Answers
f^-1(x) = /x - 4 - /x - 4
(check attached image)
Related Questions
The hanger image below represents a balanced equation.
36
a
a
Find the value of a that makes the equation true.
Answers
Answer:
18
Step-by-step explanation:
36 divided by two is 18 therefore 18+18 is 36
Phu takes out a $2,400 discounted loan using a simple interest rate of 8% for a period of 18 months. What is the effective interest rate, re
Answers
Answer:
9.1
Step-by-step explanation:
To calculate the total interest payable, we use the formula
I=P0rt,
and substituting our values yields
I=$2,400×0.08×1812=$288.
Therefore the total amount he receives at loan drawdown is $2,400−$288=$2,112. To calculate the effective interest rate, we use to formula
A=P0(1+ret).
In this instance we have A=$2,400,P0=$2,112 (redefined from the value above) and t=1.5. We substitute into the formula to get
$2,400=$2,112(1+1.5re).
Solve for re.
24002112=1+1.5re
24002112−1=1.5re
24002112−11.5=re
This gives re=0.0909⋯=9.0909…%, which is 9.1%
Answer these questions for me please i dont have time to go back and figure this out rn
Answers
Answer:
Step-by-step explanation:
in 6 years we know that it will be half, because that's what "half life" means
in 3 years it's only loses 1/2 * 1/2 = 1/4 of it's mass
in 1 year it's only loses 1/6 * 1/2 = 1/12 of it's mass
from that we can make the formula that
current weight of radium = Wr
Mass of radium orginal = Mo
year of time = t ( must be in years, not days, months or weeks )
Wr = (1/12)*t* Mo
I need help with 3 and 4
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Answer:
[tex]\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}[/tex]
( 3 )
the given figure resembles a rectangle !
now ,
[tex]Area \: of \: rectangle = length \times breadth \\ \\ given \: - \: length = 12 \: ft \\ \therefore \:breadth = x \: ft \\ \\ Area = 108 \: ft {}^{2} \\ \\ \implies \: length \times breadth = 108 \: ft {}^{2} \\ \\ \implies \: x \times 12 = 108 \\ \\ \implies \: x = \cancel\frac{108}{12} \\ \\ \bold\red{\implies \: x = 9 \: ft}[/tex]
_____________________________
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( 4 )
the given figure resembles a parallelogram!
[tex]Area \: of \: parallelogram = height \times base \\ \\ \implies \: height = x \: cm\\ \\ \implies \: base = 16 \: cm \\ \\ \: Area \: = 96 \: cm {}^{2} \\ \\ \implies \: x \times 16 = 96 \\ \\ \implies \: x = \cancel\frac{96}{16} \\ \\ \bold\red{\implies \: x = 6 \: cm}[/tex]
hope helpful :D
[tex]\huge \underbrace \mathfrak \red{Answer}[/tex]
To find :-
To get the value of 'di in figure 3 and 4.
Figure 3
According to the figure, we know that it is a quadrilateral. It's all sides are at 90°.So we can assume that it can be rectangle. In the figure, length of one side is given and area of figure is given and we have the length of another side.Solution :-
Area of rectangle = length × width
area = 108 ft², length = 12 ft, width = x
[tex]108 = 12 \times x \\ \frac{108}{12} = x \\ 9 = x[/tex]
Therefore, the value of x in this figure is 9 ft.[tex] \\ [/tex]
Figure 4
According to figure, we finds out that it is quadrilateral as it has 4 sides. It has all parallel sides. We can assume that it is parallelogram as the sides which are facing each other are parallels. And here value of one side is given which is base and area is given, we have to find here is height.Solution :-
Area of parallelogram = base × height
Area = 96 cm², base = 16 cm, height = x
[tex]96 = 16 \times x \\ \frac{96}{16} = x \\ 6 = x[/tex]
Therefore, the value of x is 6 cm.A bag contains 5 green and 3 white balls (the balls are identical in all respect except colour). A ball is drawn at random from the bag without looking into the bag. What is the probability of getting a green ball? Is it more or less than getting a white ball?
