Answer:
Step-by-step explanation:
If the graph of the parent function is shifted 7 units up and is steeper than the parent function, which of these could represent the function? answer choices.
Need help asap! Step by step please, greatly appreciated!
The value of x from the given exponential function is -8.159.
What is the exponent?Exponent is defined as the method of expressing large numbers in terms of powers. That means, exponent refers to how many times a number multiplied by itself.
The given equation is [tex]9^{3x}=4^{5x+2}[/tex].
Take the logarithm of both sides of the equation to remove the variable from the exponent.
Here, [tex]ln(9^{3x})=ln(4^{5x+2})[/tex]
x=2ln(4)/3ln(9)-5ln(4)
x= -8.159
Therefore, the value of x is -8.159.
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Leslie is a biologist. She is going to randomly select one animal from her lab to study. There are
5
55 salamanders,
3
33 crayfish, and
12
1212 minnows in her lab.
What is
P(salamander
)
P(salamander)start text, P, left parenthesis, s, a, l, a, m, a, n, d, e, r, end text, right parenthesis?
Answer:
The probability that Leslie randomly selects a salamander is
1
4
4
1
Step-by-step explanation:
In general, when we are interested in finding the probability of a event, we just need to divide the number of possibilities the event we are interested in can happens by the number of all possible results.
In this case, we have
20
20 differents animals to be chosen and we are interested in when one of the five salamanders is chosen. That is, P(salamander) =
5
20
=
1
4
20
5
=
4
1
Classify the polygon. Be as specific as possible.
Quadrilateral JKLM with JK = 10, KL = 7, ML = 10, and JM = 7
We can say that JKLM is an isosceles trapezoid, since the non-parallel sides (JK and ML) are congruent.
What is Polygon?A polygon is a closed plane figure with three or more straight sides that meet at the vertices. It is formed by connecting line segments endpoint-to-endpoint with each segment intersecting exactly two others.
The given quadrilateral JKLM has four sides, and its opposite sides are parallel.
Furthermore, since all four sides have different lengths, it is not a parallelogram.
Also, since no angles or sides are congruent, it is not a kite or a rhombus.
Therefore, the most specific classification for this quadrilateral would be a trapezoid, which is a quadrilateral with one pair of parallel sides.
To be more specific, we can say that JKLM is an isosceles trapezoid, since the non-parallel sides (JK and ML) are congruent.
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Destiny Rubio Definite Integrals of Rational Functions Feb 23, 11:55:41 AM Find the average value of the function f(x)=(12)/(x-10) from x=1 to x=7. Express your answer as a constant times ln3. Answer: ln3 Submit Answer
The Average value of the function f(x)=(12)/(x-10) from x=1 to x=7 -2 ln3.
The average value of a function f(x) over the interval [a,b] is given by the formula:
Average value = (1/(b-a)) ∫[a,b] f(x) dx
In this case, the function is f(x) = (12)/(x-10), the interval is [1,7], and we need to find the average value. Plugging in the values into the formula, we get:
Average value = (1/(7-1)) ∫[1,7] (12)/(x-10) dx
Average value = (1/6) ∫[1,7] (12)/(x-10) dx
Next, we need to find the integral of the function. We can use the formula for the integral of a rational function:
∫ (a)/(x-b) dx = a ln|x-b| + C
In this case, a = 12 and b = 10, so the integral of the function is:
∫ (12)/(x-10) dx = 12 ln|x-10| + C
Plugging this back into the formula for the average value, we get:
Average value = (1/6) (12 ln|7-10| - 12 ln|1-10|)
Average value = (1/6) (12 ln|-3| - 12 ln|-9|)
Average value = (1/6) (12 ln|3| - 12 ln|3^2|)
Average value = (1/6) (12 ln|3| - 12 (2 ln|3|))
Average value = (1/6) (12 ln|3| - 24 ln|3|)
Average value = (1/6) (-12 ln|3|)
Average value = -2 ln|3|
Therefore, the average value of the function f(x) = (12)/(x-10) from x = 1 to x = 7 is -2 ln|3|. We can express this as a constant times ln3 by factoring out the ln3:
Average value = -2 ln|3| = -2 ln3
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Let k be a field. Show that I = {p(x) ∈ k[x] : p(0) =
0} is an ideal of k[x] and
that it is a principle ideal.
