Answer:
$2,677.72
Step-by-step explanation:
L = 3C
P
4P + 3L = 1,580.62
2L + 5C = 1,340.90
4P + 5L + 3C = ?
2L + 5C = 1,340.90
6C + 5C = 1,340.90
11C = 1,340.90
C = 121.90
121.90 * 3 = 365.70
L = 365.70
4P + 3L = 1,580.62
365.70 * 3 = 1,097.10
4P = 483.52
P = 120.88
C = 121.90
L = 365.70
P = 120.88
4P + 5L + 3C = ?
4(120.88) + 5(365.70) + 3(121.90) = 2,677.72
Answer:
det(A)=-det(B)
Step-by-step explanation:
We have two matrices A, and B.
Matrix B is obtained by swapping rows 1 and 3 of matrix A.
Whenever we swap rows in matrices, the determinants does not change but the sign changes.
Therefore
det(A)=-det(B)
Also no two rows of of both matrices are the same, therefore
det(A)≠0, and det(B)≠0
Answer:
4.9 m²
Step-by-step explanation:
Area of a Triangle = (base * height)/2
(3.5*1.4)/2 = 2.45 m² = A of CBD
(3.5*1.4)/2 = 2.45 m² = A of BCA
Answer:
1
Step-by-step explanation:
Solve the equation for x:
3(x + 5) = -4x + 8
<em>Distribute.</em>
3x + 15 = -4x + 8
<em>Combine like terms.</em>
3x + 15 = -4x + 8
+4x +4x
7x + 15 = 8
-15 -15
7x = -7
<em>Divide both sides by 7.</em>
x = -1
The following equation has one solution, x = -1.
It is 76
thanks
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