Answer:
The derivative of the function:
\(f'(x)=-\dfrac{1}{2\sqrt{5-x} }\)
The tangent line of the function at the given point:
\(y=-\dfrac{1}{6}x-\dfrac{25}{3}\)
Step-by-step explanation:
Find the equation of the tangent line of the given function using the given point.
\(f(x)=6+\sqrt{5-x}; \ (x,y)=(-4,9)\)
\(\hrulefill\)
To find the equation of the tangent line to a function at a given point, follow these step-by-step instructions:
Step 1: Identify the point of tangency
Determine the x-coordinate of the point of tangency. Let's call it x₀.Find the corresponding y-coordinate of the point of tangency. Let's call it y₀.Step 2: Find the derivative of the function
Calculate the derivative of the given function. Let's denote it as f'(x).Step 3: Substitute the x-coordinate into the derivative
Replace the variable x in the derivative function f'(x) with the x-coordinate of the point of tangency (x₀).Evaluate the derivative at x₀ to find the slope of the tangent line. Let's denote it as m.Step 4: Write the equation of the tangent line
Use the point-slope form of a line: y - y₀ = m(x - x₀).Substitute the values of m, x₀, and y₀ into the equation.Simplify and rearrange the equation to obtain the final form.Step 5: Optional - Simplify the equation
If necessary, simplify the equation by performing any algebraic manipulations.Step 6: Optional - Verify the equation
Check the obtained equation by plugging in other points along the tangent line and ensuring they satisfy the equation.\(\hrulefill\)
Step 1:
\((x_0,y_0) \rightarrow (-4,9)\)
Step 2:
\(f(x)=6+\sqrt{5-x}\\\\\\\Longrightarrow f(x)=6+(5-x)^{1/2}\\\\\\\Longrightarrow f'(x)=\dfrac{1}{2} (5-x)^{1/2-1} \cdot -1\\\\\\\therefore \boxed{f'(x)=-\dfrac{1}{2\sqrt{5-x} } }\)
Step 3:
\(f'(x)=-\dfrac{1}{2\sqrt{5-x} } ; \ (-4,9)\\\\\\\Longrightarrow f'(-4)=-\dfrac{1}{2\sqrt{5-(-4)} } \\\\\\\Longrightarrow f'(-4)=-\dfrac{1}{2\sqrt{9}} \\\\\\\Longrightarrow f'(-4)=-\dfrac{1}{2(3)} \\\\\\\therefore \boxed{ f'(-4)=m=-\dfrac{1}{6} }\)
Step 4 and 5:
\(y-y_0=m(x-x_0)\\\\\\\Longrightarrow y-9=-\dfrac{1}{6}(x-(-4)) \\\\\\\Longrightarrow y-9=-\dfrac{1}{6}(x+4) \\\\\\\Longrightarrow y-9=-\dfrac{1}{6}x-\dfrac{2}{3}\\\\ \\\therefore \boxed{\boxed{ y=-\dfrac{1}{6}x-\dfrac{25}{3}}}\)
Thus, the problem is solved.
please please help last text then finals l give brainliest
1. The x - intercepts of the parabola are
x = 2.5 s and x = 7.5 s2. The meaning of the x-intercepts are the plane takes of at x = 2.5 s and lands at x = 7.5 s
3. The vertex of the parabola is at (5, 80).
What is a parabola?A parabola is a curved shape
1. Given the parabola above, to find the x - intercepts, we proceed as follows.
The x-intercepts are the points at which the graph cuts the x-axis.
They are
x = 2.5 s and x = 7.5 s2. The meaning of the x-intercepts in this problem are the points where the plane takes off and lands on the ground.
The plane takes of at x = 2.5 s and lands at x = 7.5 s
3. The vertex is the maximum point on the graph.
So, we see that the vertex is at x = 5 s and y = 80 ft
So, the vertex is at (5, 80).
