Answer:
x=15
Step-by-step explanation:
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Answer:
b
Step-by-step explanation:
Answer:
C. Three
Step-by-step explanation:
We want to solve the equation for n:
14,580 = 20,000(9/10)^n
14580/20000 = 729/1000 = (9/10)^n
(9/10)^3 = (9/10)^n . . . . . . write the left side as a cube
3 = n . . . . . . equate exponents
After year 3, the value will be $14,580.
_____
You can use logarithms to find n:
log(0.729) = n×log(0.9) . . . . . . taking the log of the 2nd line above
log(0.729)/log(0.9) = n = 3
Answer:
Step-by-step explanation:
Angle EFB = 180 - 147 = 33 (Angles on a straight line add up to 180 degrees)
Angle FEB = 180 - 4x (Angles on a straight line add up to 180 degrees)
Since the angles in a triangle add up to 180 degrees ,
Remove brackets:
Add/Subtract:
Subtract 213 from both sides:
Divide both sides by -3:
Answer:
y= -1/4x + (-1)
Step-by-step explanation:
(4,-2) (0,-1)
m= y2-y1/x2-x1
m=-2-(-1)/4-0
m= -1/4
y= mx + b
-2= -1/4(4)+ b
-2= -1 +b
+1 +1
-1= b