I is both an ideal of k[x] and a principle ideal.
Let k be a field. The ideal of k, I = {p(x) ∈ k[x] : p(0) = 0}, is an ideal of k[x] because it satisfies the following properties:
1) Closure under addition: If p(x) and q(x) are both in I, then p(x) + q(x) is also in I. This is because p(0) + q(0) = 0 + 0 = 0, so (p + q)(0) = 0.
2) Closure under multiplication by elements of k[x]: If p(x) is in I and r(x) is any polynomial in k[x], then r(x)p(x) is also in I. This is because r(0)p(0) = 0, so (rp)(0) = 0.
Additionally, I is a principle ideal because it can be generated by a single element. In this case, the principle idea is the polynomial x, since any polynomial in I can be written as a multiple of x. For example, if p(x) = x^2 + 2x, then p(x) = x(x + 2), so p(x) is a multiple of x and is therefore in the ideal generated by x.
Therefore, I is both an ideal of k[x] and a principle ideal.
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What is the shortest distance from the point (6,5) to the line 2x+3y=1 ? (A) √13 (B) 2√13 (C) 4√13 (D) 6√13 (E) None of these
The shortest distance from a point to a line can be found by using the formula:
d = |Ax + By + C| / √(A² + B²)
where A, B, and C are the coefficients of the line equation and x and y are the coordinates of the point.
In this case, A = 2, B = 3, C = -1, x = 6, and y = 5.
Plugging these values into the formula, we get:
d = |(2)(6) + (3)(5) - 1| / √(2² + 3²)
d = |17| / √(13)
d = 17 / √(13)
d = √(13) * 17 / 13
d = √(13) * √(13) / √(13)
d = √(13)
Therefore, the shortest distance from the point (6,5) to the line 2x+3y=1 is √(13).
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Please help me I don’t want to fail
The measure of line KR is 8 inches
How to determine the measure of the length
It is important that we know the properties of an isosceles trapezoid.
Only one pair of sides are parallelNon-parallel sides are equal in measureThe diagonals are equal in measureThe opposite angles are supplementary, that is, their sum is equal to 180 degreesFrom the information given, we have that;
KR = 1/2x + 5
DH = 2x - 4
Since the non- parallel sides of an isosceles trapezoid are equal, then, we have;
KR = DH
1/2x + 5 = 2x - 4
collect the like terns, we have
1/2x - 2x = -4 - 5
x - 4x /2 = - 9
cross multiply
-3x = -18
x = 6
KR = 1/2(6) + 5 = 8 inches
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Tyee goes out to lunch. The bill, before tax and tip, was $14.20. A sales tax of 6% was added on. Tyee tipped 18% on the amount after the sales tax was added. How much tip did he leave? Round to the nearest cent.
Answer:
$4.09
Step-by-step explanation:
14.20+6% of 14.20 = 15.05
118% of 15.05= 18.29
18.29-14.20=4.09
Richard buys, fixes, resells small devices, like the Mir487, which consistently needs a transistor replaced. He can buy the transistor for $10.13 and a broken Mir487 for $29.87. Once fixed, he resells the new Mir487 for $259.93. Approximately how much profit will Richard make if he resells 30 Mir487 devices?