Answers
Answer:
Probability of getting a green ball is more than that of getting a white ball.
Step-by-step explanation:
There are in all (5+3= 8) outcomes of the experiment. There are 5 outcomes in favour of the event of getting a green ball as there are 5 identical green balls in the bag.
Therefore, P(a green ball) = 5/8
In the same way,P(a white ball) = 3/8
5/8 > 3/8Thus, clearly the probability of getting a green ball is more than that of getting a white ball.
A person who does not swing from one emotion or another is said to be______.
A. an introvert
B. stable
C. unstable
D. an extrovert
Answers
Answer:
Stable. They're solid in they're emotions
Step-by-step explanation:
A pair of shoes is $50, plus 10% tax. What is the total amount you will pay?
Answers
Answer:
$55
Step-by-step explanation:
Given:
A pair of shoes is $50, plus 10% tax.
To Find:
What is the total amount you will pay?
Solve:
Tax = Increase - Add on
Thus,
$50 × 10% = 5
$50 + 5 = $55
Hence, the total amount you will pay is $55.
Kavinsky
For the function defined by y = StartFraction 1 Over x squared EndFraction, if x is doubled, what is the effect on y?
a.
y is quartered
c.
y stays the same
b.
y is doubled
d.
y is tripled
Please select the best answer from the choices provided
Answers
Answer:
a. y is quartered.
Step-by-step explanation:
y=1/x^2
when x is doubled, the equation becomes:
y=1/(2x)^2=1/(4x^2)
Answer:
If we double x, then the new value of x becomes 2x. So we can find the effect on y by substituting 2x for x in the given function.
y = 1/x^2
When x is replaced by 2x, we get:
y' = 1/(2x)^2
= 1/4x^2
Therefore, y' = (1/4)y
So, if x is doubled, then y is quartered (option a is the correct answer)
which expression is equivalent (7x3)2(x8)1/2
Answers
Answer:
B. 49x^10
Step-by-step explanation:
(7x^3)^2 * (x^8)^1/2
multiply the exponents
49x^6 * x^4
add the exponents
49x^10
NO LINKS!!!! Exponential Growth and Decay Part 3
Answers
Answer:
6. 14.9 years
7. 4.8 years
8. 28.91 years
Step-by-step explanation:
Exponential growth or decay is described by the function ...
y = a·b^t
where 'a' is the initial value, and 'b' is the growth (or decay) factor. The growth (or decay) factor is one added to the growth rate.
__
This equation can be solved for t to get ...
y/a = b^t . . . . . . . divide by a
log(y/a) = t·log(b) . . . . take logarithms
t = log(y/a)/log(b) . . . . divide by the coefficient of t
Note that the time period is in the same units as the growth rate. (If the growth rate is per quarter, then the value of t will be in quarters.)
__
6.The initial value is a=8000; the final value is y=35000; and the growth rate is 10%/4 = 0.025 per quarter. The above equation will give the time period in quarters.
t = log(35000/8000)/log(1+0.025) ≈ 59.77 . . . quarters
Anisha will have $35,000 after 59.77/4 = 14.9 years.
__
7.No loan payment period is given, so we assume that the $43000 represents the repayment of the entire loan. The growth rate is 6% per year. The time required for the loaned amount to accumulate to a value of $43,000 is ...
t = log(43,000/32,500)/log(1 +0.06) ≈ 4.80 . . . years
If the loan period is 4.80 years, Kevin will have paid 43,000 to pay it off.
__
8.The growth rate is 0.024/12 = 0.002 per month. The number of months to achieve the desired balance is ...
t = log(3200/1600)/log(1 +0.024/12) ≈ 346.92 . . . . months
The balance in the account will be $3200 after 346.92/12 = 28.91 years.
