Log(7x+1) - log(x-2) =1
log[(7x+1) / (x-2)] =1 or log[(7x+1) / (x-2)] =log10 (log10=1)
it means (7x+1) / (x-2) =10
Solving ===> x=7
C is true because the slope for johan is 15 compared to Rowans slope which is 5
Original position of the submarine below the Surface = -2 2/3= -8/3
Submarine at a depth of -2 2/3 feet descended by 5 1/2 feet.
So new position of the Submarine = 
To Reach the surface submarine must rise = 0-(-49/6)
As seen from the equation the two negative sign [(-)(-)] will change into a positive sign.
At the surface the position of the submarine = +49/6 feet
Answer:
x = 100°
y = 125°
z = 55°
Step-by-step explanation:
A straight line is 180°
A triangle is 180°
Solve in this order:
X: 180 - 80 = 100
Z: 180 - 80 - 45 = 55
Y: 180 - 55 = 125
A= a+b/2 *h
6.5 = a+4/2 * 2
6.5/2 = a+4/2 *2/2
3.25 = a+4/2
3.25*2= a+4/2*2
6.5 = a+4
6.5-4 = a+4-4
2.5 = a
The missing measure is 2.5
Check
6.5= 2.5+4/2 *2
6.5= 2.5+2*2
6.5=2.5 + 4
6.5=6.5
