PLEASE HELP ME WITH THIS QUESTION TT ITS A EQUIVALENT QUESTION!!!
thank you!
Answers
Answer: [tex]\boldsymbol{\frac{5\text{x}-2}{\text{x}^2-\text{x}}}[/tex] (choice D)
You have the correct answer.
=====================================================
Work Shown:
[tex]\frac{2}{\text{x}} + \frac{3}{\text{x}-1}\\\\\frac{2(\text{x}-1)}{\text{x}(\text{x}-1)} + \frac{3\text{x}}{\text{x}(\text{x}-1)}\\\\\frac{2\text{x}-2}{\text{x}^2-\text{x}} + \frac{3\text{x}}{\text{x}^2-\text{x}}\\\\\frac{2\text{x}-2+3\text{x}}{\text{x}^2-\text{x}}\\\\ \boldsymbol{\frac{5\text{x}-2}{\text{x}^2-\text{x}}}\\\\[/tex]
--------
Explanation:
The idea I used is that we cannot add the fractions unless the denominators are the same. The denominators x and (x-1) lead to the lowest common denominator, aka LCD, of [tex]\text{x}(\text{x}-1) = \text{x}^2 - \text{x}[/tex]. We multiply the denominators together to get the LCD.
The first original fraction [tex]\frac{2}{\text{x}}[/tex] is missing (x-1) in the denominator. This is why I multiplied top and bottom by (x-1) in the 2nd step. Similarly, the fraction [tex]\frac{3}{\text{x}-1}[/tex] is missing an x out front to get to x(x-1). This is why I multiplied top and bottom of that fraction by x.
After we get the denominators to be the same, we can then add the numerators like any other algebraic expression. The denominator stays the same the entire time.
It's similar to how [tex]\frac{2}{7} + \frac{3}{7} = \frac{2+3}{7} = \frac{5}{7}[/tex] has the numerators add like you'd expect while the denominator stays at 7 the entire time.
You can think of it like this: "2 sevenths + 3 sevenths = 5 sevenths" or "2s+3s = 5s" for short. The term "sevenths" is effectively a unit such as cm or meters. We must have common units if we want to add them.
Related Questions
Given that BZ BA, if WV = 24, find ZY.
A. 48
B. 24
C. 12
D. 6
Answers
The computation shows that the value of the length of ZY will be B. 24.
How to illustrate the information?Let the assumed figures be:
BZ = 48
BA = 12
WV = 24
ZY = Unknown
Let's assume that the opposite sides in the quadrilateral are the same, the value of ZY will be:
ZY = (48 × 12)/24
ZY = 24
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Answer:
C.12
Step-by-step explanation:
Trust
if you rent a full-size car from Quick Car Rental for 1 day how much would the total rental cost be if you drove the car 78 miles than if you drove it 77?
Answers
Assuming you drove the car 78 miles than driving it 77 miles, the total rental cost would be equal to $0.40.
How to determine the total rental cost?Assuming you drove the car 78 miles than driving it 77 miles, the total rental cost would be calculated by determining the slope of the line for Quick Car Rental (Q) and for Speedy Car Rental.
Mathematically, the slope of any straight line can be calculated by using this formula;
[tex]Slope = \frac{Change\;in\;y\;axis}{Change\;in\;x\;axis}\\\\Slope = \frac{y_2\;-\;y_1}{x_2\;-\;x_1}[/tex]
Substituting the given points into the formula, we have;
[tex]Slope = \frac{55\;-\;15}{100\;-\;0}\\\\Slope = \frac{40}{100}[/tex]
Slope = 0.40.
Therefore, the total rental cost would be equal to $0.40.
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Complete Question:
At both Quick Car Rental and Speedy Car Rental, the cost, in dollars, of renting a full - size car depends on a fixed daily rental fee and a fixed charge per mile that the car is driven. However, the daily rental fee and the charge per mile are not the same for the 2 companies. In the graph below, line Q represents the total cost for Quick Car Rental and line S represents the total cost for Speedy Car Rental. If you rent a full-size car from Quick Car Rental for 1 day how much would the total rental cost be if you drove the car 78 miles than if you drove it 77?
At 8:00 a.m., there were t inches of snow on the ground. At 5:00 p.m., there were 3t inches of snow on the ground. How many more inches of snow were on the ground at 5:00 p.m. than at 8:00 a.m. if there were 12 inches of snow on the ground at 5:00 p.m.?
