:
1: <u>Remove the parenthesis. Switch the -1 to a +1</u>.
8x^2 + 3x - 12x^2+1
2: <u>Simply the equation</u>.
8x^2 + 3x - 12x^2+1
(2a. Group like terms)
= 8x^2 -12x^2+3x+1
(2b. Add the similar elements)
= -4x^2 + 3x + 1
So you would minus 12x^2 and 8x^2 to get 4x^2!