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PLEASE HELP THIS IS HARD
The Area of the shaded portion is: 72 square inches
What is the Area of the shaded region?The formula for the area of a triangle is given by the formula:
Area = ¹/₂ * base * height
Now, to get the area of the shaded portion, we will get the area of the larger triangle and subtract the area of the smaller one from it.
Thus:
Area of larger triangle = ¹/₂ * 17 * 13 = 110.5 square inches
Area of smaller triangle = ¹/₂ * 11 * 7 = 38.5 square inches
Thus:
Area of shaded portion = 110.5 square inches - 38.5 square inches
Area of shaded portion = 72 square inches
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Read the excerpt from Spencer's narrative.
As we waited for our new football coach to enter the locker room, we all secretly wondered what he would be like. Would he be tough but fair? Would he be demanding but understanding? Would he motivate us before each game with a rousing speech the way Coach Jackson always had? These thoughts were abruptly interrupted when our new coach entered the locker room, stood before us, and commanded our attention. "He" was a "she"! Our new coach was a female? Stunned, my mouth gaping, I barely heard what she said to the team next.
Which element of a personal narrative would be best for Spencer to include next?
a paragraph that clearly establishes the narrative’s point of view
engaging dialogue that tells the reader what the coach says to the team
a thoughtful reflection that explains what the coach teaches Spencer
detailed descriptions of each player’s reaction to the new coach
A thoughtful reflection that explains what the coach teaches Spencer would be best for Spencer to include next.
What is narrative?Writing that tells a tale or narrates a series of events is referred to as a narrative. It can be either nonfiction or fiction, and it can come in a variety of formats, including novels, short stories, memoirs, and personal essays.
Writing that is focused on the author's own experiences and frequently includes observations or insights on those experiences is known as personal narrative.
Spencer would do well to offer a thorough reflection that outlines what the coach teaches him.
Thus, this would shed light on Spencer's interactions with the new coach as well as the team's overall reaction to her. Additionally, it would advance the story and give the reader a better grasp of the predicament.
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Would like some help, please
The z-score for Alexandria's test grade is 0.95 standard deviations.
What is standard deviation ?
Standard deviation is a measure of the amount of variation or dispersion in a set of data. It tells us how spread out the data is from the mean or average value. A low standard deviation indicates that the data points are close to the mean, while a high standard deviation indicates that the data points are spread out over a wider range of values.
To calculate the standard deviation, we first find the mean of the data. Then, for each data point, we subtract the mean and square the difference. We take the average of these squared differences, and then take the square root of that average. This gives us the standard deviation.
a) The z-score for Alexandria's test grade can be calculated using the formula:
z = (x - μ) / σ
where x is the test score, μ is the mean of the Math test scores, and σ is the standard deviation of the Math test scores.
Plugging in the values, we get:
z = (82 - 71.5) / 11.1 = 0.95
So Alexandria's test score is 0.95 standard deviations above the mean of the Math test scores.
b) The z-score for Christina's test grade can be calculated in the same way:
z = (x - μ) / σ
where x is the test score, μ is the mean of the Science test scores, and σ is the standard deviation of the Science test scores.
Plugging in the values, we get:
z = (61.2 - 62.2) / 8.2 = -0.12
So Christina's test score is 0.12 standard deviations below the mean of the Science test scores.
c) To determine who did relatively better, we need to compare the z-scores for Alexandria and Christina. Alexandria's z-score of 0.95 indicates that her test score is above average compared to the other Math test scores. Christina's z-score of -0.12 indicates that her test score is slightly below average compared to the other Science test scores. Therefore, Alexandria did relatively better than Christina.
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What is an example of "A one-to-one function of P onto Q is an isomorphism of P and Q "?
An example of a one-to-one function that is an isomorphism between sets P and Q is the function f: P -> Q defined as f(x) = 2x, where P and Q are the sets of integers.
How to Identify a One-to-One Function?An example of a one-to-one function that is an isomorphism between sets P and Q is the function f: P -> Q defined as f(x) = 2x, where P and Q are the sets of integers.