A. $7,200.00
B. $7,440.00
C. $6,600.00
D. $8,160.00
Richard will make a profit of $6,600.00 by selling 30 pieces of Mir487 i.e. Option C
What is Cost Price and Selling Price?The price at which any good or item is purchased at is called its Cost Price i.e. CPThe price at which any good or item is sold at is called its Selling Price i.e. SPGiven :
Price of broken transistor = $10.13
Price of Broken Mir487 = $29.87
Price of selling fixed Mir487 = $259.93
So, cost of making the product i.e. CP
= Price of Broken Mir487 + Price of broken transistor
= $29.87 + $10.13
= $40
Finally, he sells the product i.e. SP = $259.93
Profit on one product = SP - CP
= $259.93 - $40
= $219.93
Profit on 30 products = 30 * Profit on one product
= 30 * $219.93
= $6,597.9
= approximately $ 6,600.00
Thus, Richard will make a profit of $ 6,600.00 by selling 30 pieces of Mir487.
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Math part 2 question 3
The value of (g times f)(x) is 6x² + x - 2. So correct is C.
Describe Function?The input values of a function are called the domain, and the output values are called the range. The domain can be any set of values, but each input value must have a unique corresponding output value. If there are multiple input values that produce the same output value, the function is not considered to be well-defined. Functions are used to model a wide range of phenomena in many different fields, including science, engineering, and economics. They are also used in calculus to study rates of change and slopes of curves.
Overall, functions are a fundamental concept in mathematics, and have many practical applications in the real world.
To find g(x) times f(x), we need to multiply the two functions together.
(g times f)(x) = g(x) * f(x)
First, we need to find g(f(x)):
g(f(x)) = g(3x+2) = 2(3x+2) - 1 = 6x + 3
Now we can substitute this into the expression for (g times f)(x):
(g times f)(x) = g(x) * f(x) = (2x-1) * (3x+2)
Using the distributive property, we get:
(g times f)(x) = 6x² + 4x - 3x - 2 = 6x² + x - 2
Therefore, (g times f)(x) = 6x² + x - 2.
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What is the answer to the question 3 times 3
Answer: 9
Step-by-step explanation:
Answer:
Step-by-step explanation:
9
Describe the graph of y=1/2x-10 compared to the graph of y=1/x
The equation y=1/2x-10 is in the slope-intercept form while the other equation y=1/x is a hyperbola.
What is the hyperbola?A circular cone and a plane that passes through both of the cone's nappes (see cone) connect to form a hyperbola, a two-branched open curve with a conic section.
A hyperbola is made up of two mirror images of one another that resemble two infinite bows.
These two sections are known as connected components or branches.
the hyperbola's equation denoted as (xh)2a2(yk)2b2=1).
So, the equation y=1/2x-10 is in the slope-intercept form and we know the slope which is 1/2, and b which is -10 by just observing the equation.
On the other hand, y=1/x is the hyperbola.
Therefore, the equation y=1/2x-10 is in the slope-intercept form while the other equation y=1/x is a hyperbola.
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Which is the graph
F(x)=4(1/2)x
Answer:
Step-by-step explanation:
Find the common ratio of a geometric sequence, whose first term is 2 and the third term is 242.
The common ratio of the geometric sequence is 11.
What is the common ratio of the sequence?To determine the common ratio r, we can use the formula for the nth term of a geometric sequence. The formula is expressed as;
aₙ = a₁ × r^(n-1)
where a1 is the first term, r is the common ratio, and n is the term number.
We are given that;
First term a₁ = 2Third term a₃ = 242.We can use these values to write two equations:
aₙ = a₁ × r^(n-1)
a₃ = a₁ × r^(3-1) = 2r² = 242
Solving for r, we get:
r² = 121
r = ±√121
r = ±11
However, we need to determine the sign of the common ratio.
Since the third term is larger than the first term, the common ratio must be positive. Therefore, r = 11.
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Martina spent a total of $15 at the grocery store. Of this amount, she spent $12 on fruit. What percentage of the total did she spend on fruit?
If Martina spent a total of $15 at the grocery store. Of this amount, she spent $12 on fruit then Martina spent 80% of the total on fruit.
