Step-by-step explanation:
siht daer tnod
Answer:
2) x = -2
, y = 2
3) no solution exists
Step-by-step explanation:
Solve the following system:
{-2 x - 3 y = -2
y = 2 x + 6
Hint: | Perform a substitution.
Substitute y = 2 x + 6 into the first equation:
{-2 x - 3 (2 x + 6) = -2
y = 2 x + 6
Hint: | Expand the left hand side of the equation -2 x - 3 (2 x + 6) = -2.
-2 x - 3 (2 x + 6) = (-6 x - 18) - 2 x = -8 x - 18:
{-8 x - 18 = -2
y = 2 x + 6
Hint: | Choose an equation and a variable to solve for.
In the first equation, look to solve for x:
{-8 x - 18 = -2
y = 2 x + 6
Hint: | Isolate terms with x to the left hand side.
Add 18 to both sides:
{-8 x = 16
y = 2 x + 6
Hint: | Solve for x.
Divide both sides by -8:
{x = -2
y = 2 x + 6
Hint: | Perform a back substitution.
Substitute x = -2 into the second equation:
Answer: {x = -2
, y = 2
Answer:
36.5
Step-by-step explanation:
5(1+6.3)
Answer:
6 in * 4 in * 2 in
Step-by-step explanation:
Given the following data;
Volume of rectangular prism = 48 in³
To find its possible dimensions;
Volume of rectangular prism = length * breadth * height
48 = length * breadth * height
From the given options, option B is most likely to be its dimensions.
Where;
Length = 6 in
Breadth = 4 in
Height = 2 in
Substituting into the formula, we have;
48 in = 6 * 4 * 2
48 in = 48 in
Area = length x width
Area = 3x + 5 Cm x 8 cm
Multiply each term by each term.
Area = 24x + 40 square cm
