Answer:
14
Step-by-step explanation:
Since S is the midpoint of RT, then RS = ST
RS = RT - ST = (3x + 7) - (x + 7) = 3x + 7 - x - 7 = 2x
so we get that RS = 2x
but since RS = ST, and RS=2x & ST=x+7
then 2x = x + 7
2x-x = 7
x = 7
ST = x+7 = 7+7 = 14
P.S. Hope it makes sense. If you have any questions, feel free to ask them in the comments senction. I'll be happy to help. Have a wonderful day!
Answer:
The midpoint of the given coordinates is
.
Step-by-step explanation:
We have given two coordinates (3,15) and (20,8).
Let we have given a line segment PQ whose P coordinate is (3,15) and Q coordinate is (20,8).
We have to find out the mid point M(x,y) of the line segment PQ.
Solution,
By the mid point formula of coordinates, which is;

On substituting the given values, we get;

We can also say that 
Hence The midpoint of the given coordinates is
.
Answer:
i. x and a are increasing while y and b are reducing
Answer:
As the slope is -2, so the rate of change of the function is:
- rate of change of function = -2
Step-by-step explanation:
The slope is basically the rate of change of a function.
Let us take the two points from the graph
Taking the slope between two points to determine the rate of change of a function



As the slope is -2, so the rate of change of the function is:
- rate of change of function = -2
Part A:
13²-5²=c
169-25=144
√144=12
Your height is 12.
Part B:
Base:
20(10)=200
Two triangular faces:
5(13)=65
65(2)=130
Rectangular faces:
20(13)=260
260(2)=520
200+130+520=850
They would need 850 cm of cardboard.
Hope this helps! Have an amazing day!