It won’t let me upload the answer, so I’ll message it to you.
Write the expression as a single power of b.
open parentheses b to the power of begin display style 3 over 4 end style end exponent over b to the power of begin display style 1 fourth end style end exponent close parentheses to the power of 1 half end exponent
The simplified form of the given expression is x raise to the power of one-thirty.
What is an expression?An expression is any mathematical statement which consists of numbers, variables and an arithmetic operation between them. In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
here, we have,
Simplifying indices expressions
Given the indices expression (x^1/2/(x^1/3)^1/5
Using the indices law below:
a^m/a^n = a^m-n
(a^m)^n
Applying the law above to the given equation
(x^1/2/(x^1/3)^1/5 = (x^1/2-1/3)^1/5
(x^1/2/(x^1/3)^1/5 = (x^1/6)^1/5
(x^1/2/(x^1/3)^1/5 = x^1/30
Hence the simplified form of the given expression is x raise to the power of one-thirty.
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A Philadelphia taxi driver gets new customers at rate 1/5 per minute. With probability 1/3 the person wants to go to the airport, a 20 minute trip. After waiting in a line of cabs at the airport for an average of 35 minutes, he gets another fare and spends 20 minutes driving back to drop that person off. Each trip to or from the airport costs the customer a standard $28 charge (ignore tipping). While in the city fares with probability 2/3 want a short trip that lasts an amount of time uniformly distributed on [2, 10] minutes and the cab driver earns an average of $1.33 a minute (i.e., 4/3 of a dollar). (a) In the long run how much money does he make per hour? (b) What fraction of time does he spend going to and from the airport (inducing the time spent in line there)?
a) In the long run, he makes 53.2 $ per hour
b) He spends 46% of the time in a day driving to and from the airport
a)
The amount of the expected money he will earn in airport trips per minute will be = (Probability that he gets an airport drop) * ((Total Earnings)/(Total time taken in minutes))
So, the value of the amount of expected money he will earn in airport trips per minute will be
\(= (\frac{1}{3}) \times (\frac{(28 \times 2)}{(20+20+35)})\\=\frac{56}{225}=0.249\)
Then, the Expected money he earns in airport trips per hour will be =0.249*60=$14.93
The expected money he earns within city trips per minute will be
=(Probability that he gets a within-city fare) * (Avg. money he earns in within-city fares)
So, the value of the amount of the expected money he earns within city trips per minute will be= (2/3) * 1.33 = 0.886
Expected money he earns within city trips per hour = 0.886*60 = 53.2$
b)
Fraction of time spent going to and from the airport (excluding the time spent in line there)
=((Probability of airport trip) * (Time taken to and fro airport))/
((Probability of airport trip) * (Avg. time taken in airport trips))+((Probability of city trip) *(Avg. time taken in city trips))
= (1/3)*(20+20)/(((1/3)*(20+35+20))+((2/3)*((2+10)/2))))
=40/(12+20+35+20)
=40/87
=0.46
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Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the
correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag
the item to the trashcan. Click the trashcan to clear all your answers,
Express in exponential form.
logo0.001 =3
In order to write log10(0.001) = -3 in index form, we have \(10^{-3} = 0.001\).
Exponential form of logarithmThe logarithm of a number refers to the power to which a given base is raised to give the number. In this case, the base is 10 and the index is 3. Our task is to write log10(0.001) = -3 in index form.
Recall that;
\(a^{x}\) = PHence, to write log10(0.001) = -3 in index form we have to write, \(10^{-3} = 0.001\)
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please help me this is. big
Answer:
C. = 69.5
Step-by-step explanation:
The median or the average between 80 and 59 is 69.5
Hope this helps! :)
1) Convert 2-7i to trigonometric form
2) Use the n-th roots theorem to find the requested roots of the given complex number.
