For Exercises 39-50, solve the system by using the inverse of the coefficient matrix. (See Example 7) 5 x − 3 y = − 20 10 x − 7 y = − 50 See Exercise 20 for A − 1 .
For Exercises 39-50, solve the system by using the inverse of the coefficient matrix. (See Example 7) 5 x − 3 y = − 20 10 x − 7 y = − 50 See Exercise 20 for A − 1 .
Solution Summary: The author calculates the solution of the system of equations 5x-3y=-20and10x-7y =-50. They then convert the matrix equation into a 2times 2 identity
In the xy-plane, the graphs of the linear
function and the exponential function E
both pass through the points (0,2) and (1,6)
The function f is given by
f(x) = L(x) - E(x). What is the maximum
value of f?
A
0.007
B
0.172
C
0.540
D 1.002
n
3
5
ст
7
ап
85
95
105
The table gives values of an arithmetic
sequence an for selected values of n. Which
of the following linear functions is
αρ
constructed from the initial value an (with
n = 0) and common difference of the
sequence?
A
f(x) = 70+5x
B
f(x) = 70+10x
C
f(x) = 75+5x
D
f(x) = 75+10x
3. Submit answer Practice similar
Calculate the integral approximation Se for
So
dz.
L-de
4
1.
Submit answer
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