Answer: 14n or (14×n)
Step-by-step explanation:
Let f(x)= 4x³ −8x, find f'(4) f′(4) = −194 f′(4) = 607 f′(4 )= −354 f′(4) = 184
The derivative of the function f(x) = 4x³ - 8x, evaluated at x = 4, is f'(4) = 184. This means that at x = 4, the rate of change of f(x) is 184 units per unit of x.
The derivative of a function measures the rate at which the function is changing at a specific point. In this case, we are given the function f(x) = 4x³ - 8x and asked to find its derivative at x = 4, denoted as f'(4).
To find the derivative of f(x), we can apply the power rule of differentiation. According to the power rule, if we have a term of the form axⁿ, the derivative is given by d/dx(axⁿ) = naxⁿ⁻¹. Applying this rule to each term in f(x), we get:
f'(x) = d/dx(4x³) - d/dx(8x)
= 3(4)(x²) - 8
= 12x² - 8
Now, to find f'(4), we substitute x = 4 into the derivative expression:
f'(4) = 12(4)² - 8
= 12(16) - 8
= 192 - 8
= 184
Therefore, the main answer is f'(4) = 184.
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prove that 3 divides n3 +2n whenever n is a positive integer.
To prove that 3 divides n^3 + 2n for any positive integer n, we need to show that there exists an integer k such that n^3 + 2n = 3k.
Let's proceed with the proof using mathematical induction:
Base case:
For n = 1, we have 1^3 + 2(1) = 1 + 2 = 3, which is divisible by 3. So the statement holds true for n = 1.
Inductive hypothesis:
Assume that the statement holds true for some positive integer k, i.e., k^3 + 2k = 3m, where m is an integer.
Inductive step:
We need to prove that the statement holds true for k + 1, i.e., (k + 1)^3 + 2(k + 1) = 3p, where p is an integer.
Expanding the expression (k + 1)^3 + 2(k + 1):
= k^3 + 3k^2 + 3k + 1 + 2k + 2
= (k^3 + 2k) + 3k^2 + 3k + 3
= 3m + 3k^2 + 3k + 3
= 3(m + k^2 + k + 1)
From the inductive hypothesis, we know that k^3 + 2k = 3m. Substituting this in the above expression:
= 3m + 3k^2 + 3k + 3
= 3(m + k^2 + k + 1)
We can see that the expression is a multiple of 3, with (m + k^2 + k + 1) as the coefficient.
Since m, k, and 1 are integers, (m + k^2 + k + 1) is also an integer. Therefore, (k + 1)^3 + 2(k + 1) is divisible by 3.
By using mathematical induction, we have proved that for any positive integer n, 3 divides n^3 + 2n.
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factor the trinomial below. x^2+13x+42
Answer:
(x + 6)(x + 7)
Step-by-step explanation:
To factor the trinomial x^2 + 13x + 42, we need to find two numbers that multiply to 42 and add up to 13.
One way to do this is to list all the pairs of factors of 42 and see which pair adds up to 13:
1, 42 -> 1 + 42 = 43
2, 21 -> 2 + 21 = 23
3, 14 -> 3 + 14 = 17
6, 7 -> 6 + 7 = 13
So the pair of factors that we want is 6 and 7. We can use these numbers to rewrite the middle term of the trinomial:
x^2 + 13x + 42 = x^2 + 6x + 7x + 42
Next, we can group the first two terms and the last two terms:
x^2 + 6x + 7x + 42 = (x^2 + 6x) + (7x + 42)
Now, we can factor out the greatest common factor from each group:
x(x + 6) + 7(x + 6)
Notice that we have a common factor of (x + 6) in both terms. We can factor this out:
(x + 6)(x + 7)
help me plz I need it I'm very desperate help
Answer:
1/45
Step-by-step explanation:
There are 10 marbles
P ( yellow) = yellow marbles / total = 2/10 = 1/5
We do not replace the marble
There are 9 marbles, 1 of which is yellow
P ( yellow) = yellow marbles / total = 1/9
P ( yellow, no replacement, yellow) = 1/5 * 1/9 = 1/45
15x = -60 I don’t get how to do to
Answer:
x = -4
Step-by-step explanation:
15x = -60
move 15 over and divide 60 by it
x = -60/15
then solve
x = -4
Answer:
x=-4
Step-by-step explanation:
first let's solve 15x for 60 so solving for the valuable "x" we move all terms containing x to the left and all other terms to the right. Dividing each side by 15 so x is negative 4
Solve by completing the square.