Find the cube roots of 125
Answer:
1) \(\sqrt{53}(\cos286^\circ+i\sin286^\circ)\)
2) \(\displaystyle 5,-\frac{5}{2}+\frac{5\sqrt{3}}{2}i,-\frac{5}{2}-\frac{5\sqrt{3}}{2}i\)
Step-by-step explanation:
Problem 1
\(z=2-7i\\\\r=\sqrt{a^2+b^2}=\sqrt{2^2+(-7)^2}=\sqrt{4+49}=\sqrt{53}\\\\\theta=\tan^{-1}(\frac{y}{x})=\tan^{-1}(\frac{-7}{2})\approx-74^\circ=360^\circ-74^\circ=286^\circ\\\\z=r\,(\cos\theta+i\sin\theta)=\sqrt{53}(\cos286^\circ+i\sin 286^\circ)\)
Problem 2
\(\displaystyle z^\frac{1}{n}=r^\frac{1}{n}\biggr[\text{cis}\biggr(\frac{\theta+2k\pi}{n}\biggr)\biggr]\,\,\,\,\,\,\,k=0,1,2,3,\,...\,,n-1\\\\z^\frac{1}{3}=125^\frac{1}{3}\biggr[\text{cis}\biggr(\frac{0+2(2)\pi}{3}\biggr)\biggr]=5\,\text{cis}\biggr(\frac{4\pi}{3}\biggr)=5\biggr(-\frac{1}{2}-\frac{\sqrt{3}}{2}i\biggr)=-\frac{5}{2}-\frac{5\sqrt{3}}{2}i\)
\(\displaystyle z^\frac{1}{3}=125^\frac{1}{3}\biggr[\text{cis}\biggr(\frac{0+2(1)\pi}{3}\biggr)\biggr]=5\,\text{cis}\biggr(\frac{2\pi}{3}\biggr)=5\biggr(-\frac{1}{2}+\frac{\sqrt{3}}{2}i\biggr)=-\frac{5}{2}+\frac{5\sqrt{3}}{2}i\)
\(\displaystyle z^\frac{1}{3}=125^\frac{1}{3}\biggr[\text{cis}\biggr(\frac{0+2(0)\pi}{3}\biggr)\biggr]=5\,\text{cis}(0)=5(1+0i)=5\)
Note that \(\text{cis}\,\theta=\cos\theta+i\sin\theta\) and \(125=125(\cos0^\circ+i\sin0^\circ)\)
What is 2x2 + 1000 x 1000
Answer: 2x2 + 1000 x 1000 = 1000004
Step-by-step explanation: you add on 5 0's to the one and 2x2 = 4 so add on the 4 also
Answer:
1000004
Step-by-step explanation:
First we do can separate it into the parentheses: (2*2) + (1000*1000)
= 4 + 1000000
= 1000004
use left to right elimination to solve the system of equations
x-3y+4z=-8
y-3z=11
y+5z= -37
select the correct choice below and fill in any answer boxes within your choice
A. the one solution is x=
Answer:
x=11
y=-7
z=-6
Step-by-step explanation:
y=11+3z
x-33-5z=8
11+8z=-37
z=-6
x-3=8
y=-7
x=11
SOMEONE PLSSS HELP MEE AND PLEASE DONT JUST TYPE FOR FUN ALSO ILL GIVE BRAINLESS TO WHOEVERS RIGHT
Solve. −3 2/3=x−1 1/4 What is the solution to the equation? Enter your answer as a simplified mixed number in the box.
Question
Solve.
x−(−2 7/8)=−1/2
What is the solution to the equation?
Enter your answer as a simplified mixed number in the box.
Question
Solve.
−2 1/3x=−1 3/4
What is the solution to the equation?
Enter your answer as a simplified fraction in the box.
Answer:x-(2 7/8)=1/2
Step-by-step explanation:
Translate the following phrase into
an algebraic expression:
"37 less than the quotient of a number
and 5 results in a number added to 32"
solve the equation
-2x +8 = -10
x/-5 + -15 = -22
please help me with this asap
Determine whether each statement is always true, sometimes true, or
never true.
1. Every square is a rhombus.
2. Every rhombus is a parallelogram.
3. Every rectangle is a parallelogram.
4. The diagonals of a square are perpendicular.
5. If the diagonals of a quadrilateral bisect each other, then the
quadrilateral is a square.
6. If the diagonals of a quadrilateral are perpendicular, then the
quadrilateral is a rhombus.
7. The diagonals of a rectangle are congruent.
8. The diagonals of a rhombus bisect the vertex angles.
9. Some rectangles are rhombi.
10. Some rhombi are squares.
Here the statements 1, 2, 3, 4, 5, 7, 8, 10 are correct according to the rules of the shapes.
1: A rhombus is a quadrilateral with four equally sized sides. Each square is a rhombus since they all have four sides that are the same length. 2: Due to the parallel alignment of its opposing sides, every rhombus is a parallelogram. 3: It is true that all rectangles are parallelograms since they have two sets of parallel sides and two pairs of equal opposing sides. 4: The other is split into two equal halves by each bisector. 5: If a quadrilateral's diagonals are equal and bisect one another at right angles, it is a square. 7: Since the diagonals themselves are congruent, each bisected line segment is also congruent. 8: The diagonals split a rhombus's vertex angles into equal halves. The diagonals of a rhombus are at right angles to one another. 10: A square is a rhombus. Sometimes, this is accurate. When a rhombus has four right angles, it is true. So the statements 1,2,3,4,5,7,8,10 are correct.
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Find the difference.
