Answer:
[tex]f^{-1}(x)=\frac{ln(x)}{ln(3)}[/tex]
Step-by-step explanation:
Given: [tex]f(x)=3^x[/tex]
To find the inverse, let's first replace the [tex]f(x)[/tex] with [tex]y[/tex].
[tex]y=3^x[/tex]
Switch the [tex]x[/tex] and [tex]y[/tex].
[tex]x=3^y[/tex]
Solve for [tex]y[/tex].
[tex]y=\frac{ln(x)}{ln(3)}[/tex]
Write it in inverse notation.
[tex]f^{-1}(x)=\frac{ln(x)}{ln(3)}[/tex]
Answer: A) f^-1(x) = log₃x
The sale price of an item is 180 after 25 percent discount is applied what is the original price
Answer:the original price is 240
Step-by-step explanation:
In the figure, is tangent to the circle at point U. Use the figure to answer the question.
Describe the relationship among the lengths of the segments formed by the secant RT, and the tangent Suppose RT=16 in. and ST=4 in. Find the length of . Show your work.
Answer:
The length of TU is [tex]8\ in[/tex]
Step-by-step explanation:
we know that
The Intersecting Secant-Tangent Theorem states that, if a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment
so
in this problem
[tex]TU^{2}=RT*ST[/tex]
we have
[tex]RT=16\ in[/tex]
[tex]ST=4\ in[/tex]
[tex]TU^{2}=(16)(4)[/tex]
[tex]TU^{2}=64[/tex]
[tex]TU=8\ in[/tex]
Which two points are on the graph of y=x - 4?
(1, -3), (-1, -5)
(1, 5), (0, -4)
(0, -4), (4, 1)
(4, 0), (1, 3)
Replace x with the value in the answers and solve for Y to see which ones match.
y = 1-4 = -3
y = -1-4 = -5
(1,-3), (-1,-5) is the answer.
The length of a rectangle is three times it's width. If the perimeter of the rectangle is 64, find its length and width
set up an equation for the perimeter
l = length w = width
2l + 2w = 64
set up another equation as you know the length is 3 times the width
w = 3l
subsitute w = 3l into the 2l + 2w = 64
2l + 2(3l) = 64
solve for l
2l + 6l = 64
8l = 64
length = 8
subsitute into w = 3l
w = 3(8)
width = 24
Tell whether this set of numbers is a Pythagorean Triple. (6, 9, 12) Yes or no?
No it’s not a Pythagorean triple
what are the domain and range of the function?
y=2√3x+4-5
A. x ≥ -4/3; y ≥ -5
B. x ≥ 4/3; y ≥ - 5
C. x ≤ -4/3; y ≤ -5
D. x ≥ -4/3; y ≤ -5
√(3x+4)≥0 (otherwise it becomes imaginary)
3x+4≥0
3x≥-4
x≥-4/3
Y=2(0)-5 (it's the lowest x value, and that means it will limit y)
Y=-5
As x can be > -4/3, let's try for another Y value
Y=2√(3(5/3)+4)-5
Y=2√9-5
Y=6-5
Y=1
1>-5
So, Y≥-5
Answer is A
Team A has nine more points than team B. Team A has four times as many points as team B. Dose anyone know the answe?
Team A is the correct answer
Answer:
Team A has 12 points , Team B has 3
Step-by-step explanation:
Adam says that the expression 52 - 3y is equal to 20 when y = 2 explain why Adams awnswe is incorrect
Answer:
y=10.33333333333
Step-by-step explanation:
52-3y=20
52-20=3y
3y=32
y=10.3333
What is the value of X in the triangle below? if the answer is not an integer, leave it in simplest radical form
Answer:
[tex]x=\frac{13\sqrt{2} }{2}[/tex]
Step-by-step explanation:
We can use the sine ratio to find the value of [tex]x[/tex].
Recall the mnemonics SOH; which means sine is Opposite over Hypotenuse.
[tex]\sin(45\degree)=\frac{x}{13}[/tex]
This implies that;
[tex]x=13\sin(45\degree)[/tex]
[tex]x=\frac{13\sqrt{2} }{2}[/tex]
What is the equation of a circle whose center is begin ordered pair negative 4 comma 6 end ordered pair and whose radius is 9 cm? Question 1 options: open parentheses x minus 4 close parentheses squared plus open parentheses y minus 6 close parentheses squared equals 81 open parentheses x plus 4 close parentheses squared plus open parentheses y minus 6 close parentheses squared equals 3 open parentheses x plus 4 close parentheses squared plus open parentheses y minus 6 close parentheses squared equals 81 open parentheses x minus 4 close parentheses squared plus open parentheses y plus 6 close parentheses squared equals 3
Answer:
[tex](x+4)^2+(y-6)^2=81[/tex]
Step-by-step explanation:
We want to find equation of a circle with center (-4,6) and radius 9cm.