Answer:
x = ± √ 22 − 3
Step-by-step explanation:
What is the factored form of the following expressions?
x2 – 10xy + 24y2
Answer:
(x-6y)(x-4y)
Step-by-step explanation:
Enter a number.
Angle 7 is equal to angle ___
T-T
Answer:
Angle 7 is equal to angle 1
SIMPLIFY OR COMBINE LIKE TERMS!!!
5ab^2- 12a^2b+ 3ab+ab^2+4a^2b
Answer:
Step-by-step explanation:
can you guys please answer this? its timed so dont take too long!
The expression -2x³ + 13x² + 3x + 50 is equivalent to 10 - (2x³ + 11x² - 2x - 35) + (x + 5) + 6(4x²
Equivalent ExpressionAn algebraic expression is an expression which consists of variables, coefficients, constants, and mathematical operators such as addition, subtraction, multiplication and division. Generally, if two things are the same, then it is called equivalent. Similarly, in mathematics, the equivalent expressions are the expressions that are the same, even though the expression looks different. But if the values are plugged in the expression, both the expressions give the same result.
Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value for the variable.
In the given expression;
10 - (2x³ + 11x² - 2x - 35) + (x + 5) + 6(4x²); this can be reduced or simplified to -2x³ + 13x² + 3x + 50
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What is 1 3/8 as an improper fraction ?
Answer: 11/8
Step-by-step explanation:
1. Multiply the whole number by the denominator: 8•1=8
2. Add the numerator to the sum of the whole number and denominator: 8+3=11
3. Put the original denominator as the denominator, again: 11/8
hope this helps a bit lol
4s4 17s2 14s 2 = (2s3 3s2-4s 1)(x)
The required difference of the polynomial functions is -9s^2 + 4s - 2
Given the following difference of polynomial expressed as:
(–6s2 + 12s – 8) – (3s2 + 8s – 6)
We are to find the difference
(–6s2 + 12s – 8) – (3s2 + 8s – 6)
Expand
–6s^2 + 12s – 8 - 3s^2 - 8s + 6
Collect the like terms
–6s^2- 3s^2 + 12s - 8s - 8 + 6
-9s^2 + 4s - 2
Hence the required difference of the polynomial functions is -9s^2 + 4s - 2
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complete question
Find each difference.
(–6s2 + 12s – 8) – (3s2 + 8s – 6) =
–9s2 + 4s – 14
–9s2 + 4s – 2
–9s2 + 20s – 14
–9s2 + 20s – 2
The probability of a Type II error is represented by ____. alpha beta the Type I error sigma The null hypothesis is rejected when the p-value exceeds the level of significance True False
The probability of a Type II error is represented by beta. Thus, the correct answer is option B.
Beta represents the probability of failing to reject the null hypothesis when it is false.
On the other hand, Type I error (alpha) represents the probability of rejecting the null hypothesis when it is true. A Type II error occurs when a false null hypothesis is not rejected. Hence, beta is the probability of making a Type II error.
The null hypothesis is rejected when the p-value is less than or equal to the level of significance, not exceeds it.
The p-value is the probability of obtaining a result as extreme as or more extreme than the observed result when the null hypothesis is true. If the p-value is less than the level of significance, the null hypothesis is rejected, and vice versa.
Hence, the statement "The null hypothesis is rejected when the p-value exceeds the level of significance" is false.
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Which function is shown in the graph below?
Since 9 a.m. the temperature outside has been decreasing 4°F every hour. What is the change in
temperature at 12 p.m.?
first I needa know what the starting temp is? is it 4? or?? because if it's 4 then its -12
Enter the correct answer in the box. The graph shows function j, a transformation of f(x)= x^1/2
The required equation function j which is the transformation of \(f(x)= x^{1/2}\) is \(j(x)= (x+2)^{1/2}\) .
