What option is the same as 1/5^-3? A. -1/125 B. -1/15 C. 15 D. 125
Answers
Answer:
D. 125
Step-by-step explanation:
Given
\((\frac{1}{5})^{-3}\)
Required
Find Equivalent
From law of indices
\((\frac{1}{a})^{-x} = \frac{1}{(\frac{1}{a})^{x}}\)
So,
\((\frac{1}{5})^{-3} = \frac{1}{(\frac{1}{5})^{3}}\)
Expand denominator
\((\frac{1}{5})^{-3} = \frac{1}{(\frac{1}{5})*(\frac{1}{5})*(\frac{1}{5})}}\)
\((\frac{1}{5})^{-3} = \frac{1}{(\frac{1}{125})}}\)
Split expression on the right and side
\((\frac{1}{5})^{-3} = 1/{(\frac{1}{125})}}\)
Convert divide (/) to multiplication (*)
\((\frac{1}{5})^{-3} = 1*{(\frac{125}{1})}}\)
\((\frac{1}{5})^{-3} = 1*125\)
\((\frac{1}{5})^{-3} = 125\)
Hence, \((\frac{1}{5})^{-3}\) is equivalent to 125
Related Questions
For each ride, a taxi service charges an initial fee plus an additional fee based on the number of kilometers of the trip. The graph shows the cost for taxi rides. Select a true statement. The rise is 4 while the run is 2. The selection of answers are:
A: The slope is 2.1. This means that each kilometer costs $2.10.
B: The slope is 5. This means that each kilometer costs $5.
C: The y-intercept is 2.1. This means that the initial fee is $2.10.
D: The y-intercept is 5. This means that the ride lasts 5. kilometers.
Which one is right and why?
Answers
THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!
The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.
The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.
Select the expressions that are equivalent to 5(6a).
Answers
Answer:
A
Not B
Not C
Not D
Step-by-step explanation:
Answer:first one
Step-by-step explanation:
I know this question is not about math or science but my friends are saying the Leonardo DiCaprio when he was young is hotter than Zac Efron now and when he was young. I need y’alls opinions.
Who is hotter, young Leonardo DiCaprio or 35 year old Zac Efron? My pick is Zac Efron but I want some opinions.
Answers
Answer:
it's Zac Efron for sure, Leonardo DiCaprio is just not the same...
A music store buys instruments and then sells them for 30%more than they paid.
If the store buys a guitar for $45, what will the store sell it for?
Thank you!
Answers
Answer:
The store will sell the guitar for $58.50
Step-by-step explanation:
$45 * 1.3 = $58.50
Since the price they bought it for is $45 and the markup percent is 30%, we multiply $45 by 1.3, which will give us $58.50.
So your answer is £58.50
Hope this helped
Please help me answer please actually answer
Answers
Answer:
your answer will be 29*
am not sure
Step-by-step explanation:
you would have to add the 97 and 54 and then subtract that number from 180 because 180 is the total degree of every triangle and then after the subtraction you get 29. also love shoto in the back :D
The lengths of the five longest interstate
highways are listed.
Which two highways have a difference
of 440 miles? Explain how you can use
estimation to find your answer.
1-10: 2460 miles
1-40: 2555 miles
1-70: 2153 miles
1-80: 2900 miles
1-90: 3021 miles
Answers
if you round all of your numbers to the nearest 10th you can add and subtract 440 from your numbers till you find the match, let me know if that makes sense
A camper lights an oil lantern at 12 noon and lets it burn continuously. Once the lantern is lit, the lantern burns oil at a constant rate each hour. At 2 p.m., the amount of oil left in
the lantern is 63 ounces. At 5 p.m., the amount of oil left in the lantern is 61 ounces.
Based on the average rate of oil burning per hour, how much oil, in ounces, was in the lantern at 12 noon? Show your work.
Answers
Answer:
64.33 ounces
Step-by-step explanation: The rate at which the oil burns.
1 hour = 2/3 ounce
At 2 pm = 63 ounces
At 5 pm = 61 ounces
The amount of oil at 12 noon is 64.33 ounces.