_____
Additional comment
As a crude check on the answers, the "rule of 72" can be used. It says the doubling time is approximately 72 divided by the growth rate in percent. That is, a 10% growth rate will cause the value to double in approximately 72/10 = 7.2 years.
In the first problem, the value grows from 8000 to 35000, which represents a little more than 2 doublings (8000 to 16000 and 16000 to 32000). So, it is reasonable to expect the time period to be near 2 times 7.2 years, or 14.4 years. The value of 14.9 years is not unreasonable.
Answer:
Compound interest formula
[tex]\Large \text{$ \sf A=P(1+\frac{r}{n})^{nt} $}[/tex]
where:
A = final amountP = principal amountr = interest rate (in decimal form)n = number of times interest applied per time periodt = number of time periods elapsedQuestion 6Given:
A = $35,000P = $8,000r = 10% = 0.1n = 4t = time (in years)[tex]\begin{aligned}8000\left(1+\frac{0.1}{4}\right)^{4t} & = 35000\\(1.025)^{4t} & = \frac{35000}{8000}\\(1.025)^{4t} & = 4.375}\\\ln (1.025)^{4t} & = \ln 4.375\\4t \ln 1.025 & = \ln 4.375\\4t & = \frac{\ln 4.375}{\ln 1.025}\\t & = 0.25\left(\frac{\ln 4.375}{\ln 1.025}\right)\\t & = 14.9427947\end{aligned}[/tex]
Therefore, she will have $35,000 in 15 years.
Question 7Given:
A = $43,000P = $32,500r = 6% = 0.06n = 1t = time (in years)[tex]\begin{aligned}32500\left(1+\frac{0.06}{1}\right)^{1t} & = 43000\\32500(1.06)^{t} & = 43000\\(1.06)^{t} & = \frac{43000}{32500}\\(1.06)^{t} & = \frac{86}{65}\\\ln (1.06)^{t} & = \ln \left(\frac{86}{65}\right)\\t \ln 1.06 & = \ln \left(\frac{86}{65}\right)\\t & = \dfrac{\ln \left(\frac{86}{65}\right)}{\ln 1.06}\\t & = 4.804621116\end{aligned}[/tex]
Therefore, Kevin will have paid $43,000 on the loan in 4 years and 10 months.
Question 8Given:
A = $3,200P = $1,600r = 2.4% = 0.024n = 12t = time (in years)[tex]\begin{aligned}1600\left(1+\frac{0.024}{12}\right)^{12t} & = 3200\\1600(1.002)^{12t} & = 3200\\(1.002)^{12t} & = \frac{3200}{1600}\\(1.002)^{12t} & = 2\\\ln (1.002)^{12t} & = \ln 2\\12t \ln (1.002) & = \ln 2\\12t & = \dfrac{\ln 2}{\ln 1.002}\\t & = \frac{1}{12}\left(\dfrac{\ln 2}{\ln 1.002}\right)\\t & = 28.91000404\end{aligned}[/tex]
The balance of the account will be $3,200 in 28 years and 11 months.
A ----------------- transforms some electrical energy into other forms of energy.
Answers
Answer:
A solar panel is the best way to transform electrical energy into other forms of energy
If v₁ = (3,7) and V₂ = (-2,4), then v₁v₂ is equal to which of the following?
A. (-6,28)
B. 34
C. 22
D. (-21,-8)
Answers
Hope this helps
Find the exact value of Tan(-420)
Answers
Decimal: -1.73205080
Exact Form: −√3
Find the value of y for the given value of x. Round to the nearest hundredth.
y = 0.05 − 10 ln x; x = 0.09
Answers
Answer:
[tex]y\approx24.129[/tex]
Step-by-step explanation:
[tex]y=0.05-10\ln x;\: x=0.09\\y=0.05-10\ln(0.09)\\y\approx24.129[/tex]
Answer:
24.129
the answer is that and I need 20 characters
Select the correct expression.
