The planes could be at different altitudes.
Answer:
18 years
Step-by-step explanation:
2(8+x) = 34+x
16+2x = 34+x
-18 = -x
<h2>
Stella is correct about center and wrong about radius </h2>
Step-by-step explanation:
Equation of circle with (h,k) as center and radius r is given by,
(x-h)²+(y-k)² = r²
Here equation is
x²−8x+y²+2y=5
Changing in to (x-h)²+(y-k)² = r² form
x²−8x + 16 - 16 +y²+2y+1 - 1=5
(x-4)² - 16 + (y+1)² -1 = 5
(x-4)² + (y+1)² = 22
(x-4)² + (y+1)² = 4.69²
Center is (4,-1) and radius is 4.69
Stella is correct about center and wrong about radius
The general equation use to calculate increasing or decreasing values
P(t) = A(1 + r)^t
where:
P = New value
A = original or starting amount
r = rate (can be either increasing(+) or decreasing(-))
t = time period that increase/decrease take place.
So after 1 year at 3.8% interest
P = 7500(1 + 0.038)^1
P = 7500(1.038)
P = 7,785
Then after 1 year at 5.35 interest
P = 7500(1 + 0.053)^1
P = 7500(1.054)
P = 7,897.50