To find the percentage of the total that Martina spent on fruit, we can use the following formula:
percentage = (part / whole) x 100%
where "part" is the amount spent on fruit and "whole" is the total amount spent.
In this case, Martina spent $12 on fruit and a total of $15, so:
percentage = (12 / 15) x 100% = 80%
Therefore, Martina spent 80% of the total on fruit.
The concept used in the solution is percentage, which is a way of expressing a proportion or a fraction as a number out of 100. In this case, we want to find the percentage of the total amount spent that was spent on fruit.
To calculate the percentage, we first need to find the part and the whole. The "part" refers to the amount of money spent on fruit, which is $12 in this case. The "whole" refers to the total amount of money spent, which is $15.
The formula used to find the percentage is:
percentage = (part / whole) x 100%
By plugging in the values we know, we get:
percentage = (12 / 15) x 100% = 0.8 x 100% = 80%
This means that Martina spent 80% of her total grocery bill on fruit.
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a culture of a certain bacteria is known to dpuble in number every 4 hr. if the culture has an initial count of 25, what will be the population of the culture at the end of the 24 hr?
The population of the culture at the end of 24 hours will be 1600.
To find this answer, we can use the formula for exponential growth:
P = P₀ * 2^(t/h)
Where P is the final population, P₀ is the initial population, t is the total time in hours, and h is the time it takes for the population to double.
Plugging in the given values, we get:
P = 25 * 2^(24/4)
Simplifying the exponent:
P = 25 * 2^6
Solving for P:
P = 25 * 64
P = 1600
So the population of the culture at the end of 24 hours will be 1600.
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Students were asked to prove the identity (sec x)(csc x) = cot x + tan x. Two students' work is given.
Part A: Did either student verify the identity properly? Explain why or why not. (10 points)
Part B: Name two identities that were used in Student A's verification and the steps they appear in. (5 points)
The expression is proved by the following steps.
What is Trigonometric Functions?Trigonometry uses six fundamental trigonometric operations. Trigonometric ratios describe these operations. The sine function, cosine function, secant function, co-secant function, tangent function, and co-tangent function are the six fundamental trigonometric functions.
The ratio of sides of a right-angled triangle is the basis for trigonometric functions and identities. Using trigonometric formulas, the sine, cosine, tangent, secant, and cotangent values are calculated for the perpendicular side, hypotenuse, and base of a right triangle.
Part A:
student A verified the identity properly Reason student A applied the trigonometric identities
Part B:
The identities used in student A verification are
step 1: sec x = 1/cosx
cosecx= 1 /sin x
(sec x)(csc x) = cot x + tan x
Hence this above equation is proved.
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Which graph can be used?
A graph that can be used to find the real solution(s) to 3 - 4x = -3 - x² - 4x is shown in the image attached below.
What is a quadratic function?In Mathematics, a quadratic function can be defined as a mathematical expression which defines and represent the relationship that exists between two (2) or more variable on a graph, with a maximum exponent of two.
Next, we would use an online graphing calculator to plot the given quadratic function 3 - 4x = -3 - x² - 4x as shown in the graph attached below.
By splitting the quadratic function, we have:
y = -3 - x² - 4x
y = 3 - 4x
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A sample is taken from the 15th and 50th items from 100
production lines. Which is this sampling method?
Answer options:
Systematic sampling
Cluster sampling
Convenient sampling
Stratified sampling
A sample is taken from the 15th and 50th items from 100 production lines. The sampling method used in this scenario is Systematic sampling.
Systematic sampling is a method in which a sample is taken at regular intervals from a larger population. In this case, the sample is taken from the 15th and 50th items from 100 production lines, meaning that the sample is taken at regular intervals from the larger population of 100 production lines.
This method is different from cluster sampling, which involves dividing the population into groups and then selecting a sample from each group. It is also different from convenient sampling, which involves selecting a sample based on convenience or accessibility.
