A=final amount
P=initial amount invested
r=rate in decimal form
n=number of times compounded per year
t=time in years
given
A=4900
P=4200
r=r (we are solving for this)
n=semianually=2 times per year
t=4
find r
divide both sides by 4200
take 8th root of both sides
minus 1
multiply both sides by 2
r=0.038911
r=3.891% so about 3.89%
Answer:
Simplify the expression.
65
y
/14
Step-by-step explanation:
Answer:
y=-86, x=216
Step-by-step explanation:
Answer:
x^4 * (1/y^2)
Step-by-step explanation:
A negative exponent is just the reciprocal of the positive version of the exponent.
Answer:
c. y = ¼x - 2
Step-by-step explanation:
Find the slope (m) and y-intercept (b) then substitute the values into y = mx + b (slope-intercept form)
Slope = change in y/change in x
Using two points on the graph, (0, -2) and (4, -1):
Slope (m) = (-1 - (-2))/(4 - 0) = 1/4
m = ¼
y-intercept = the point where the line intercepts the y-axis = -2
b = -2
✔️To write the equation, substitute m = ¼ and b = -2 into y = mx + b:
y = ¼x - 2