A mixture requires 4 cups of water for every 7 cups of flour used. How many cups of water should be used with 28 cups of flour
1 answer:
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The first thing we notice is that the function is reflected. So we can start by reflecting it with respect to the x-axis.
We do this by adding a negative sign in the function:
Now, we have the function reflected, but in the wrong position. We can track its position by the vertex. It was originally at (0,0) and remains at (0,0) after the reflection.
But the final function have its vertex at (-5,0), so we have to translate the function 5 units to the left. we do this by adding 5 to the x in the function:
Now, to check if there isn't any dilatation, we can check on other point in the graph to see if it checks out.
In the blue graph, we see the point (-3,-4), so let's input x = -3 and see if it checks out:
We got y = -4, so it checks out.
Thus, the answer is:
Answer: 0.57
Step-by-step explanation:
Given : The speed of cars on a stretch of road is normally distributed .
Population Mean =
Standard deviation :
Let x be the random variable that represents the speed of cars on a stretch of road .
z-score :
For x= 50.
By using the standard normal distribution table ,
The probability that a randomly selected car is violating the speed limit of 50 miles per hour :-