Finally, it is different from stratified sampling, which involves dividing the population into strata and then selecting a sample from each stratum. Therefore, the correct answer is Systematic sampling.
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Which function is undefined when Theta = StartFraction pi Over 2 EndFraction radians?
cos Theta
cot Theta
csc Theta
tan Theta
Answer:
Option 4 [tex]tan[/tex]θ is undefined.
Step-by-step explanation:
Given : θ [tex]\\=\frac{\pi }{2}[/tex] radians
To find : Which function is undefined
Solution : Put θ [tex]\\=\frac{\pi }{2}[/tex] in all the given options to check which are undefined
[tex]Cos[/tex]θ [tex]=cos\frac{\pi }{2} =0[/tex]
[tex]Cot[/tex]θ [tex]=cot\frac{\pi }{2}=\frac{cos\frac{\pi }{2} }{sin\frac{\pi }{2} } =\frac{0}{1} =0[/tex]
[tex]Csc[/tex]θ [tex]=cosec\frac{\pi }{2} =\frac{1}{sin\frac{\pi }{2} } =\frac{1}{1}=1[/tex]
[tex]tan[/tex]θ [tex]=tan\frac{\pi }{2} =\frac{sin\frac{\pi }{2} }{cos\frac{\pi }{2} } =\frac{1}{0} =infinity[/tex]
Therefore, we get that [tex]tan[/tex]θ is not defined or undefined.
If the artist charges $280
for a painting that takes 7
hours to create, which equation represents the total amount, t
, the artist charges for a painting that takes h
hours to create?
Answer:
Step-by-step explanation:
idrk
Evaluate the following by the Change-of-Base Formula:
log13 (297)
- approximately 2.4728
- approximately 2.2198
- approximately 1.1139
- approximately 0.4505
The answer is approximately 2.2198, which is option (b).
How did we get the value?To evaluate log13(297) using the change-of-base formula, we can express it in terms of a logarithm with a base that we can easily calculate, such as the common logarithm (base 10) or the natural logarithm (base e).
Let's use the common logarithm:
log13(297) = log10(297) / log10(13)
We can use a calculator to find the decimal approximations of log10(297) and log10(13), and then divide them to get the final answer:
log13(297) ≈ 2.2198 (rounded to 4 decimal places)
Therefore, the answer is approximately 2.2198, which is option (b).
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Jason earns $232.50 per week as the manager at Big Bucks Department Store. He is single and claimed 1 allowance last year. How much more will be deducted from his weekly check if he claims no
allowances?
The difference in the amount of tax withheld based on his previous W-4 form and the new W-4 form is estimated to be $7 per week for federal income tax withholding, meaning $7 more will be deducted from his weekly check if he claims no allowances.
How to Calculate Claimed Allowances?The amount of tax withheld from Jason's paycheck depends on his taxable income, which is his gross income minus any deductions and exemptions. The number of allowances claimed on his W-4 form affects the amount of his paycheck that is subject to tax withholding.
If Jason claimed 1 allowance last year, his employer withheld tax as if he had $4,300 less in taxable income than if he had claimed no allowances. For 2023, the value of each allowance is $4,350.
Therefore, if Jason claims no allowances on his W-4 form, his taxable income will be $4,350 more than if he claimed 1 allowance.
Jason's gross income is $232.50 per week, which translates to $12,090 per year. If he claimed 1 allowance last year, his taxable income was $12,090 - $4,300 = $7,790. If he claims no allowances this year, his taxable income will be $7,790 + $4,350 = $12,140.
To determine how much more tax will be withheld from his weekly paycheck, we need to calculate the difference in the amount of tax withheld based on his previous W-4 form and the amount of tax withheld based on the new W-4 form.
Assuming that Jason is paid weekly, we can use the IRS tax withholding tables to estimate the federal income tax withheld for each situation.