Select the expression that is equivalent to the expression below.
Answers
Answer:
[tex]8\sqrt[3]{-8x^3y^6z^{13}}[/tex]
Step-by-step explanation:
[tex]8\sqrt[3]{-8x^3y^6z^{13}}\\\\=8\sqrt[3]{(-1)^3\cdot2^3\cdot x^3 \cdot y^6 \cdot z^{12} \cdot z}\\\\=8\left[(-1)^3\cdot2^3\cdot x^3 \cdot y^6 \cdot z^{12} \cdot z \right]^{\tfrac 13}\\\\=-8\cdot 2 \cdot x \cdot y^2 \cdot z^4 \cdot z^{\tfrac 13}\\\\=-16xy^2 z^4 \sqrt[3]z[/tex]
Alyssa has a points card for a movie theater. She receives 70 rewards points just for signing up. She earns 12.5 points for each visit to the movie theater. She needs 245 points for a free movie ticket. How many visits must Alyssa make to earn a free movie ticket?
Answers
let x be the amount of times she visited the movie theater
[tex]70+12.5x=245\\\\12.5x=175\\\\x=14[/tex]
Alyssa needs to make 14 visits to earn a free movie ticket.
This is our y intercept
Rate of pay=12.5This is our slope.
So our equation is
p=12.5v+70Here v is visits
245=12.5v+7012.5v=175v=14visitsIf you dont know the answer or get it wrong i will report
Answers
Step-by-step explanation:
law of sine :
a/sin(A) = b/sin(B) = c/sin(C)
extended Pythagoras :
c² = a² + b² - 2×a×b×cos(C)
and : the sum of all angles in a triangle is always 180°.
1.
b² = 42.1² + 37² - 2×42.1×37×cos(13) =
= 105.8575002...
b = 10.28870741...
b/sin(13) = 37/sin(C)
sin(C) = 37 × sin(13)/b = 0.808963525...
C = 53.99478824...° ≈ 54°
A = 180 - 13 - 54 ≈ 113°
2.
c² = 18² + 13² - 2×18×13×cos(115) = 690.7853465...
c = 26.28279564...
c/sin(115) = 18/sin(A)
sin(A) = 18 × sin(115)/c = 0.62069273...
A = 38.36673893...°
B = 180 - 115 - A = 26.63326107...°
3.
the length of b is missing.
this cannot be solved without the missing information
Find the positive solution for c:
8 2 + 15 2 = c 2
Answers
Answer:
15
Step-by-step explanation:
8² + 15² = c²
To find : Value of c
8² = 8 x 8 = 64
15² = 15 x 15 = 225
c² = 225
225 = 15 x 15 = 15²
So,
c² = 15²
c = 15
Find the perimeter of a triangle that has the side lengths given below.
6 cm, 7√3 cm, √27cm
Give the answer as a radical expression in simplest form.
Answers
The perimeter of a triangle that has the side lengths is 6 + 10√3 cm
How to determine the perimeter?The side lengths are given as:
6 cm, 7√3 cm and √27 cm
The perimeter is the sum of the side lengths.
So, we have:
P = 6 + 7√3 + √27
Express 27 as 9 * 3
P = 6 + 7√3 + √(9 * 3)
Take the square root of 9
P = 6 + 7√3 + 3√3
Evaluate the sum
P = 6 + 10√3
Hence, the perimeter of a triangle that has the side lengths is 6 + 10√3 cm
Read more about perimeter at:
https://brainly.com/question/24571594
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how many solutions does the following equation have? 3x+6 =3(x+2)
Answers
Answer:
Infinite solutions
Step-by-step explanation:
3x+6 = 3(x+2)
3x+6 = 3x+6
6 = 6
HELP ME ON THIS PLSS Kathy swims at least 6 laps everyday. Write an inequality to show how long Kathy swims each day.
Answers
Answer:
x ≥ 6.
