Answer: Option 'c' is correct.
Step-by-step explanation:
Since we have given that
We need to find the number of units in order to minimize cost.
We first derivative w.r.t. x,
For critical points:
Now, we will check whether it is minimum or not.
We will find second derivative .
So, it will yield minimum cost.
Minimum cost would be
Hence, At 150 units, minimum cost = $4000
Therefore, Option 'c' is correct.
Answer:
y=5
solution,
X=2
now,
hopethishelps..
Goodluck on your assignment..
Answer:
just do 68986
- 64997
______
3,989
b. What are the speeds of the two cyclists? Put both values in the answerbox, separated with a comma, and select the appropriate units.
Answer:
Speed of a= 21 miles/hr
r = Speed of b= 7 miles/hr
Speed of a = 3r
Step-by-step explanation:
The cyclist are 112 miles apart
Time traveled by two = 4 hours
Speed of a = 3 * speed of b
If a cylcles 3 times More than b, then a will cover 3*distance of b
But speed = distance/time
Time = 4hours
Total distance=112
a = 3b
3b + b = 112
4b = 112
b = 112/4
b = 28 miles
a = 3b
a = 3*28
a = 84 Miles
They bought traveled 4 hours
Speed of a = 84miles/4 hours
Speed of a= 21 miles/hr
Speed of b = 28miles/4 hours
Speed of b = 7 miles/hr
The slower cyclist is traveling at a speed of 7 mph, while the faster cyclist is traveling at 21 mph.
We first need to recognize that the sum of the distances travelled by each cyclist is equal to the total 112 miles. We can let r represent the speed of the slower cyclist, and since the faster cyclist is traveling 3 times the speed of the slower, we can call his speed 3r.
As they each traveled for 4 hours, the slower cyclist traveled a distance of 4r miles, and the faster cyclist traveled a distance of 4 × 3r = 12r miles. Their combined distances should equal the total distance between them, 112 miles. This forms the equation 4r + 12r = 112.
To solve for r, we combine the like terms on the left side of the equation to get 16r = 112. Dividing both sides by 16, we find r = 7 miles per hour. Therefore, the slower cyclist is traveling at 7 mph, and the faster cyclist is traveling 3 times that speed, giving us 21 mph.
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b)the number of reflexive and symmetric relations on S
Answer:
The number of reflexive relations on S is 64.
The number of reflexive and symmetric relations on S is 8.
Step-by-step explanation:
Consider the provided set S = {a, b, c}.
The number of elements in the provided set is 3.
Part (a) the number of reflexive relations on S
To calculate the number of reflexive relation on S we can use the formula as shown:
Total number of Reflexive Relations on a set:.
Where, n is the number of elements.
In the provided set we have 3 elements, so substitute the value of n in the above formula:
Hence, the number of reflexive relations on S is 64.
Part(b) The number of reflexive and symmetric relations on S.
To calculate the number of reflexive and symmetric relation on S we can use the formula as shown:
Total number of Reflexive and symmetric Relations on a set:.
Where, n is the number of elements.
In the provided set we have 3 elements, so substitute the value of n in the above formula:
Hence, the number of reflexive and symmetric relations on S is 8.
The quadratic value function is y = -x² - 4x + 16
Given data ,
Let the quadratic equation be represented as A
Now , the value of A is
Let the function passes through the given points. (-1,-11) (2,-26) (-3,-31)
And , using the point (-1,-11) , we get
-11 = a(-1)² + b(-1) + c
-11 = a - b + c
Using the point (2,-26) , we get
-26 = a(2)² + b(2) + c
-26 = 4a + 2b + c
Using the point (-3,-31) , we get
-31 = a(-3)² + b(-3) + c
-31 = 9a - 3b + c
And , the three set of equations are
-11 = a - b + c
-26 = 4a + 2b + c
-31 = 9a - 3b + c
From the first equation, we can solve for c:
c = 11 - a + b
Substituting this expression for c into the other two equations, we get:
-26 = 4a + 2b + 11 - a + b
-31 = 9a - 3b + 11 - a + b
Simplifying these equations, we get:
-15 = 3a + 3b
-21 = 8a - 2b
Solving the first equation for b in terms of a, we get:
b = -5 - a
Substituting this expression for b into the second equation, we get:
-21 = 8a - 2(-5 - a)
Simplifying and solving for a, we get:
a = -1
Substituting this value of a into the equation for b that we found earlier, we get:
b = -5 - (-1) = -4
Finally, substituting these values of a and b into the equation for c that we found earlier, we get:
c = 11 - (-1) - (-4) = 16
Hence , the quadratic function that passes through the given points is given by y = -x² - 4x + 16
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Answer:
she develops a fair and healthy relationship with her classmate but also she elected the class president at their school
Step-by-step explanation:
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