Alfred is taking a trip. He drove 150 mi and then stopped to refuel. He will drive 60 mph to finish his trip. Let x represent the hours it takes for Alfred to complete the rest of his trip, and let y represent the total distance traveled.Complete the function equation that relates Alfred’s total distance traveled to his time.
y =
x +
Answers
Therefore y=150 + 60 x
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The product of 8 and the sum of a number m and 6 is 12.
Which equation could be used to solve y 2+7y=18 by factoring?
a car rents for $30 per day plus 19 cents per mile. you are on a daily budget of $87 what mileage will allow you to stay within your budget (solution {m/≤_miles)
The set has 50 as an outlier and removing it decreases the mean by about 6.
B.
The set has 50 as an outlier and removing it decreases the mean by about 2.
C.
The set has 50 as an outlier and removing it increases the mean by about 3.
Answers
The set has 50 as an outlier and removing it increases the mean by about 3.
Since 50 is significantly smaller number than all others, it is expected that removing 50 will increase the mean.
The first mean is 76:
The mean after removing 50 is:
X₂ ≈ 79
The difference between the second and the first mean is 79 - 76 = 3, thus
removing 50 as an outlier increases the mean by about 3.
B.C' (−2, −3)
C.C' (−2, 3)
D.C' (2, 3)
Answers
�� 20 + 33x �� 40 - 33x
Answers
Answer:20-33x
Step-by-step explanation:
Choose all answers that are correct.
A.
The manager selects 20 boards at random each day for 5 days and examines them.
B.
The manager sends an email to 20 customers who buy lumber from the mill, asking each how many of the boards they bought the past week were defective. Results from the first 5 customers to respond are tallied.
C.
On 1 day, an hour after the sawmill begins production, 30 boards in a row are selected and examined.
D.
Every 40th board produced over the course of 1 week is selected and examined.
Answers
B.
The manager sends an email to 20 customers who buy lumber from the mill, asking each how many of the boards they bought the past week were defective. Results from the first 5 customers to respond are tallied.
C.
On 1 day, an hour after the sawmill begins production, 30 boards in a row are selected and examined.
Answers
Answer:
Step-by-step explanation:
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Answer:
51/2
please see the attached picture forfullsolution..
hope it helps..
Good luck on your assignment
Answers
Taking into account the definition of maximum, minimum and vertex of a quadratic function, it takes 12.5 seconds for the projectile to reach maximum height.
A quadratic function is defined in the form:
y= f (x) = ax² + bx + c
Every quadratic function has a maximum or a minimum, which is the vertex of the parabola. If the parabola has an upward concavity, the vertex corresponds to a minimum of the function; whereas if the parabola has concavity downwards, the vertex will be a maximum.
That is, if the coefficient a is positive the parabola is concave and the vertex will be a minimum of the function, while if a is negative the parabola will be convex and the vertex is a maximum.
The maximum or minimum is reached in
The maximum or minimum value of y is obtained by evaluating the function at xv, this is, f (xv).
In this case, the function is:
h(t)= -16t² + 400t
where t is the time in seconds
Being a = -16 and b = 400, the value of a is negative, so the vertex will be the maximum.
You want to know the time it takes for the projectile to reach the maximum height, that is, the maximum in t. That is, you must calculate t using the expression:
So:
Solving:
t= 12.5 seconds
It takes 12.5 seconds for the projectile to reach maximum height.
Learn more about cuadratic function with this examples:
Answer:
You can find the answer by using the formula x=-b/2a
Step-by-step explanation:
Remember the maximum height will be at the vertex. The x value of the vertex is your time, so use x=-b/2a. Then if it had also asked what the height was, you would plug that answer into your equation to find the y value of the vertex. Pretty sure your teacher is just asking you to find the x though:)