The equation of a circle with center (h,k) and radius [tex]r[/tex] units is given by;
[tex](x-h)^2+(y-k)^2=r^2[/tex]
We substitute the radius and the center to obtain;
[tex](x+4)^2+(y-6)^2=9^2[/tex]
The required equation is:
[tex](x+4)^2+(y-6)^2=81[/tex]
Simplify the expression. 5 + 10 – 2 • 3 9 39 29 19
Answer:
9
Step-by-step explanation:
Orders of operation tells us we have to multiply or divide first, whichever one comes first from left to right; then we add or subtract from left to right. It looks like we have a 2*3 which is 6. That changes our expression to
5 + 10 - 6,
which is 15 - 6 which is 9
If x = 14, which equation is true? A. 3(12 – x) = 6 B. 2x – 3 = 22 C. 2(x – 3) = 22 D. 3(20 – x) = 44
The answer is C.
3 (20-14)=44
(distribute the 3, then subtract)
THE ANSWER IS BECAUSE 2X14 IS 28 SO 28 - 6 IS 22
The angle of elevation from a soccer ball on the ground to the top of the goal is 38 degrees. If the goal is 8 feet tall, what is the distance from the ball to the goal?
Answer:
The distance is 10.24 feet ( to the nearest hundredth).
Step-by-step explanation:
Use trigonometry of a right angled triangle:
The angle = 38 degrees, opposite side = 8 ft, we require the adjacent side: We have opposite / adjacent side so we need the tangent.
tan 38 = 8 / a
a = 8 / tan 38
= 10.24 feet.
Which quadrilateral with side lengths shown will have a perimeter of 20 meters? 6 m, 5 m, 4 m, 6 m 7 m, 4 m, 4 m, 6 m 3 m, 7 m, 3 m, 7 m 6 m, 3 m, 5 m, 5 m NEXT
Answer:
3 m, 7 m, 3 m, 7 m
Step-by-step explanation:
The perimeter is the sum of the side lengths, so the perimeters of your quadrilaterals are ...
6 m + 5 m + 4 m + 6 m = 21 m . . . . ≠ 20 m
7 m + 4 m + 4 m + 6 m = 21 m . . . . ≠ 20 m
3 m + 7 m + 3 m + 7 m = 20 m . . . . . This is it!
6 m + 3 m + 5 m + 5 m = 19 m . . . . ≠ 20 m
The quadrilateral with side lengths of 3 m, 7 m, 3 m, and 7 m will have a perimeter of exactly 20 meters, as the sum of these side lengths is 20 meters.
To determine which quadrilateral with the given side lengths will have a perimeter of 20 meters, we need to add the lengths of all the sides for each option and see which one totals 20 meters.
For the first option (6 m, 5 m, 4 m, 6 m), the sum is 6 + 5 + 4 + 6 = 21 meters.
The second option (7 m, 4 m, 4 m, 6 m), the sum is 7 + 4 + 4 + 6 = 21 meters.
The third option (3 m, 7 m, 3 m, 7 m), the sum is 3 + 7 + 3 + 7 = 20 meters.
The fourth option (6 m, 3 m, 5 m, 5 m), the sum is 6 + 3 + 5 + 5 = 19 meters.
Therefore, the quadrilateral with sides measuring 3 m, 7 m, 3 m, and 7 m will have a perimeter of 20 meters.
Please Help!!!!!!!
Given that f(x) = 4x +1 and g(x) = x^2 -2,
which of the following is an expression for f(g(x))?
a. 16x^2 + 8x - 1
b. x^2 + 4x - 1
c. 5x^2 - 1
d. 4x^2 - 7
Answer:
d. [tex]4x^2-7[/tex]
Step-by-step explanation:
The given functions are
[tex]f(x)=4x+1[/tex] and [tex]g(x)=x^2-2[/tex]
We want to find the composition of the f and g.
[tex]f(g(x))=f(x^2-2)[/tex]
We substitute [tex]x^2-2[/tex] into [tex]f(x)=4x+1[/tex] to obtain;
[tex]f(g(x))=4(x^2-2)+1[/tex]
This simplifies to;
[tex]f(g(x))=4x^2-8+1[/tex]
[tex]f(g(x))=4x^2-7[/tex]
Hence the correct choice is d.
The price of a hat is $27.When it goes on sale, it wll be 1/3.How much would you save if you were to buy ti on sale
Answer:
You would save $18
Step-by-step explanation:
(27/3)*2 = $18
Ted is not particularly creative. he uses the pickup line "if i could rearrange the alphabet, i'd put u and i together." the random variable x is the number of women ted approaches before encountering one who reacts positively. determine whether a probability distribution is given. if a probability distribution is given, find its mean and standard deviation. if a probability distribution is not given, identify the requirements that are not satisfied.
The probability distribution is not given since the sum of the probabilities is not 1.
Given a table of values where x is the number of women ted approaches before encountering the one who reacts positively.
Each of the probabilities of the women reacting positively is also given.
All the value of the probabilities lies between 0 and 1.
Now, find the sum of the probabilities.
ΣP(x) = 0.001 + 0.008 + 0.034 + 0.057
= 0.1
Here, the sum of the probability should be 1, not 0.1, in order to be a probability distribution.
Hence the given distribution is not a probability distribution.
Learn more about Probability Distributions here :
https://brainly.com/question/29062095
#SPJ2
The table of distribution which is not in question is given below:
x P(x)
0 0.001
1 0.008
2 0.034
3 0.057
Use the limit theorem and the properties of limits to find the limit.
Answer:
The answer is √3/4 ⇒ answer (d)
Step-by-step explanation:
∵ [tex]\lim_{n \to \infty} \frac{\sqrt{3x^{2}+2} }{4x+1}[/tex]
* By using the limit theorem: divide up and down by x
∵ x = √x²
∴ [tex]\sqrt{\frac{3x^{2} }{x^{2}}+\frac{2}{x^{2}}[/tex] =
[tex]\sqrt{3+\frac{2}{x^{2}}[/tex] ⇒ numerator
∵ [tex]\frac{4x}{x}+\frac{1}{x}=4+\frac{1}{x}[/tex] ⇒ denominator
∵ x →∞ ⇒ ∴ 2/x² = 2/∞ = 0 and 1/x = 1/∞ = 0
∴ [tex]\lim_{x \to \infty}\frac{\sqrt{3+\frac{2}{x^{2}}}}{4+\frac{1}{x}}=\frac{\sqrt{3}}{4}[/tex]
∴ The answer is √3/4 ⇒ (d)
The answer is: [tex]d.\frac{\sqrt{3} }{4}[/tex]
Why?Since the degree of both numerator and denominator are the same, the result will be a number different of zero, so the first given option (a) it's incorrect.
We need to "break" the indeterminate form of the limit in order to find the correct answer.
To solve this limit, we must divide each term by the largest degree term, for this case is "x" since the numerator is inside of a square root.
So, doing it we can solve the limit:
[tex]\lim_{x \to \infty}\frac{\sqrt{\frac{3x^{2} }{x^{2} }+\frac{2}{x^{2}}}}{\frac{4x}{x}+\frac{1}{x}}\\\\ \lim_{x \to \infty} \frac{\sqrt{3+\frac{2}{x^{2}}}}{4+\frac{1}{x}}[/tex]
Then, before evaluating the limit, we must remember that any number divided by infinity will give as result zero (0), so:
[tex]\lim_{x \to \infty} \frac{\sqrt{3+\frac{2}{(infinity)^{2}}}}{4+\frac{1}{infinity}}\\\\\lim_{x \to \infty} \frac{\sqrt{3+0}}{4+0}=\frac{\sqrt{3} }{4}[/tex]
So, the correct option is: [tex]d.\frac{\sqrt{3} }{4}[/tex]
Have a nice day!
Tobias’s closet has 1 red hat and 1 black hat; 1 white shirt, 1 black shirt, and 1 black-and-white-striped shirt; and 1 pair of black pants and 1 pair of blue pants. He is picking an outfit by reaching into his closet and randomly choosing a hat, a shirt, and a pair of pants. How many possible outfit combinations are there?
Answer:
There are total 12 outfit combinations.
Step-by-step explanation:
Number of hat are: 2
1 red hat and 1 black hat
Number of shirt are: 3
1 white shirt , 1 black shirt , 1 black-and-white striped shirt.
Number of pants are: 2
1 black and 1 blue
Now, the total number of combinations could be seen with the help of a tree diagram.
We observe that total 12 combinations are possible.
The volume of a rectangular prism has a volume of 42 cubic units the length is 3 units the width is 2 units what is the height
Answer: the answer is 7
Step-by-step explanation: 42/3=14 14/2=7 hope this helps
The value of the height will be 7 units.
What is mean by Rectangle?
A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.
Given that;
The volume of a rectangular prism = 42 cubic units
And, The length is 3 units ,the width is 2 units.
Now,
Since, We know that;
⇒ Volume of rectangle = Length x Width x Height
Let height of a rectangular prism = x
Hence, we get;
⇒ Volume of rectangle = Length x Width x Height
⇒ Volume of rectangle = 3 × 2 × x
⇒ 42 = 6x
⇒ x = 42 / 6
⇒ x = 7 units
Thus, The value of the height will be 7 units.
Learn more about the rectangle visit:
https://brainly.com/question/25292087
#SPJ5
(30 Points) A buoy oscillates in simple harmonic motion according to the motion of waves at sea. An observer notes that the buoy moves a total of 6 feet from its lowest point to its highest point. The frequency of the buoy is ¼ (it completes ¼ of a cycle every second).
a. What is the amplitude of the function that models the buoy's motion?
b. What is the period of the function that models the buoy's motion?
c. Using cosine, write a possible equation to model the motion of the buoy
Explain your answers please
Answer: a) A = 3
b) P = 4
c) [tex]\bold{3\ cos\dfrac{\pi}{2}x}[/tex]
Step-by-step explanation:
[tex]Amplitude (A) = \dfrac{max-min}{2}\\\\\\.\qquad \qquad \qquad =\dfrac{6}{2}\\\\\\.\qquad \qquad \qquad =\boxed{3}[/tex]
Period (P) is the reciprocal of the frequency (f)
f = [tex]\frac{1}{4}[/tex] → P = [tex]\frac{4}{1}\quad =\boxed{4}[/tex]
y = A cos (Bx - C) + D
A = 3[tex]P=\dfrac{2\pi}{B}[/tex] → [tex]4=\dfrac{2\pi}{B}[/tex] → 4B = 2π → [tex]B=\dfrac{2\pi}{4}[/tex] → [tex]B=\dfrac{\pi}{2}[/tex]C = none givenD = none given[tex]\large{\boxed{y=3\ cos\dfrac{\pi}{2}x}}[/tex]
Answer:
c. [tex]\displaystyle y = 3cos\:\frac{\pi}{2}x[/tex]
b. [tex]\displaystyle 4[/tex]
a. [tex]\displaystyle 3[/tex]
Explanation:
[tex]\displaystyle \boxed{y = 3sin\:(\frac{\pi}{2}x + \frac{\pi}{2})} \\ y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 0 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{-1} \hookrightarrow \frac{-\frac{\pi}{2}}{\frac{\pi}{2}} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{4} \hookrightarrow \frac{2}{\frac{\pi}{2}}\pi \\ Amplitude \hookrightarrow 3[/tex]
OR
[tex]\displaystyle y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 0 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{4} \hookrightarrow \frac{2}{\frac{\pi}{2}}\pi \\ Amplitude \hookrightarrow 3[/tex]
Keep in mind that although you are told write a cosine equation, if you plan on writing your equation as a function of sine, then there WILL be a horisontal shift, meaning that a C-term will be involved. As you can see, the photograph on the right displays the trigonometric graph of [tex]\displaystyle y = 3sin\:\frac{\pi}{2}x,[/tex] in which you need to replase "cosine" with "sine", then figure out the appropriate C-term that will make the graph horisontally shift and map onto the cosine graph [photograph on the left], accourding to the horisontal shift formula above. Also keep in mind that the −C gives you the OPPOCITE TERMS OF WHAT THEY REALLY ARE, so you must be careful with your calculations. So, between the two photographs, we can tell that the sine graph [photograph on the right] is shifted [tex]\displaystyle 1\:unit[/tex]to the right, which means that in order to match the cosine graph [photograph on the left], we need to shift the graph BACKWARD [tex]\displaystyle 1\:unit,[/tex]which means the C-term will be negative, and by perfourming your calculations, you will arrive at [tex]\displaystyle \boxed{-1} = \frac{-\frac{\pi}{2}}{\frac{\pi}{2}}.[/tex]So, the sine graph of the cosine graph, accourding to the horisontal shift, is [tex]\displaystyle y = 3sin\:(\frac{\pi}{2}x + \frac{\pi}{2}).[/tex]Now, with all that being said, in this case, sinse you ONLY have a wourd problem to wourk with, you MUST use the above formula for how to calculate the period. Onse you figure this out, the rest should be simple. Now, the amplitude is obvious to figure out because it is the A-term, but of cource, if you want to be certain it is the amplitude, look at the graph to see how low and high each crest extends beyond the midline. The midline is the centre of your graph, also known as the vertical shift, which in this case the centre is at [tex]\displaystyle y = 0,[/tex]in which each crest is extended three units beyond the midline, hence, your amplitude. So, no matter how far the graph shifts vertically, the midline will ALWAYS follow.
b. To find the period [units of time], simply take the multiplicative inverce of the frequency, or use the formula below:
[tex]\displaystyle F^{-1} = T[/tex]
a. To find the amplitude, simply split the height in half.