Based on the 2023 IRS tax withholding tables, if Jason is single and claims 1 allowance, his employer would withhold $32 per week from his paycheck for federal income tax.
If he claims no allowances, his employer would withhold $39 per week from his paycheck for federal income tax.
Therefore, if Jason claims no allowances, $39 - $32 = $7 more will be deducted from his weekly check for federal income tax withholding.
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I need to solve and shade
Answer:
Step-by-step explanation:
2). y > - x - 2
y < - 5x + 2
3). y ≤ [tex]\frac{1}{2}[/tex] x + 2
y < - 2x - 3
Can someone please solve this?
3(2x+5)+2x=x+50
x=5
Hint: x+50
-x
Answer: x=5
Step-by-step explanation:
Is the algebraic expression a polynomial? If it is, write the polynomial in standard form. 3x^(2)+3x^(-3)-2
Yes, the algebraic expression [tex]3x^(2)+3x^(-3)-2[/tex] is a polynomial.
A polynomial is an algebraic expression consisting of variables and coefficients that involves only the operations of addition, subtraction, and multiplication, as well as non-negative integer exponents. The given algebraic expression satisfies these conditions, so it is a polynomial.
To write the polynomial in standard form, we need to rearrange the terms in descending order of exponents. In this case, the term with the highest exponent is [tex]3x^(2)[/tex], followed by the term with the lowest exponent, [tex]3x^(-3)[/tex], and finally the constant term, -2.
Therefore, the polynomial in standard form is:[tex]3x^(2)+3x^(-3)-2 = 3x^(2)-2+3x^(-3)[/tex] So, the polynomial in standard form is [tex]3x^(2)-2+3x^(-3)[/tex].
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Kingston weighed 9 pounds, 2 ounces at birth. His baby brother, Karmichael, weighed 7 pounds, 11 ounces a birth. How much bigger was Kingston's birth weight compared to Karmichael's?
Answer: 1lb 7oz
Step-by-step explanation:
All you have to do is subtract 9lbs and 2oz by 7lbs and 11oz, which is 1lb and 7oz
(16 oz in a pound)
Round all answers to 3 decimal places. The vertex of g is (-5,2)
The function g has a local _____ of ___ that occurs at u= ____
What is the domain of g in interval notation? What is the range of g in interval notation? The u-intercept(s) of g are ?
The g(u)-intercept is?
On what interval is g increasing? On what interval is g decreasinq?
The first derivative of a function equals zero on an interval, the function has a relative extremum on that interval.
Answer: The interval on which the function g(x) increases and decreases.The g function's vertex is at (-5, 2), and we need to figure out where the function increases and decreases. When a function has a vertex, it always opens up or down. As a result, the vertex serves as the function's minimum or maximum point.Given the above, we can assume that g(x) decreases to the left of x = -5 and increases to the right of x = -5. If we want to be more precise about the intervals, we can use the first derivative test. The first derivative of g(x) is as follows:g'(x) = 3x + 15The first derivative test states that if the first derivative of a function is greater than zero on an interval, the function is increasing on that interval. If the first derivative of a function is less than zero on an interval, the function is decreasing on that interval. Finally, if the first derivative of a function equals zero on an interval, the function has a relative extremum on that interval. We now need to find where g'(x) > 0 and where g'(x) < 0.3x + 15 > 0 => x > -5g(x) is increasing on the interval (-5, ∞)3x + 15 < 0 => x < -5g(x) is decreasing on the interval (-∞, -5)
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Complete the equation of the line whose yyy-intercept is (0,-1)(0,−1)left parenthesis, 0, comma, minus, 1, right parenthesis and slope is 444.what is y=
Answer:
The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
In this case, the y-intercept is (0, -1) and the slope is 4. So we have:
y = 4x - 1
Therefore, the equation of the line with y-intercept (0, -1) and slope 4 is y = 4x - 1.
(Answer Quick) Can you show the work as well?
Giving 30 points!