As we can see in the graph the functions j and f are similar but the graph of j is 2 units left of f. So, function f(x) has a domain of real number greater than equal to zero, while as the function j is 2 units left of f then its equation is given as \(j(x)= (x+2)^{1/2}\) where the domain of j is all real numbers greater then or equal to -2.
Thus, the equation of function j is the transformation of \(f(x)= x^{1/2}\) is \(j(x)= (x+2)^{1/2}\) .
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In the question the graph is missing, a graph has been added on behalf of the incomplete question.
Four dozen gourmet donuts cost a total of $96.96. What is the value of the constant of proportionality that relates the total cost of the donuts, y, to the number of donuts, x?
The constant of proportionality is 2.02.
What is proportion?According to the concept of proportion, two ratios are in proportion when they are equal.
Two ratios or fractions are equal when an equation or a declaration to that effect is utilised. A mathematical comparison of two numbers is called a proportion. According to proportion, two sets of provided numbers are said to be directly proportional to one another if they increase or decrease in the same ratio. "::" or "=" are symbols used to indicate proportions.
Given:
Four dozen gourmet donuts cost a total of $96.96.
So, if y be the total cost of the donuts and x be the number of donuts.
then the proportionality is
y= kx
k= y/x
k = 96.96 / (4 x 12)
k= 96.96/ 48
k= 2.02
Hence, the constant of proportionality is 2.02.
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Li bought five lip balms. Each lip balm costs the same amount. She spent a total of $7.25.
Using the variable c to represent the cost of each lip balm, write an equation that represents the situation.
C=??
how did u get that answer=??
Answer:
Its 1.45, you didn't have to ask a question just look it up
Step-by-step explanation:
7.25-5c
What’s the answer someone please help
Answer:
Step-by-step explanation:
Ok:
1. This is a percent problem!
45/100*15=
675/100=
6.75
2. Subtract:
15-6.75=
8.25$
Answer: 8.25$
What is the value of 675 if the six was changed to 9
Answer:
975
Step-by-step explanation:
Answer:
975 what kind of question of that
A chef makes 4 cakes per day, and the chef spends 2 hours makin each cake . which equation repsenets the relationship betweeen the total number of hour the chef spends making cakes, h, and the number of days chef spends makin cakes, d
The equation that represents the relationship between the total number of hours and days is h = 8d.
What is linear equation?A straight line on a coordinate plane is described by a linear equation. It has the mathematical formula y = mx + b, where m denotes the line's slope and b its y-intercept. The largest power of the variable (in this example, y) in a linear equation with degree 1 is 1.
Given that, total number of hour the chef spends making cakes, h, and the number of days chef spends making cakes, d.
Thus, Total number of hours = (Number of cakes per day) x (Number of hours per cake) x (Number of days)
h = 4 x 2 x d
h = 8d
Hence, the equation that represents the relationship between the total number of hours and days is h = 8d.
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PLEASE HELP!!!!!!
Determine if the following statement is true or false and explain how you know: The sum of a rational number and another rational number is always rational
Answer:
Yes. In general, the set of rational numbers is closed under addition, subtraction, and multiplication; and the set of rational numbers without zero is closed under division.
Step-by-step explanation:
:)
Answer: True, because 8 + 0.5 = 8.5, which is a rational number since fractions and decimals are counted as rational numbers.
A small hair salon in denver, colorado, averages about 32 customers on weekdays with a standard deviation of 5. it is safe to assume that the underlying distribution is normal. in an attempt to increase the number of weekday customers, the manager offers a $3 discount on 5 consecutive weekdays. she reports that her strategy has worked because the sample mean of customers during this 5-weekday period jumps to 36
To get a sample mean of customers during this 5 weekdays period are 1.79.
What is standard deviation?The term standard deviation refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.
