2n-5=7
Twice a number, n, is shown by multiply two and n. Then, you subtract this amount by five.
3.9
Hope that helps
You can use the app math.way also
Answer:
x = 3
< D = 26
< E = 54
Step-by-step explanation:
I did the math
Answer:
Yes.
Step-by-step explanation:
You can find it out by factoring but ill do it easier way.
(x + 1 ) = 0 put the first and second equation to 0
x = -1
x³ + 2x² - 5x - 6 = 0 Now plug in the x in the equation
(-1)³ + 2(-1)² - 5(-1) - 6 = 0
0 = 0
so (x + 1) is a factor.
Answer:
The second choice 
Step-by-step explanation:
The missing image is attached
We use the section formula:
We substitute 
and m=5, n=9
We simplify to get:
This simplifies to:
In decimals we get:
