1. 30 + 30
2. 20 + 40
3. 12 * 5
4. 300/5
(Bonus)
5. 10 + 50
Answer:
Given, DF and DE are midsegments of ABC. so D is the mid point of AB and F is the mid point of AC.
Considering AB,
Then DE is parallel to AC, as mid-segments are parallel to the non included side of the triangle.
Also, according to corresponding angle theorem,
Then,
As,
According to similarity of two triangles,
Answer:
Part 1) The rate of change is
Part 2) The initial value is 68
Part 3) The function rule to the linear model is 
Step-by-step explanation:
we know that
The linear equation in slope intercept form is equal to

where
m is the slope or unit rate
b is the y-intercept or initial value
step 1
Find the slope
take two points from the table
(0,68) and (15,85)
The formula to calculate the slope between two points is equal to
substitute the values
In a linear function , the slope is the same that the rate of change
therefore
The rate of change is
step 2
Find the y-intercept
we know that
The y-intercept is the value of y when the value of x is equal to zero
Looking at the table
For x=0, y=68
therefore
The y-intercept is
The y-intercept is also called the initial value
therefore
The initial value is 68
step 3
Determine the function rule to the linear model

we have
substitute

Answer:
Solution and how to convert 8 / 21 into a percentage
0.38 times 100 = 38.1. That's all there is to it!
Step-by-step explanation:
hope this helps
Answer:
35
Step-by-step explanation:
just divide em