Given that,
A small hair salon in Denver, Colorado, averages about 32 customers on weekdays with a standard deviation of 5. This means that
She reports that her strategy has worked since the sample mean of customers during this 5 weekday period jumps to 36.
We also have to find a standard deviation of the sample(that is, the 5 days),
S= \(\frac{σ}{\sqrt{5} }\)
S=\(\frac{5}{\sqrt{5} }\)
S= 2.24
\(Z=\frac{X- μ}{σ}\)
Z= 36-32/2.24
Z= 1.79
Therefore, to get a sample mean of customers during this 5 weekdays period are 1.79.
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In Ms. Perron’s class, 25% of the class are boys. There are 6 boys in the class. What is the total number of students in Ms. Perron’s class?
Answer:
24
Step-by-step explanation:
25%= 1/4 of the class
1/4 *x=6
x=24
AB formed by (-6, 2) and (-2, 4) CD formed by (-1, 11) and (5, -7)
Determine if segments AB and CD are parallel, perpendicular, or neither
walter, agnes, and holly are making beaded lizards. walter has 476 green beads and 32 red beads. agnes has 104 green beads and 16 red beads. holly has 281 green beads and 80 red beads. they all share their beads so as to make the largest possible number of lizards. if a beaded lizard requires 94 green beads and 16 red beads, what is the number of green beads left over?
The number of green beads left over = 15
Walter:
Number of green beads = 476
Number of red beads = 32
Agnes:
Number of green beads = 104
Number of red beads = 16
Holly:
Number of green beads = 281
Number of red beads = 80
Total number of red beads = 32+16+80 = 128 beads
Number of red beads required for making one lizard = 16
Since 128/16 = 8 , there will be no red beads left after making 8 lizards.
Total number of green beads = 476+104+281 = 861 beads
Number of green beads required for making one lizard = 94
Now 861/94 = \(9\frac{15}{94}\)
That is , 15 is the remainder when 861 is divided by 94
So there will be 15 green beads left after making 9 lizards.
Therefore, the number of green beads left over = 15
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using the triangle 45o -45o -90o theorem solve this triangle. please
Answer:
The length of the leg is 11 units.
Step-by-step explanation:
The triangle 45 - 45 - 90 theorem states that the length of the hypotenuse is \(\sqrt{2}\) times of the length of any of the legs. Hence, we get the following expression:
\(h = \sqrt{2} \cdot l\) (1)
Where:
\(l\) - Length of the leg, in units.
\(h\) - Hypotenuse, in units.
If we know that \(h = 11\sqrt{2}\), then the length of the leg is:
\(l = \frac{h}{\sqrt{2}}\)
\(l = 11\)
The length of the leg is 11 units.
please help with my quesiton
Answer:
we know the smaller cone's height is 1/4 of 12, namely 3
Step-by-step explanation:
Because we know the radius and height of both cones, we can calculate the area of the larger one by subtracting the area of the smaller one; the Frustum's area remains.
What does it mean by implied info, also can you please tell me the answer! Thanks
Look at the pic attached
Answer:
The definition of implied is something that was hinted at or suggested, but not directly stated. When a person looks at his watch and yawns multiple times as you are talking, this is an example of a situation where boredom is implied.
Show your steps
Multiply and simplify if possible.
(3−√5)(7−√5)
The product of (3 - √5)(7 - √5) simplifies to 26 - 10√5.
To multiply and simplify the expression (3 - √5)(7 - √5), we can use the distributive property of multiplication over addition. Here are the steps:
1. Start by multiplying the first terms in each set of parentheses: 3 * 7 = 21.
2. Then multiply the outer terms: 3 * (-√5) = -3√5.
3. Next, multiply the inner terms: -√5 * 7 = -7√5.
4. Finally, multiply the last terms: -√5 * -√5 = 5.
Now we can combine these terms to simplify the expression:
21 + (-3√5) + (-7√5) + 5
Combine the like terms: 21 + 5 - 3√5 - 7√5
Combine the constants: 21 + 5 = 26.
Combine the radical terms: -3√5 - 7√5 = -10√5.
The final simplified expression is: 26 - 10√5.
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