Answer:
He has 151 pages left in his book
Step-by-step explanation:
Saturday
1 hr = 38 pg
3.5 x 38 = 133
Sunday
1 hr = 44 pg
3.5 x 44 = 154
pages read
133 + 154 = 287
starting amount 438
438 - 287 = 151
Answer:
5minus 2 or 2 minus 5 i start
Answer:
n = -2
Step-by-step explanation:
-5(6n+6) = 30
-30n-30 = 30
-30n = 30+30
-30n = 60
-n = 60/30
-n = 2
n = -2
Answer:
The height of the tree in 2020 was of 19.63 feet.
Step-by-step explanation:
Exponential equation for growth:
The exponential equation for the growth of an amount has the following format:

In which H(t) is the amount after t years, H(0) is the initial amount and r is the growth rate, as a decimal.
A 4 foot tree was planted in 2012 outside a high school.
This means that 
The tree grew continuously by 22% each year from that point.
This means that 
Find out what the height of the tree was in 2020.
2020 is 2020 - 2012 = 8 years after 2012, so this is H(8).




The height of the tree in 2020 was of 19.63 feet.
The third graph represents a function.
In a function, every input (x value) has <em>exactly</em> one output (y value). If even a single input has zero or two outputs, the graph does not represent a function.
A good way of testing this is using a vertical line. As you move a vertical line from left to right across a graph, it should always be touching exactly one point on the graphed line.
In this case, every graph fails this vertical line test except for the third graph, so the third graph represents a function.