Answers
we conclude that at 5:00 p.m. there are 8 more inches of snow than at 8:00 a.m.
How many more inches of snow were on the ground at 5:00 p.m. than at 8:00 a.m.?We know that at 8:00 a.m. there were t inches of snow in the ground.
At 5:00 p.m. there were 3t inches of snow in the ground.
Then the difference between the heights of the snow is:
3t- t = 2t
And we know that at 5:00 p.m. there were 12 inches of snow then we can solve the linear equation for t:
3t = 12in
t = (12in)/3 = 4 in
Replacing that in the difference of heights:
2t = 2*4in = 8in
From this, we conclude that at 5:00 p.m. there are 8 more inches of snow than at 8:00 a.m.
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Multiply 2x(x+28)
pls answer asap
Answers
Answer:
2x^2+56x
Step-by-step explanation:
The peak of Mount Everest is at 8,848 meters above sea level. The peak of Kanchenjunga is at 8,586 meters above sea level.
The elevation of Mount Everest's peak as a rational number is
meters. The elevation of Kanchenjunga's peak as a rational number is
meters.
Answers
Then, the elevation of Mount Everest's peak as a rational number is[tex]\frac{8,848}{1}[/tex] meters. The elevation of Kanchenjunga's peak as a rational number is [tex]\frac{8,586}{1}[/tex] meters.
1. The number 8,848 is an integer and the number 8,586 is also an integer.
2. Therefore, to solve this problem you must convert the integers shown above to fractions (Because a rational number is that one that can be written as a fraction), as you can see below:
Write each integer as the numerator of the fraction a write 1 as the denominator. This will not change the value.
What is the fraction?A fraction represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight-fifths, three-quarters.
Then you obtain the following fractions:
[tex]\frac{ 8,848}{1}[/tex]
[tex]\frac{8,586}{1}[/tex]
3. Then, the elevation of Mount Everest's peak as a rational number is[tex]\frac{8,848}{1}[/tex] meters. The elevation of Kanchenjunga's peak as a rational number is [tex]\frac{8,586}{1}[/tex] meters.
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To prove that ΔAED ˜ ΔACB by SAS, Jose shows that StartFraction A E Over A C EndFraction = StartFraction A D Over A B EndFraction.
Triangle A E D is shown. Line segment B C is drawn from side A D to A E to form triangle A C B.
Jose also has to state that
Answers
The other equality which must be stated by Jose is that angles BAC and BAE are congruent and their measures are equal.
What other congruence statements must Jose state?It follows from the task content that Jose is trying to prove the congruence of both triangles by means of the Side-Angle-Side congruence theorem.
It therefore follows that since, Jose has identified that the ratio of corresponding sides are equal as indicated in the task content, the equality which Jose has to state is the angle congruence equality.
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Find the surface area of the square pyramid.
Answers
Answer:
[tex]39 yd^2[/tex]
Step-by-step explanation:
So, let's start by calculating the surface area of the base, which in this case is a square. The area of a square can be calculating by taking any of the lengths and squaring it, since all the sides should be equal if it's a square. Since one of the sides of the square is 3 yd, you have the equation: [tex](3 yd)^2 = 9yd^2[/tex]. Now to calculate the area of the four triangles. The area of a triangle can be calculating by using the formula: [tex]\frac{1}{2}bh[/tex], and in this case the base is 3 yd, and the height is 5 yd (lengths can be determined by looking at the given values in the diagram). But there's 4 of the triangles so we multiply it all by 4, and this gives you the equation: [tex]4(\frac{1}{2}(5 yd)(3 yd)) = 4(\frac{15 yd^2}{2}) = 4(7.5 yd^2)=30yd^2[/tex]. So now all that's left is to add this to the area of the square which gives you the equation: [tex]30yd^2+9yd^2=39yd^2[/tex] which is the surface area
Resolver y realizar la comprobacion del siguiente sistema de ecuacion aplicando el metodo grafico. [y=3-2x, y=8-7x
Answers
The solution for the system of equations: y = 3 - 2x and y = 8 - 7x, is x = 1, y = 1.
In the question, we are given a system of equations,
y = 3 -2x ... (i), and
y = 8 - 7x ... (ii).
We have been asked to solve the given system of equations.
To solve the system of equations, we do as follows:
Substitute the value of y = 3 - 2x, from (i) in (ii), to get:
y = 8 - 7x,
or, 3 - 2x = 8 - 7x, which is a linear equation in one variable.
