Answer:
1) The value of c is given by
2) The value of k is given by
Step-by-step explanation:
Given that function g is defined by 
, where c is a constant.
To find c:
Also given that value of g(x) at x=0.5 is equal to -1
ie., 
At x=0.5
Therefore
2) Given that function h is defined by 
, where k is a constant.
To find k:
Also given that value of h(x) at x=20 is equal to 65
ie., 
At x=20
Therefore
Answer:
Cube both sides tham solve the resulting quadratic
Answer: x = -9
Step-by-step explanation:
-10x - 10y = -10
when y = 10
-10x - 10(10) = -10
-10x - 100 = -10
Add 100 to each side
-10x = 90
Divide each side by -10
x = -9
-10(-9) - 10(10)
90 - 100 = -10
Answer:
the value of the investment after 3 years= £11,904
Step-by-step explanation:
sarah invests £9600 at a simple interest rate of 8% per year
number of years = 3
Formula for simple interest
I = P*n* r
P is the initial amount invested= 9600
r is the rate of interest = 8% = 0.08
n = number of years = 3
Now we find interest using formula
I = 9600 * 0.08 * 3= 2304
Interest amount is 2,304
Now we add the interest with the initial amount to get the value of investment after 3 years
9600 + 2304= 11904
