Answer:
x³
Step-by-step explanation:
Differentiate using the power rule
(a ) = na
Given
, then
( )
= 4 × = x³
Answer:
I dont know about you, but my teacher taught me to use MAN
M= 10 (the c value)
A= 7 (the b value)
N= +5, +2 (two numbers that multiply and add to give you 10 and 7. For example, 5 times 2= 10 and 5 plus 2 = 7)
ANSWER: (x+5)(x+2)
if you have any questions let me know.
1/3(2)=area
so the area is 2
_
3
(i) Use the formula for the determinant of a 2×2 matrix.
(ii) The adjugate matrix is the transpose of the cofactor matrix of A. (These days, the "adjoint" of a matrix X is more commonly used to refer to the conjugate transpose of X, which is not the same.)
The cofactor of the (i, j)-th entry of A is the determinant of the matrix you get after deleting the i-th row and j-th column of A, multiplied by . If C is the cofactor matrix of A, then
Then the adjugate of A is the transpose of C,
(iii) The inverse of A is equal to 1/det(A) times the adjugate:
(iv) The system of equations translates to the matrix equation
Multiplying both sides on the left by the inverse of A gives
Hello from MrBillDoesMath!
Answer:
x = 4, y = 5
Discussion:
-2x + 5y = 17 (*)
x + y = 9 (**)
Multiplying (**) by 2 gives
2x + 2y = 18 (***)
Adding (*) and (***) gives
(-2x + 5y) + (2x + 2y) = 17 + 18 =>
(-2x + 2x) + (5y + 2y) =35 => as -2x + 2x = 0 and 5y +2y = 7y
0 + 7y = 35 => divide both sides by 7
y = 35/7 = 5
Substituting y = 5 in (**) gives x + y = 9 or x + 5 = 9 => x = 9-5 = 4
Thank you,
MrB