To solve this, we follow these steps:
3 - 2x = 8 - 7x,
or, 3 - 2x + 7x = 8 - 7x + 7x {Adding 7x to both side of the equation},
or, 3 + 5x = 8 {Simplifying},
or, 3 + 5x - 3 = 8 - 3 {Subtracting 3 from both sides of the equation},
or, 5x = 5 {Simplifying},
or, 5x/5 = 5/5 {Dividing both sides of the equation by 5},
or, x = 1.
Substituting x = 1, in (i), we get:
y = 3 - 2x,
or, y = 3 - 2(1),
or, y = 3 - 2 = 1.
Thus, the solution for the system of equations: y = 3 - 2x and y = 8 - 7x, is x = 1, y = 1.
Note: The language seemed not gettable.
The question has been done assuming the question asking to solve the system of equations:
y = 3 - 2x, y = 8 - 7x.
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mathematicians in the world. x3+y3+z3=k, with k being all the numbers from one to 100, is a Diophantine equation that's sometimes known as "summing of three cubes."
Answers
The answer to the Diophantine equation (x³+y³+z³=k) is given below. First lets us see the definition of the same.
What is a Diophantine equation?A Diophantine equation in mathematics is a polynomial equation with two or more unknowns, where the only solutions of interest are integer ones.
A linear Diophantine equation is equal to the sum of two or more monomials of degree one.
Unknowns can emerge in exponents in an exponential Diophantine equation.
What is the solution to the above problem?
Recall that this problem is called the "summing of three cubes." Thus, from the values given, the minimum value of K can be 1.
To arrive at that, we can do
x = 0, y = 0, z = 1
so 0³+0³+1³; hence
k = 1
and maximum value of k can be 99
with that we work with x=2,y=3, z=4
2³+3³+4³=99
Hence, so x can be 0, or 2
y can be 0 or 3; and
z can be 1 or 4.
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Write the equation in point-slope form of the line that passes
through the given point and has the given slope..
m= 5/3,(4, -2)
Answers
Answer:
y + 2 = 5/3(x - 4)
Step-by-step explanation:
Point-slope form of the equation of a line is a shortcut, fill-in-the-blank formula. You can write an equation just by filling in the slope and a point (hence the name, point-slope)
It looks like this:
y - Y = m(x - X)
The point given is (4,-2) fill in the -2 for the Y. Leave the first y just like it is, it stays a y. Fill in the 4 for X. Leave the first little x in the parenthesis alone Leave it an x.
y - -2 = m(x - 4)
Fill in the slope for the m.
y - -2 = 5/3(x - 4)
Simplify if possible.
y + 2 = 5/3 (x - 4)
find f(0) and g(0), if (f/g)'(0)=1, (f g)'(0)=21, f'(0)=5,g'(0)=3
Answers
By the quotient and product rules,
[tex]\left(\dfrac fg\right)'(0) = \dfrac{g(0) f'(0) - f(0) g'(0)}{g(0)^2} = 1[/tex]
[tex](f\times g)'(0) = f(0) g'(0) + f'(0) g(0) = 21[/tex]
Given that [tex]f'(0)=5[/tex] and [tex]g'(0)=3[/tex], we have the system of equations
[tex]\dfrac{5g(0) - 3f(0)}{g(0)^2} = 1 \implies 5g(0) - 3f(0) = g(0)^2[/tex]
[tex]3f(0) + 5g(0) = 21[/tex]
Eliminating [tex]f(0)[/tex] gives
[tex]\bigg(5g(0) - 3f(0)\bigg) + \bigg(3f(0) + 5g(0)\bigg) = g(0)^2 + 21[/tex]
[tex]10g(0) = g(0)^2 + 21[/tex]
[tex]g(0)^2 - 10g(0) + 21 = 0[/tex]
[tex]\bigg(g(0) - 7\bigg) \bigg(g(0) - 3\bigg) = 0[/tex]
[tex]\implies \boxed{g(0) = 7 \text{ or } g(0) = 3}[/tex]
Solve for [tex]f(0)[/tex].
[tex]3f(0) + 5g(0) = 21[/tex]
[tex]3f(0) + 35 = 21 \text{ or } 3f(0) + 15 = 21[/tex]
[tex]3f(0) = -14 \text{ or } 3f(0) = 6[/tex]
[tex]\implies \boxed{f(0) = -\dfrac{14}3 \text{ or } 3f(0) = 2}[/tex]
Find the inverse function.
f(x) =
f-¹(x) =
=
=
2x+5
4
4x + [?]
