Answer:
- 2, 0 )
Step-by-step explanation:
Given the 2 equations
y = - 2x - 4 → (1)
y = 2x + 4 → (2)
Substitute y = - 2x - 4 into (2)
- 2x - 4 = 2x + 4 ( subtract 2x from both sides )
- 4x - 4 = 4 ( add 4 to both sides )
- 4x = 8 ( divide both sides by - 4 )
x = - 2
Substitute x = - 2 into (2) for corresponding value of y
y = 2(- 2) + 4 = - 4 + 4 = 0
Solution is (- 2, 0 )
Answer:
57.4 mph
Step-by-step explanation:
The process will be to divide the number of miles by the amount of time
So,
miles = 296
time = 5 hr 10 min
miles / time
296 / 5 hr 10 min
re-write 5 hr 10 min as 5.16
296 / 5.16
<u>57.4 mph on average</u>
An equation consists of 2 expressions that are equal.
<u>A linear equation is an equation consisting of one variable (usually x) to the first power and is of the form: </u><u><em>ax + b = 0</em></u><u> or </u><u><em>ax = b</em></u><u> (where </u><u><em>a</em></u><u> and </u><u><em>b</em></u><u> are real numbers) </u>
To isolate the variable, you cancel a term on one side of the equation by using the inverse operation to 'undo' the given operation.
<em>For example, to solve the linear equation: 3x + 7 = 10</em>
<em>Subtract 7 from each side (to undo the addition symbol in front of 7)</em>
<em>Then divide by 3 to each side (to undo the 3 being multiplied to the x)</em>
If two <span>angles of one triangle are equal to two angles of another triangle, the third angles of the triangles must also be equal. </span>