Answer:
x = -34
, y = 31
Step-by-step explanation suing Gaussian elimination:
Solve the following system:
{2 x + 3 y = 25
3 x + 4 y = 22
Express the system in matrix form:
(2 | 3
3 | 4)(x
y) = (25
22)
Write the system in augmented matrix form and use Gaussian elimination:
(2 | 3 | 25
3 | 4 | 22)
Swap row 1 with row 2:
(3 | 4 | 22
2 | 3 | 25)
Subtract 2/3 × (row 1) from row 2:
(3 | 4 | 22
0 | 1/3 | 31/3)
Multiply row 2 by 3:
(3 | 4 | 22
0 | 1 | 31)
Subtract 4 × (row 2) from row 1:
(3 | 0 | -102
0 | 1 | 31)
Divide row 1 by 3:
(1 | 0 | -34
0 | 1 | 31)
Collect results:
Answer: {x = -34
, y = 31
Answer:
9.929
Step-by-step explanation:
-1.091 + 12.12 = 11.029
11.029+(-1.1) = 9.929
To solve it would be 14/5 but if it’s simplify it would be 5x=14
Answer:
No.
Step-by-step explanation:
h(t)= -16t^2+20t+6, (I assume you left out the exponent as this IS quadratics)
Put the equation into a graphing calculator and it shows how at the top of the parabola the y axis never reaches 14.
Step-by-step explanation:
Look at the picture.
We connect two congruent trapezoids as in the picture.
We created a parallelogram with a base length of b₁ + b₂ and a height h equal to the height of the trapezoid.
The formula of an area of a parallelogram:
The area of the trapezoid is half of the parallelogram area.
Therefore we have the formula of an area of trapezoid:
Therefore we need to be added the bases of a trapezoid.