[
Answers
Answer: [tex]f^{-1} (x)=\frac{4x-5}{2}[/tex]
Step-by-step explanation:
Let [tex]f(y)=x\\[/tex].
[tex]\implies x=\frac{2y+5}{4}\\\\4x=2y+5\\\\4x-5=2y\\\\y=\frac{4x-5}{2}\\\\\therefore f^{-1} (x)=\frac{4x-5}{2}[/tex]
Sarah buys a new pair of sneakers and several pairs of laces. The expression $35+$3l represents the total amount she spent. What does each part of the expression represent?
Answers
For the given linear equation:
The constant term represents the cost of the sneakers.The linear term represents the cost of the laces.What does each part of the expression represent?We know that Sarah buys one pair of sneakers and several pairs of laces.
We know that the amount that she spends is:
$35 + $3*l
The first term, the constant one, represents the cost of the pair of sneakers.
The linear term:
$3*l
Represents the cost of buying l pairs of laces, assuming that each pair costs $3.
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use the distrubutive property to simply 2(-5-7j)
Answers
Answer:
2(-5 - 7j) = -10 - 14j
Step-by-step explanation:
Using the distributive property means that we have to multiply both -5 and -7j by 2:
2(-5 - 7j)
⇒ 2 × -5 + 2 × -7j
⇒ -10 - 14j
Giving 30 points and brainlist for the answer.
Answers
Quadratic function means the highest root is 2
Trinomial means that there are 3 terms
Therefore answer is quadratic trinomial
Hope this helped :)
Which solution can be used to fill
in both blanks in the table? (1, 6)
(6, 1)
(7, 6)
(6, 7)
Answers
The solution which can be used to fill in both blanks in the table is; (6,7).
What is the solution for the system?It follows from the task content that the system given has been simplified to the point that;
3x = 18
x = 18/3 = 6.
Hence, the value of y can be evaluated as follows;
2y - x = 8. where (x=6.
2y = 8+6
y = 14/2 = 7.
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At a football match, one-third of spectators support the Reds and the rest support the Blues. At half-time 345 Blues supporters leave because their team is losing and the remaining Blues supporters now make up one-third of the total. How many Reds supporters are there?
Answers
The number of Red supporters are 345
How to determine the value
From the given information, we have that
Red supporters = 1/3 x
Let the total number of supporter be x
1/3 x + blues = x
1/3x + 1/3x + 345 = x
2/3x + 345 = x
Collect like terms
[tex]x - \frac{2x}{3} = 345[/tex]
[tex]\frac{1}{3} x = 345[/tex]
Cross multiply
[tex]x = 3[/tex] × [tex]345[/tex]
[tex]x = 1035[/tex]
We have red supporters = 1/3x
⇒ [tex]\frac{1}{3}[/tex] × [tex]1035[/tex]
⇒ [tex]345[/tex]
Thus, the number of Red supporters are 345
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Please help me I’ll mark Brainly
Answers
which value of x is in the domain of f(x)= square root x-2
Answers
The domain of the function f(x)= [tex]\sqrt{x-2}[/tex]is all numbers greater than or up to 2.
Given Function f(x)=[tex]\sqrt{x-2}[/tex]
We have to search out the domain of the function f(x)=[tex]\sqrt{x-2}[/tex]
Domain is that the value of x which we put within the function to induce the various values and range is that the value which we get after putting the worth.
f(x)=[tex]\sqrt{x-2}[/tex]
put the function =0
squaring either side we get
x-2=0
x=2
So the domain of the function f(x)=[tex]\sqrt{x-2}[/tex] is [2,∞) because we are able to put all values greater than 2 within the function.
Hence the domain of the function is [2,∞).
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There are 27000lb of wheat to be transported, the transport company wants to know how many metric tonnes of wheat they would be transporting.
Answers
Answer:
Around 12.25
Step-by-step explanation:
There are around 2205 (2204.62) lbs per metric tonnes.
So 27000/2204.62 or 27000/2205 gives you between 12.24-12.25
Find m∠PQR.