I am delighted to assist you at any time.
Please help me out :)
180-124=56
56/2=28
Ans 28
A. c equals zero.
B. c is greater than zero.
C. It is not possible to tell whether c is greater than or less than zero.
D. c is less than zero.
I think it is D.
I think it's B, because the grah becomes greater and greater by every point. It starts from - infinite and it keeps going up to + infinite.
The graph tells us the following about the value of c in this function: D. c is less than zero.
What is a nth root function?In Mathematics and Euclidean Geometry, a radical function or nth root function can be represented by using the following mathematical equation:
[tex]f(x)=a(x+k)^{\frac{1}{n} }+c[/tex]
where:
n represents the value of the exponent.k represent the vertical shift.By critically observing the graph shown above, we can logically deduce that the graph represents a nth root function and the value of c does not equal zero because it isn't symmetrical about the x-axis.
Since the parent nth root function was vertically shifted down and horizontally to the left, it implies that the value of c must be negative and less than zero.
Read more on function here: brainly.com/question/27949820
#SPJ3
Leslie needs 48 ounces of charcoal for her grill.How many pounds of charcoal should she buy?
Leslie needs to divide 48 ounces by the conversion factor of 16 ounces per pound to find out she needs 3 pounds of charcoal for her grill.
Leslie is seeking to understand how much charcoal she should purchase in pounds if she needs 48 ounces for her grill. Since the question involves converting ounces to pounds, we can use the conversion factor that 1 pound is equal to 16 ounces. To find out how many pounds are in 48 ounces, we divide 48 by 16.
48 ounces divided by 16 ounces per pound equals 3. Therefore, Leslie will need to buy 3 pounds of charcoal for her grill.
You choose at random from letters a,b,c, and d, and you roll a number cube once. What are your chances you get a and 5
Answer:
your answer is 10! please mark brainliest :))))))
Step-by-step explanation:
Use the laws of logarithms and the values given below to evaluate the logarithmic expression (picture provided)
Answer: Option a.
Step-by-step explanation:
To solve the given exercise, you must keep on mind the law of logarithms shown below:
[tex]log(a)-log(b)=log(\frac{a}{b})[/tex]
Therefore, by applying the law , you can rewrite the expression given, as following:
[tex]log(\frac{5}{7})=log(5)-log(7)[/tex]
You know that:
[tex]log5=0.6990\\log7=0.8451[/tex]
Then, when you substitute values, you obtain:
[tex]0.6990-0.8451=-0.1461[/tex]
Use the quotient rule [ [tex]\text{log}_a\frac{x}{y} = \text{log}_ax-\text{log}_ay[/tex] ] to simplify.
[tex]\text{log}\frac{5}{7} = \text{log}(5)-\text{log}(7)[/tex]
Simplify using the given values.
0.6990 - 0.8451
-0.1461
Therefore, [tex]\text{log}\frac{5}{7}=-0.1461[/tex]
Best of Luck!
B is the midpoint of AC if AB equals X +5 and BC equals 2X -11 find the measure of AB
Answer:
AB = 21
Step-by-step explanation:
The midpoint divides the segment into two congruent parts, so you have ...
AB = BC
x +5 = 2x -11 . . . substitute the given expressions for AB and BC
16 = x . . . . . . . . add 11-x
Then the measure of AB is ...
AB = x +5 = 16 +5 = 21
Solve by using the quadratic formula.
Answer:
i think c or a
Step-by-step explanation:
Answer:
b.x = -4/3+4/3i , -4/3-4/3i
Step-by-step explanation:
We have given a quadratic equation.
9x²+24x+32 = 0
We have to find the solution of given equation by using the quadratic formula.
From given equation,
a = 9,b = 24 and c = 32
x = (-b±√b²-4ac) / 2a is quadratic formula to solve equation.
Putting values in above formula, we have
x = (-24±√(24)²-4(9)(32) ) / 2(9)
x = (-24±√576-1152) / 18
x = (-24±√-576) / 18
x = -24 ± 24i / 18
x = 6(-4±4i) / 18
x = -4±4i / 3
x = -4/3+4/3i , -4/3-4/3i which is the solution.
A store has 20% off sale. A pair a shoes is regularly priced $80.00. What is the sale cost?
10% is $8.00 so 20% is $16 and 80-16= 64 so the sale cost is $64.00
The school fun fair made $ 1,768 on games and $978 on food sales. How much money did the fun fair make on games and food sales