Answer:
(2x+5)(x+4)
Step-by-step explanation:
After factoring we can find that it equals
(2x+5)(x+4)
Midpoint of line AD = (-7+1) ÷ 2
= -6 ÷ 2
= -3
The midpoint of AD is -3.
Answer:
26 mph
Step-by-step explanation:
First find the time Adrian takes to get to school
I found it easiesT to use the method of ratio and proportion
40:60
16:x
x= 16 x 60 / 40 = 24 minutes
So, he has 60-24 minutes to return home, that is 36
What is his speed if his time is 36 minutes= 0.6 hours
Speed = Distance divided by time = 16/0.6 = 26.6 miles per hour.
Hope this helps
Good Luck
Answer:
120
Step-by-step explanation:
Given that ABCD is a parallelogram.
We know that in a parallelogram diagonals bisect each other.
Since AC and BD intersect at E, we get E is the mid point of both AC and BD.
Or BE = ED
Substitute the given values for BE and ED
![x^2-40 = 6x\\x^2-6x-40=0\\(x-10((x+4) = =0](https://tex.z-dn.net/?f=x%5E2-40%20%3D%206x%5C%5Cx%5E2-6x-40%3D0%5C%5C%28x-10%28%28x%2B4%29%20%3D%20%3D0)
i.e. x =10 or x =-4
But x cannot be negative . So x can take only value 10
BE = DE =6x = 6(10) = 60
Diagonal BD = BE+DE = 60+60 = 120
Answer is 120