This function is one-to-one because for every element x in P, there is a unique element 2x in Q. It is onto because every element y in Q has a preimage x in P such that f(x) = y (e.g., y/2 = x).
Furthermore, this function preserves the group structure between P and Q, as it satisfies the properties of an isomorphism. In this case, the group structure is addition, and the function f preserves addition: f(x + y) = 2(x + y) = 2x + 2y = f(x) + f(y) for all x, y in P.
Therefore, the function f: P -> Q defined as f(x) = 2x is an example of a one-to-one function that is an isomorphism between sets P and Q.
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The Parker company employs 68 part time workers. If this represents 4% of the total work force, how many individuals work for the company?
Answer: ite will be 3 bc i done that all ready
Step-by-step explanation:
The number of individuals that work for the company is 272 workers.
Given,
The Parker company employs 68 part-time workers.
This represents 4% of the total workforce.
We need to find out how many individuals work for the company.
What is percentage?Percentage is a fraction or a ratio in which the value of whole is always 100.
Find the total workforce.
Total workforce = 100%
We have,
4% = 68 workers
Multiply 25 on both sides.
25 x 4% = 4 x 68 workers
100% = 272 workers.
This means the number of individuals that work for the company is 272 workers.
Thus the number of individuals that work for the company is 272 workers.
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Answer correctly for brainliest I dont want to rush you but i need this in like 1-2 minutes
Answer:
the correct answers are A, C, and D
Step-by-step explanation:
Those are the only ones that make sense enough!
What is the average height of 6th grade students?
And
What was the low temperature...?
Those responses will be given as numerical values
E.G. 162cm or 2 degrees Celsius (2*C)
(Edit: the first & third options are the correct ones)
Hope this helps!
will give brainliest
The sum of the two rational equations is equal to (3 · n² + 5 · n - 10) / (3 · n³ - 6 · n²).
How to simplify the addition between two rational equations
In this question we must use algebra definitions and theorems to simplify the addition of two rational equations into a single rational equation. Now we proceed to show the procedure of solution in detail:
(n + 5) / (n² + 3 · n - 10) + 5 / (3 · n²) Given(n + 5) / [(n + 5) · (n - 2)] + 5 / (3 · n²) x² - (r₁ + r₂) · x + r₁ · r₂ = (x - r₁) · (x - r₂)1 / (n - 2) + 5 / (3 · n²) Associative and modulative property / Existence of the multiplicative inverse[3 · n² + 5 · (n - 2)] / [3 · n² · (n - 2)] Addition of fractions with different denominator(3 · n² + 5 · n - 10) / (3 · n³ - 6 · n²) Distributive property / Power properties / ResultTo learn more on rational equations: https://brainly.com/question/20850120
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Find the unit rate (constant of proportionality) of the distance traveled.
Number of hours
0.25 1.5 2.5 3
Distance traveled (km) 3 18 30 36
Answer:
12.
Step-by-step explanation:
if to re-write the given condition, then
\(\frac{3}{0.25} =\frac{18}{1.5} =\frac{30}{2.5} =\frac{36}{3} ;\)
it is clear, the required constant is 12 (12 per hour).
this table shows different sizes you can order pictures in. Does this table show a proportional relationship between the height and width of a picture? explain how you know
9514 1404 393
Answer:
No, the ratios are different
Step-by-step explanation:
The first two ratios are ...
Height : Width = 3 : 2
Height : width = 6 : 4 = 3 : 2
The next two are different from those and from each other.
Height : width = 7 : 5
Height : width = 10 : 8 = 5 : 4
The different options have three different height/width ratios. The dimensions are not proportional. (If they were proportional, all ratios would be the same.)
Question 3 (1 point)
Karl wants to find the width RQ of a river. He starts at point R, and walks
perpendicular along the edge of the river 42 ft and marks point S. He then walks 28
ft further and marks point T. He turns 90° and walks until his location (point U), point
S, and point Q are collinear. Suppose TU= 68 ft. What is the width of the river in
feet?
