Answer:
x = sqrt(29)/2 - 3/2 or x = -3/2 - sqrt(29)/2
Step-by-step explanation by completing the square:
Solve for x over the real numbers:
x^2 + 3 x - 5 = 0
Add 5 to both sides:
x^2 + 3 x = 5
Add 9/4 to both sides:
x^2 + 3 x + 9/4 = 29/4
Write the left hand side as a square:
(x + 3/2)^2 = 29/4
Take the square root of both sides:
x + 3/2 = sqrt(29)/2 or x + 3/2 = -sqrt(29)/2
Subtract 3/2 from both sides:
x = sqrt(29)/2 - 3/2 or x + 3/2 = -sqrt(29)/2
Subtract 3/2 from both sides:
Answer: x = sqrt(29)/2 - 3/2 or x = -3/2 - sqrt(29)/2
Answer:
it looks like the pc version since the quality is nice
Answer:
for every extra mile an employee drives, the driving time increases by 1.3 minutes
Step-by-step explanation:
Step 1: The given regression equation y = 1.3x + 6.8, where "x" is the number of miles and "y" is the time taken.
Step 2: Here the constant 6.8 remains the same. For each extra mile, the time increases by 1.3
For example, let's take x = 2 miles, the time taken y = 1.3(2) + 6.8
= 2.6 + 6.8
y = 9.4
Let's take x = 3, the time taken y = 1.3(3) + 6.8
= 3.9 + 6.8
y =10.7
You can see the difference in the timing by 1.3.
Therefore, for each extra mile, the time is increases by 1.3 minutes.
Thank you.
Answer: $20.00.
Step-by-step explanation: ...ok..
Basically your gonna divide 154 by 14.
your answer should be 11.
then multiply 11 by 25.
your answer should be $275.