4-(-8)=
Answer:
4
Step-by-step explanation:
subtract negative 4 by negative 8
Help with math problems
The inverse of the function will be f⁻¹(y) = y + 1.
What is the inverse of the function?A function that can reverse into another function is known as an inverse function or anti-function. In other words, the inverse of a function "f" will take y to x if any function "f" takes x to y.
The given function is y = x - 1.
To find the inverse of this function, we need to solve for x in terms of y.
y = x - 1
Adding 1 to both sides, we get:
y + 1 = x
Therefore, the inverse function is:
x = y + 1
f⁻¹(y) = y + 1
Note that the inverse function represents the reflection of the original function across the line y = x.
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Help plz on number 2
Answer:
X could be equal to both -7 and 7
Step-by-step explanation:
a negative times a negative equals a positive.
she didn't notice that x could also be x = -7
Hey i need help with 10.7
1. The standard equation of the circle is x² + y² = 4. 2. The standard equation of the circle is (x - 3)² + (y - 2)² = 4.
What is a circle?The points in a plane that are equally spaced apart from a fixed point known as the centre make up a circle, which is a two-dimensional geometric object. The radius of a circle is the separation between its centre and any other point on the circle. The circle is one of the most fundamental and significant geometric forms. It is used in many fields of science, mathematics, and engineering, including calculus, coordinate geometry, and trigonometry. The design of wheels, gears, and lenses as well as the simulation of scientific events like the motion of planets and electrons are other common practical uses for circles.
The standard equation of a circle is
(x - h)² + (y - k)² = r²,
where (h,k) is the center of the circle and r is its radius.
1. Center (0, 0) and radius = 2:
(x - 0)² + (y - 0)² = 2²
x² + y² = 4
Therefore, the standard equation of the circle is x² + y² = 4.
2, Center (3, 2) and radius = 2:
(x - 3)² + (y - 2)² = 2²
(x - 3)² + (y - 2)² = 4
Therefore, the standard equation of the circle is (x - 3)² + (y - 2)² = 4.
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What is u if
7 = 10 + u ?
Answer:
u = -3
Step-by-step explanation:
[Given]
7 = 10 + u
[Subtract 10 from both sides of the equation]
-3 = u
[Reflexive Property]
u = -3
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather
2/7 = 4/d need a step by step answer please
12)50 students took a quiz with five questions. The frequency table below shows the results of the quiz. Use the frequency table to answer the following questions. ValueFrequencyRelative FrequencyCumulative Frequency040.084180.1612260.1218320.04204150.3355150.350
e) Finding how many students answered at most 4 questions.
The number of students that answered at most 4 questions correctly is:
Students answered 0 questions correctly + Students answered 1 question correctly + Students answered 2 questions correctly + Students answered 3 questions correctly + Students answered 4 questions correctly
So, the number of students is:
4 + 8 + 6 + 2 + 15 = 35
35 students answered at most 4 questions correctly.
f) Finding the sum of relative frequency.
The sum of relative frequency is:
0.08 + 0.16 + 0.12 + 0.04 + 0.3 + 0.3
Sum = 1.
The sum of the relative frequency in a distribution is always 1.
g) Creating a histrogram
To create a histogram, create a bar for each result correct. The values of the frequency will be used in the y-axis.
Find the sum of the series if n = 6, r = 1/4, a = 2.
Given =
n=6,
r=1/4
a=2
Sn = a+ar+ar²+ar³+ar⁴+ar⁵= 2+0.5+0.125+0.03125+0.0078125+0.00195~ 2.67
Prove: triangle BAD is congruent to triangle CDA
Step
Statement
Reason
BD AC
BA= DC
Given
2
ZBEA UCED
Vertical angles are congruent
3
ZBEC ZAED
Vertical angles are congruent
4
AC - AC
Reflexive Property
5
BD BD
Reflexive Property
try
Type of Statement
B
с
A
hope you will like it
Does anyone have any tips on how to stop being lazy and unmotivated and try to study? I’ll just feel so tired and disconnected to everything and I keep on over thinking about it while getting a sick feeling in my stomach from it. I just need some tips and help to study and do it daily?
Answer:
one of the things that helps is to study at certain times, because trying to do it for a while at once, you will feel burnt out. try to study for a half hour, then go do something else for a half hour to an hour, and just keep doing that until you feel more comfortable and motivated to start studying for a longer time. There are many different things you can do to help, but hopefully you find this useful
How to do this problem
Answer:
a. geometric series
b. r_n = 100 × (0.75)^n ft
c. 400
Step-by-step explanation:
a.
Start: 100 ft
After 1 hour: 75% of 100ft = 100 ft × 0.75
After 2 hours: 75% of 100ft × 0.75 = 100 ft × 0.75²
After 3 hours: 75% of 100 ft × 0.75² = 100 ft × 0.75³
Notice what is happening to the radius as the hours pass.