A. 90
B. 77
C. 81
D. 72
Answers
Answer:
D) 72°
Step-by-step explanation:
Tangent:
[tex]\sf \boxed{\angle PQR =\dfrac{Difference \ between \ major \ arc \ and \ minor \ arc }{2}}[/tex]
∠PQR = 2x + 252 - (2x + 108)
2x +72 = (2x + 252 - 2x - 108) ÷ 2
2x + 72 = (2x - 2x + 252 - 108) ÷ 2
2x + 72 = 144 ÷ 2
2x + 72 = 72
2x + 72-72 = 72 - 72
2x = 0
[tex]\sf \boxed{\bf x = 0}[/tex]
m∠PQR = 2x + 72
= 2*0 + 72
= 72°
The following graph describes function 1, and the equation below it describes function 2. Determine which function has a greater maximum value, and provide the ordered pair. (1 point)
Function 1
graph of function f of x equals negative x squared plus 8 multiplied by x minus 15
Function 2
f(x) = −x2 + 2x − 3
Function 1 has the larger maximum at (1, 4).
Function 1 has the larger maximum at (4, 1).
Function 2 has the larger maximum at (1, −2).
Function 2 has the larger maximum at (−2, 1).
Answers
Answer:
Function 1 has the larger maximum at (4, 1)
Explanation:
After observation, graph of function 1 has vertex at Maximum (4, 1)
In order to find vertex of function 2, complete square the equation.
f(x) = -x² + 2x - 3
f(x) = -(x² - 2x) - 3
f(x) = -(x - 1)² - 3 + (-1)²
f(x) = -(x - 1)² - 2
Vertex form: y = a(x - h)² + k where (h, k) is the vertex
So, here for function 2 vertex: Maximum (1, -2)
Conclusion:Function 1 = Maximum (4, 1), Function 2 = Maximum (1, -2)
Function 1 has greater maximum value of (4, 1) as "1 is greater than -2"
Predict the products of the double replacement reactions given. Check to see that the equations are
balanced.
AgNO3 + NaCl ?
O AgNa+CINO3
O NaNO3 + AgCl (s)
O2NaNO3 + 3AgCl (s)
O Ag+ NaNO3
Answers
The balanced equation for the given reaction [tex]\mathbf{AgNO_3+NaCl \to AgCl_{(s)} + NaNO_3}[/tex]
What is a double replacement reaction?A double replacement is a chemical reaction that takes place in which two reactants swap cations or anions to produce two distinct products.
Whenever the cations representing one of the reactants interact with the anions from another reactant to produce an insoluble ionic compound, a precipitate occurs.
The balanced equation for the given reaction:
[tex]\mathbf{AgNO_3+NaCl \to AgCl_{(s)} + NaNO_3}[/tex]
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Determine the equation of the parabola shown in the diagram in factored form. (check picture below)
Answers
Answer:
[tex](x+1)(x-3)[/tex]
Step-by-step explanation:
A quadratic in factored form is usually expressed as: [tex]a(x\pm a)(x \pm b)[/tex] where the sign of a and b depends on the sign of the zero. And I said "usually" since sometimes the x will have a coefficient. Anyways in the quadratic there are two zeroes at x=-1 and x=3. This can be written as: [tex]a(x+1)(x-3)[/tex]. Notice how the signs are different? This is because when you plug in -1 as x you get a factor of (-1+1) which becomes 0 and it makes the entire thing zero since when you multiply by 0, you get 0. Same thing for the x-3 if you plug in x=3. Now a is in front and it can influence the stretch/compression. To find the value of a, you can take any point (except for the zeroes, because it will make the entire thing zero, and you can technically input anything in as a)
I'll use the point (1, -4) the vertex
-4 = a(1+1)(1-3)
-4 = a(2)(-2)
-4 = -4a
1 = a. So yeah the value of a is 1
So the equation is just: [tex](x+1)(x-3)[/tex]
How many values of x will satisfy the equation |x-1| = | x+3|
Answers
The value of x that will satisfy the equation is x=-1.
We have given that,
[tex]\left|x-1\right|=\left|x+3\right|[/tex]
We have to solve the above inequality
What is inequality?
Inequality is a relation that makes a non-equal comparison between two numbers or other mathematical expressions.
Find the positive and negative intervals
[tex]x < -3,\:\:-3\le \:x < 1,\:\:x\ge \:1[/tex]
Solve the inequality for each interval
[tex]x < -3,\:\:-3\le \:x < 1,\:\:x\ge \:1[/tex]
[tex]\mathrm{No\:Solution}\quad \mathrm{or}\quad \:x=-1[/tex]
Therefore we get,
[tex]x=-1[/tex]
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calculate AC to 1 decimal place ?
