Step-by-step explanation:
Speed = Distance / Time
given distance = 6km
time = 30 minutes = 30/60 hr = 1/2hr
speed =
The slope is 2/5 or 0.4!
To figure out slope from a graph use the formula y2- y1/ x2- x1
We can substitute the numbers and letters in the formula for the ones on the chart
For example, x1 is -3 because it is the first “x” value on the chart. X2 is 2 because it is the second “x” value on the chart. Y1 is 0 because it is the first “y” value on the chart and y2 is 2 because it is the second “y” value on the chart.
To set up the formula get what is labeled as y2, 2, and subtract it by the y1, 0, that equals 2. Next, get your x2, 2, and subtract it by your x1, -3. The answer being 5.
Turn those calculations into a fraction- 2/5 or 0.4 if you simplify it
If you don’t get it at first don’t worry it takes practice!
Answer:the answer is
Step-by-step explanation:c
Answer:
x = 6 or x = -3/2
Step-by-step explanation:
Solve for x:
16 x^2 - 72 x + 145 = 289
Hint: | Write the quadratic equation in standard form.
Divide both sides by 16:
x^2 - (9 x)/2 + 145/16 = 289/16
Hint: | Solve the quadratic equation by completing the square.
Subtract 145/16 from both sides:
x^2 - (9 x)/2 = 9
Hint: | Take one half of the coefficient of x and square it, then add it to both sides.
Add 81/16 to both sides:
x^2 - (9 x)/2 + 81/16 = 225/16
Hint: | Factor the left hand side.
Write the left hand side as a square:
(x - 9/4)^2 = 225/16
Hint: | Eliminate the exponent on the left hand side.
Take the square root of both sides:
x - 9/4 = 15/4 or x - 9/4 = -15/4
Hint: | Look at the first equation: Solve for x.
Add 9/4 to both sides:
x = 6 or x - 9/4 = -15/4
Hint: | Look at the second equation: Solve for x.
Add 9/4 to both sides:
Answer: x = 6 or x = -3/2