The width RQ of the river is approximately 61.98 ft.
To find the width RQ of the river, we can use the properties of perpendicular lines and collinearity.
Given that Karl starts at point R and walks perpendicular along the edge of the river 42 ft to point S, we can draw a line segment RS of length 42 ft.
From point S, Karl walks 28 ft further to point T. We can draw another line segment ST of length 28 ft.
Now, Karl turns 90° from point T and walks until his location (point U), point S, and point Q are collinear. Let's denote the length of this line segment as UQ.
From the given information, we know that TU = 68 ft.
Since U, S, and Q are collinear, we can form a right triangle by connecting UQ and US.
The length of UQ can be found using the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
In this case, we have:
UQ² = TU² - US²
UQ² = 68² - 28²
UQ² = 4624 - 784
UQ² = 3840
Taking the square root of both sides, we have:
UQ = √3840
UQ ≈ 61.98 ft
Therefore, the width RQ of the river is approximately 61.98 ft.
Note: It's important to keep in mind that this solution assumes the river is a straight line and that Karl's path is perpendicular to the river's edge. In reality, the river's edge may not be perfectly straight, and the path Karl walks may not be exactly perpendicular.
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What is the slope of a line represented by 3x-14y=28
Answer:
3/14
Step-by-step explanation:
3x-14y=28
solve
add -3 both sides
3x−14y+−3x=28+−3x
−14y=−3x+28
divide both sides by -14
y= 3 /14 x−2
y=mx+b
so 3/14 is the slope
It costs Camp, Inc. $38 per unit to manufacture 1,000 units per month of a product that it can sell for $54 each. Alternatively, Camp could process the units further into a more complex product, which would cost an additional $33 per unit. Camp could sell the more complex product for $81 each. How would processing the product further affect Camp's profit?
Further processing of the product will lead to a decrease Camp in profit by $6,000.
What is profit?Profit is the money left with a company after paying for business expenses from the question;
In the first scenarioWe calculate the profit as;So, Profit in current = 1,000 units × ( $54 - $38)= $16,000In the second scenario;
If we process further, than the profit will be as follows:
Profit after processing = 1,000 units × ( $81 - ( $38 + $33))
= 1,000 units × ( $81 - $71)= $10,000
So, Change in profit = $10,000 - $16,000 = -$6,000 (negative shows decrease)So, Further processing will decrease profit by $6,000.
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The Fibonacci sequence is 0, 1, 1, 2, 3, 5, 8, 13, . . . (where F0 0).
(a) Give the recursive definition for the sequence.
(b) Write out the first few terms of the sequence of partial sums: 0, 0 + 1, 0 + 1 + 1,. . .
(c) Give a closed formula for the sequence of partial sums in terms of Fn (for example, you might say F0 + F1 + · · · + Fn 3F 2 n−1 + n, although that is definitely not correct).
(Discrete Mathematics)
The Fibonacci sequence is the sequence in which the numbers are written such that each succeeding number is sum of two preceding numbers.
The Fibonacci sequence is defined recursively as follows:
F0 = 0
F1 = 1
For n > 1, Fn = Fn-1 + Fn-2
(b) The sequence of partial sums is:
S0 = 0
S1 = 0 + 1 = 1
S2 = 0 + 1 + 1 = 2
S3 = 0 + 1 + 1 + 2 = 4
S4 = 0 + 1 + 1 + 2 + 3 = 7
S5 = 0 + 1 + 1 + 2 + 3 + 5 = 12
(c) A closed formula for the sequence of partial sums in terms of Fn is not possible, since the sequence of partial sums depends on the values of all previous terms in the Fibonacci sequence. However, it is possible to express the nth term of the sequence of partial sums, Sn, in terms of the nth term of the Fibonacci sequence, Fn, using the following formula:
Sn = F0 + F1 + ... + Fn = (F0 + F1) + (F1 + F2) + ... + (Fn-1 + Fn) = F1 + F2 + ... + Fn + F0 + F1 + ... + Fn-1 = 2Sn-1 - Fn + F0
This formula can be derived by considering the previous term in the sequence of partial sums and adding the current term of the Fibonacci sequence to it.
