Answers:
x = 4
EF = 14
CF = 7
EC = 7
-------------------------------------------------------------
-------------------------------------------------------------
Work Shown:
C is the midpoint of segment EF. This means that EC = CF. In other words, the two pieces are congruent.
Use substitution and solve for x
EC = CF
5x-13 = 3x-5
5x-13+13 = 3x-5+13
5x = 3x+8
5x-3x = 3x+8-3x
2x = 8
2x/2 = 8/2
x = 4
Now that we know that x = 4, we can use this to find EC and CF
Let's compute EC
EC = 5x - 13
EC = 5*x - 13
EC = 5*4 - 13 ... replace x with 4
EC = 20 - 13
EC = 7
Let's compute CF
CF = 3x - 5
CF = 3*x - 5
CF = 3*4 - 5 ... replace x with 4
CF = 12 - 5
CF = 7
As expected, EC = CF (both are 7 units long).
By the segment addition postulate, we can say EC+CF = EF
EC+CF = EF
EF = EC+CF
EF = 7+7
EF = 14
Ok do in the first you have to do a darwin’s if what 87 and i don’t know more
Answer:
If the slope is 3/5, then we should count 3 squares up and 5 squares to the right.
Step-by-step explanation:
You can find the slope with rise/run.
Answer:
The LCM of 3,5,9 3 , 5 , 9 is the result of multiplying all prime factors the greatest number of times they occur in either number. The LCM of 3,5,9 3 , 5 , 9 is 3⋅3⋅5=45 3 ⋅ 3 ⋅ 5 = 45 .
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
We are given that:
For all real numbers and they form a region R that is bounded from x = 1 to x = 7. A table of values is given.
We are directed to use a Right Riemann Sum to find the area between the curves of f and g.
Since f is greater than g for all values of x, to find the approximate area between f and g, we can first find the area of f and then subtract the area of g from f.
Using a Right Riemann Sum, the area of f is approximately:
(We multiply the width between each x-coordinate by the right endpoint)
And the area of g is approximately:
Therefore, the area between them will be:
Our answer is B.