Answers
Step-by-step explanation:
first we need to find the length of CD, so that we can use Pythagoras to find AC.
to get CD we use again Pythagoras. there is a smaller right-angled triangle on top of the BCD rectangle.
so, AD = 11 = 4 + 7
7 = the vertical leg of the upper right-angled triangle.
the horizontal leg is congruent to CD and is
sqrt(16² - 7²) = sqrt(256 - 49) = sqrt(207).
AC² = sqrt(207)² + 11² = 207 + 121 = 328
AC = sqrt(328) = 18.11077028... cm ≈ 18.1 cm
Select the correct answer.
Which function has zeros at -2, -1, and 4?
Answers
Answer: Option (4)
Step-by-step explanation:
We need factors of [tex](x+2), (x+1), (x-4)[/tex]
Please Help I would really appreciate it
Answers
By evaluating in x = 25 we get:
∠1 = 120°∠2 = 60°How to get the angles?Here we know that the measure of angle 1 is given by:
∠1 = 5x - 5
And the given value of x is 25, then if we just evaluate the above expression, then we get:
∠1 = 5*25 - 5 = 120
And for angle 2 we will have:
∠2 = 2*25 - 10 = 60
Notice that the sum of these two angles is equal to 180°, which is what we should get when adding two supplementary angles.
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$1,000 is deposited into a savings account. interest is compounded annually. after 1 year, the value of the account is $1,020. after 2 years, the value of the account is $1,040.40. this scenario can be represented by an exponential function of the form f(x)=1000(b)^x , where f(x) is the amount in the savings account, and x is time in years. what is the value of b ?
Answers
The value of b is [tex]1 \cdot02[/tex].
What is compound interest?
Compound interest is when you earn interest on both the money you have saved and the interest you earn.
Formula for compound interest is
[tex]A= P(1+\frac{r}{100})^n[/tex] ...................(1)
where, A = total amount( principal + interest )
r = rate of interest in compound interest
n = number of years
Given,
For [tex]n=1[/tex]
Principal amount [tex]p=\$ 1000[/tex]
Total amount [tex]A=\$ 1020[/tex]
For [tex]n=2[/tex]
Principal amount [tex]p=\$ 1000[/tex]
Total amount [tex]A=\$ 1040[/tex]
This scenario can be represented by an exponential function of the form of [tex]f(x)=1000(b)^x[/tex]
Comparing the above function with equation (1), we get
[tex]A=f(x)\\P=1000\\b=(1+\frac{r}{100})[/tex]
For 1st year
[tex]f(x)=1000(b)^1\\\Rightarrow 1020=1000(b)\\\Rightarrow b=\frac{1020}{1000}\\\Rightarrow b= \frac{102}{100}\\\Rightarrow b= 1\cdot02[/tex]
now, check the amount for 2nd year
[tex]f(x)=1000 \times (1 \cdot01}^2\\\Rightarrow f(x)=1000 \times \frac{102}{100}\times \frac{102}{100}\\\Rightarrow f(x)=1040[/tex]
Hence, the value of b is [tex]1 \cdot02[/tex] .
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A state patrol officer saw a car start from rest at a highway on ramp. She radioed ahead to a highway patrol officer 30 miles along the highway. When the car reached the location of the second officer 28 minutes later, it was clocked going 60 mph. The driver of the car was given a ticket for exceeding the 60 mph speed limit. Why can the office conclude the driver exceeded the speed limit
Answers
The office concluded that the driver exceeded the speed limit by 64.3mi/h.
Given that the second cop, who arrived 28 minutes later, was recorded traveling at 60 mph while the patrol officer was traveling 30 miles along the roadway.
According to the mean value theorem, There exists a value of x = c such that f'(c) = [f(b)-f(a)][b-a] if f(x) is continuous on the closed interval [a,b] and differentiable on the open interval (a,b).
This implies the following in "lay man's" terms:
the instantaneous speed (the speed at any given time) must be equal to his average speed
Since the driver is driving along the highway, we can assume his position to be continuous and differentiable
his average speed is defined as:
average speed=[x(b)-x(a)]÷[b-a] where x represents his position
average speed=[30 - 0]÷[(28÷60) - 0]
average speed=30÷0.466
average speed=64.3mi/hr
Since the time is given in minutes, we convert it in hours by dividing it by 60.
Therefore, by the MVT the police officers can determine that at some point in time (even though he was only driving 60mph at the second patrol officer's location) since his average speed was approximately 64.3 mi/hr there was a point in time during the 28 minutes that his speed exceeded 60 mph.
Learn more about mean value theorem from here brainly.com/question/3403246
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