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A package contains 20 golf balls. The total
weight of the golf balls is 32 ounces. Use the
model to show the number of ounces per
golf ball and the number of golf balls per
ounce. Write your answers in the blanks.
Answer: 1.6
Step-by-step explanation:
each golf is 1.6 ounces and you 20 golf balls in order to reach 32 ounces
Answer:
shown below
Step-by-step explanation:
golf balls per ounce = 5/8 or 0.625
ounces per gold ball = 8/5 or 1.6
Estimate how many times larger 5x10^8 is than 24x10^6?
A) 10 times larger
B) 20 times larger
C) 50 times larger
D) 100 times larger
Answer:
20times bc u times 5 by 10 then divide 8 u get 6.2
Alondra is asked about her age. She answers as follows. "My age is 6 more than four times the age of my son." How old is her son if Alondra is 46 years old?
Answer:
10 years old
Step-by-step explanation:
lets break it down:
6 more means +6
four times means *4
so if her son is x years old, she is 4x+6
since we know she's 46, we know that 4x+6=46
now we just solve the equation
4x+6=46
-6 on both sides
4x=40
/4 on both sides
x=10
help help help help help
Answer:
the answer is going to be D. (3,4,5,8,9,3)
Find the missing side. 31° Z z = [?] Round to the nearest tenth. Remember: SOHCAHTOA 21
A²+B²= C²
31²+ 21²= z²
961+441 = z²
1402= z²
z= 37.443290454
I NEED YOUR HELP!! I'LL. GIVE YOU BRAINLIEST
Answer: ∠16 and ∠11
Step-by-step explanation:
All of these answer options include ∠16, so we know we're looking for an angle that is corresponding to ∠16. A corresponding angle is an angle that is in the same relative position. We will look at ∠9, ∠11, ∠2, and ∠12 since those are the given answer options, and see which is corresponding.
The correct corresponding angles are ∠16 and ∠11.
Find the size of angle x. ✓ 124 x
initially, there were the same number of blue marbles and red marbles in a bag. John took out 5 blue marbles and there were twice as many red marbles as blue marbles in the bag. How many red marbles are there in the bag?
what is 1+1
I NEED HELP
Answer:
2
Step-by-step explanation:
1+1
2
This question is so hard
Any number times one equals itself, and any number multiplied by two equals itself plus itself, so 1*2=2 and 1*2=1+1. The transitive property of equality states that if x=y and y=z then x=z. Since both 1+1 and 2 are equal to 1*2, they must be equal to each other, so 1+1=2.
The answer is 2
Find the volume of the solid formed by rotating the region inside the first quadrant enclosed by
y=x4 and y=125x
The volume of the solid formed by rotating the region inside the first quadrant enclosed by y=x⁴ and y=125x is 138438\(\pi\).
Let,
f(x) = 125x
g(x) = x⁴
Intersection points will be,
x⁴ = 125x
x = 0 , 3.3437
Volume V = \(\pi\)\(\int\limits^{3.34}_0{(125x)^{2} - x^8 } \, dx\)
=\(\pi\)\(\int\limits^{3.34}_0 {15625x^2-x^8} \, dx\)
=\(\pi\)[15625x³/3 - x⁹/9]₀³
=\(\pi\)[140625 - 2187]
= 138438\(\pi\)
The volume of the solid formed by rotating the region inside the first quadrant enclosed by two curves can be found using the method of cylindrical shells. This method involves cutting the solid into thin cylindrical shells and finding the volume of each shell. The sum of the volumes of the shells is equal to the volume of the solid.