Step-by-step explanation:
Given : Kathy swims at least 6 laps every day.
To find: Write an inequality to show how long Kathy swims each day.
Solution : We have given that Kathy swims at least 6 laps every day.
We can see from given statement Kathy can swim 6 laps or greater then 6 laps in a day.
Then we use greater than or equal to sign ( for at least)
Since x ≥ 6.
Therefore, x ≥ 6.
Hey guys may yall help please and thank you !!
Answers
Answer: 12? im pretty sure
Step-by-step explanation: 1/4 of a unit so 4 for 1 unit, 4 x 3 is 12 units for 3
a box in a shape of a rectangle prism has a length of 3 5/8 inches a width of 2 1/2 inches and a height of 4 inches. what is the volume of the box
Answers
Answer:
volume is 36.25inches
145/4
Step-by-step explanation:
L= 3 5/8inches
W= 2 1/2inches
H= 4inches
VOLUME = L×W×H
3 5/8 × 2 1/2 × 4 =
29/8 × 5/2 × 4 = 36.25inches
36.25→145/4
find the area of following quadeilaterals
???????
Answers
write 1.86×10⁵ as an ordinary numbe
Answers
[tex]\boxed{\sf 186,000}\boxed[/tex]
Answer:
186,000
Step-by-step explanation:
1. Multiply 10 to the 5th power:
[tex]10^{5}[/tex] = 100,000
2. Multiply:
1.86 × 100,000 = 186,000
hope this helps :)
Twelve subtracted from twelve times a number is -84. What is the number? A) Translate the statement above into an equation that you can solve to answer this question. Do not solve it yet. Use x as your variable. The equation is B) Solve your equation in part [A] for x. Answer: 0 =
Answers
Answer:
x=-6
Step-by-step explanation:
Let x be the number
A) 12x-12=-84
B) 12x=-72
x=-6
Help help help help help help
Answers
Explanation:
7. f(x) = x^4 + 3x^3 - 6x^2 - 10x + 8
f(2) = 2^4 + 2^3 - 6^2 - 10(2) + 8
f(2) = 16 + 8 - 12 - 20 + 8
f(2) = 0
8. x^2 - 9 = (x - 3)(x + 3)
x ^2 + x - 6 = (x + 3)(x -2)
Thus, the common factor is x + 3
tony wants to buy a new radio for his car. It cost $350. He wants to purchase it in four months. How much will he have to save each month?
Answers
what is the equation of the line that passes through the point (3,6) and has a slope of -1/3
ASAP PLS
Answers
[tex]\Large\texttt{Answer\::}[/tex]
Please consult the "Calculations" section of this ans .
[tex]\Large\texttt{Calculations\::}[/tex]
The information we're given is below :
slope : -1/3Point crossed by the line : (3, 6)As per given information , we can do the following :
Write the line's equation in point slope formPoint - slope form looks like so :
y-y₁=m(x-x₁)
y-6=-1/3(x-3)
y-6=-1/3x+1
y=-1/3x+1+7
y=-1/3x+6
↑ [tex]\small\textsc{EQUATION OF THE LINE}[/tex]
[tex]\small\textit{hope\:helpful~}[/tex]
Zahra gave out a survey to some students in her school about their favorite color. Students could choose between purple and red. 187 of those surveyed said their favorite color was purple. 45% of the students surveyed said their favorite color was red. How many students were surveyed in total?
Answers
Answer:
340 people did the survey in total.
What is Algebra?
Algebra is a branch of mathematics that deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they do not have predefined values.
These symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations in order to determine their values.
Given:
People who like the color purple = 187
Moreover, 45% of people prefer the color red.
Purple color enthusiasts = 100 - 45 = 55%
Let the total number of people polled be x.
So, 55% of x = 187
55/100x = 187
x= 18700/ 55
x= 340
Therefore, the answer is 340.
Learn more about Algebra here:
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