With each passing hour, the radius is 0.75 times the previous radius.
Since each new term is the previous term multiplied by a constant, 0.75, this is a geometric series.
b.
At each hour, multiply 100 ft by 0.75 raised to the number of the hour.
a_n = 100 × (0.75)^n ft
The nth term is 100 times 0.75 to the nth power.
c.
The sum of all the radii is the sum of a series that has 100 as its first term, and each subsequent term is 0.75 times the previous term.
r_n = 100(0.75)^n
Since the constant ratio has an absolute value less than 1, the series has a sum.
S = a_1/(1 - r)
S = sum of infinite series
a_1 = first term
r = constant ratio
S = 100/(1 - 0.75)
S = 100/0.25
S = 400
Find the surface area of the pyramid.
A drawing of a square pyramid. The length of the base is 4.5 meters. The height of each triangular face is 6 meters.
The surface area of the pyramid is 74.25 square meters.
What is surface area?Surface area is the total area that the surface of an object occupies. It is the sum of the areas of all the faces, sides, and curved surfaces of an object. Surface area is usually measured in square units, such as square meters, square feet, or square centimeters.
What is pyramid?A pyramid is a polyhedron with a polygonal base and triangular faces that meet at a common vertex (known as the apex). Pyramids are named according to the shape of their base.
In the given question,
The area of the base is simply the area of a square, which is:
Area of base = length x width = 4.5m x 4.5m = 20.25 square meters
To find the area of each triangular face, we first need to find the length of the slant height (the height of the triangle).
We can use the Pythagorean theorem to do this:
h²= (1/2 x base)² + height²
h² = (1/2 x 4.5)² + 6²
h² = 2.25 + 36
h² = 38.25
h = √38.25
h = 6.18 meters (rounded to two decimal places)
Now that we know the slant height, we can find the area of each triangular face:
Area of one triangular face = (1/2 x base x height) = (1/2 x 4.5 x 6) = 13.5 square meters
Since there are four triangular faces on a square pyramid, we need to multiply this by 4 to find the total area of the triangular faces:
Total area of triangular faces = 4 x 13.5 = 54 square meters
Finally, we can find the surface area of the pyramid by adding the area of the base and the area of the triangular faces:
Surface area = Area of base + Total area of triangular faces
Surface area = 20.25 + 54
Surface area = 74.25 square meters
Therefore, the surface area of the pyramid is 74.25 square meters.
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Could someone help me solve this? Lines AB and CD are parallel. Enter the measures of the three angles in triangle ABF.
Answer:
A=43
B=32
C=105
Suppose a gas tank is in the shape of a cylinder. The tank is 20 feet long and 8 feet in diameter. Find the amount of metal used to construct the tank. (Hint: use 3.14 for pi)
A 384.5ft2
B 1028ft2
C 602.9ft2
D 1570.4ft2
Answer:
C. 602.9 ft²Step-by-step explanation:
Surface area of a cylinder:
A = 2πr(h + r)Substitute values:
A = 2(3.14)(8/2)(20 + (8/2)) = 2*3.14*4*24 = 602.88 ft²Matching choice is C
A truck rental company charges $25 per day plus $.32 per mile. Find the cost of renting a truck for a one-day trip of 500 miles.
Hey! I’m doing a test and I’m really stuck on this problem
3 (y + 6) + 10 = -8
What is y?
Answer:
y= -12
Step-by-step explanation:
3y+18+10=-8
Basically just used the distributive property
Combine like terms:
3y+28=-8
-28. -28
3y=-36
y=-12
Answer:
y = -11
Step-by-step explanation:
3(y+6) + 10 = -8
3y + 18 + 10 = -8
3y = -8 - 18 - 10
/3 /3
y = -12
Help with the following equation 8x²-6x-5=x
Answer:
\(8 {x}^{2} - 6x - 5 = x\)
\(8 {x}^{2} - 7x - 5 = 0\)
x = (7 + √((-7)^2 - 4(8)(-5)))/(2×8)
= (7 + √(49 + 160))/16
= (7 + √209)/16
= -.4661, 1.3411 (to 4 decimal places)
calculate the area of this trapezium
Answer:
Step-by-step explanation:
Let the trapezium be B.
Draw a line from the top of the trapezium to it's base and call the triangle formed B.
The base of is 2cm (8cm - 6cm
The area of the triangle = 40cm² ( 5cm x 4cm x 2cm)
Area of the trapezium =. ½ (base x height)
. = 18cm²
Add area of trapezium and triangle.
= 40cm² + 18cm² = 58cm²
.