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Penelope goes out to lunch. The bill, before tax and tip, was $16.05. A sales tax of 3% was added on. Penelope tipped 18% on the amount after the sales tax was added. How much tip did she leave? Round to the nearest cent.
Answer:
2.98
Step-by-step explanation:
First find 3% of 16.05 which is 0.48.
Then add 0.48 to 16.05 which is 16.53.
Then multiply .18 by 16.53 which gets you 2.98
Hope it helps
Answer:
To find the amount of the sales tax, we need to multiply the bill amount by the tax rate of 3% or 0.03:
Sales tax = 0.03 x $16.05 = $0.48
To find the total amount of the bill after the sales tax was added, we need to add the bill amount to the sales tax:
Total bill = $16.05 + $0.48 = $16.53
To find the amount of the tip, we need to calculate 18% of the total bill after the sales tax was added:
Tip = 0.18 x $16.53 = $2.98
Rounding to the nearest cent, Penelope left a tip of $2.98.
Step-by-step explanation:
Probability of getting one 6 on fours rolls of a single die?
The probability of getting one 6 on four rolls of a single die is 0.517
The number of rolls = 4
The probability of getting one 6 on four rolls of a single die = 1 - The probability of not getting one 6 on four rolls of a single die.
We know probability = Number of favorable outcomes / Total outcomes
In first throw,
The probability of not getting the number 6 = 5/6
Next three throws are independent events
Therefore,
The probability of not getting one 6 on four rolls of a single die = (5/6) × (5/6) × (5/6) × (5/6) = 625/1296
The probability of getting one 6 on four rolls of a single die = 1 - 625/1296
= 671/1296
= 0.517
Hence, the probability of getting one 6 on four rolls of a single die is 0.517
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help What is the perimeter of a rectangle with a length of Four and two-fifths inches and a width of Five and three-fourths inches?
Nine and ten-eighteenths inches
Twelve and eleven-fifteenths inches
Eighteen and five-ninths inches
Twenty and six-twentieths inches
The perimeter of the rectangle is Twenty and six-twentieths inches. Option D
How to determine the perimeterThe formula for calculating the perimeter of a rectangle is expressed as;
P = 2(l + w)
Where;
P is the perimeterl is the lengthw is the widthNow, we have that;
Length = 4 2/5
Length = 22/5
Width = 5 3/4
Width = 23/4
Substitute the values
Perimeter = 2(22/5 + 23/4)
multiply
Perimeter = 2( 88 + 115/20
expand the bracket
Perimeter = 2(203/20)
Perimeter = 20 3/20
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10(-b+3b-5)-8b Help please
Identify the rule for the transformation shown in the
figure that translates triangle ABC into triangle A'B'C'.
(x, y) + (x - 4, y-2)
O (x, y) = (x +4, y-2)
O (x, y) + (x -- 4, y + 2)
(x,y) → (x +4, y + 2)
Answer:
the answer is d
Step-by-step explanation:
i got it right on edge 2021
(x,y) → (x +4, y + 2) is the rule for the transformation shown in the figure that translates triangle ABC into triangle A'B'C'. Therefore, the correct option is option D.
What is mathematical transformation?A transformation in mathematics is a function f which projects a set X to it only, i.e., f: X X. This function typically has some geometrical foundation. Examples include geometric transformations, such as spatial transformations, affine transformations, including particular affine transformations like rotations, reflections, and translations, as well as linear transformations of vector spaces.
Although it is usual to refer to any function of a set within itself as a "transformation," particularly in phrases like "transformation semigroup" or related expressions, there is another type of terminological norm in which the word "transformation" is exclusively used to refer to bijections. (x,y) → (x +4, y + 2) is the rule for the transformation shown in the figure that translates triangle ABC into triangle A'B'C'.
Therefore, the correct option is option D.
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find the value of x
Answer:
The triangles are similar by AA since vertical angles are congruent.
\( \frac{8}{12} = \frac{x}{7} \)
\(12x = 56\)
\(x = \frac{14}{3} = 4 \frac{2}{3} \)