A bottle contains liter of water. If it is poured equally into four cups, 1/3 how much water will be in each cup? Which of the following statements are true?
a. ⅓ must be divided into fourths.
b. After dividing ⅓ into four equal parts, the whole has twelve equal parts.
c. Each cup will have ¼ liter of water.
d. I can’t find the answer because I don’t know the size of the cups.
Answers
Simplify: x - 8 – 6x + 2 *
Pls help
Answers
Answer:
i belive its -6 -5x
Step-by-step explanation:
-8 and 2 is -6
x and -6x is -5x
HELPPP PLEASE OR I WONT BE ABLE TO PLAY ANY GAMESSS
What is the mean of the data set shown below?
{14, 15, 18, 20, 25}
A. 18.4
B. 18.2
C. 18
D. 11
Will give brainliest to the first who has a good answer!
Answers
Answer:
A. 18.4
Step-by-step explanation:
The mean is the average. In order to find the answer you must add all the values of the variables and divide them by the number of variables. Simply just add 14, 15, 18, 20, and 25, and then divide it by 5 (the number of variables). Then you get your answer.
14+15+18+20+25=92
92/5=18.4
A. 18.4
Answer:
A. 18.4
Step-by-step explanation:
Mean
\( = \frac{14 + 15 + 18 + 20 + 25}{5} \\ \\ = \frac{92}{5} \\ \\ = 18.4\)
Hope it helps
(CORRECT ANSWER GETS BRAINLIEST.)
Mrs. Brim made a chart to see how long it took her students to finish a test. Which statement below is a reasonable conclusion based upon the information in the histogram?
A.50% of the students took longer than 31 minutes to finish the test. B.The exact time it took the students to finish the test is not indicated. C.The boys in the class completed the test faster than the girls. D.The test was easy.
Answers
Answer:
Step-by-step explanation:
Based on the information in the histogram, a reasonable conclusion would be that the exact time it took the students to finish the test is not indicated. Therefore, option B is the correct answer.Mrs. Brim made a chart to see how long it took her students to finish a test. However, the chart or histogram only shows how many students took a certain amount of time to finish the test and not their exact finishing time. Therefore, it's not possible to determine how long each student took to finish the test accurately.
Hope this helps! :)
What is 2. 8×4. 6 find the missing partial products
Answers
—> 12.88 <—
A N S W E R
hope this helps
help me this one plssssssssssss
Answers
Answer:
The integer that describes the translation from B to B' is (-2,1)
Solve for r.
–142 = r − 953
r =
Answers
Answer:
811
explanation.
142=−953−142+953=−953+953
There are currently 6,210 fish in a lake. If the number of fish in the lake increased by 15 percent during the last year and 20 percent during the year before that, how many more fish are in the lake currently than in the last two years ago?
Answers
I’m pretty sure the answer should be 1,710 if not i’m sorry
Answer:
1710 fish
Step-by-step explanation:
Let the number of fish in the lake last year be 'x'
The equation becomes-
x + 15x/100=6210 (This is because 15% of x is added in x to become
6210... hope you understand)
x + 15x/100 = 6210
115x/100 = 6210
23x/20 = 6210
x = 6210 * 20/23
x = 270 * 20
x = 5400
Therefore- The number of fish last year = 5400
Now, let the number of fish in the lake 2 years ago be 'y'
The equation becomes-
y + 20y/100 = 5400 (Same logic as last time)
y + 20y/100 = 5400
120y/100 = 5400
24y/20 = 5400
6y/5 = 5400
y = 5400 * 5/6
y = 900 * 5
y = 4500
Therefore- Fish in the lake two years ago = 4500 fish
Difference between current and two years ago = 6210-4500
= 1710 fish
Hope you understood the answer and I hope it helps you :)
what is the area of a semi circle when the diameter is 6
Answers
Answer: 14.13
Step-by-step explanation:
Your answer is 14.13
First, the formula for area of a semi circle is 3.14 x r^2 and divide by two.
To find the radius, we need to divide the diameter by two, which is 3.
So like
3.14 x 3^2/2
3.14 x 9/2
28.26/2
A=14.13
Answer:
14.13
Step-by-step explanation:
normal circle area equation = r^2*3.14
6/2=3
3*3*3.14
= 28.26
it's a semicircle so /2
=14.13
ANSWER THIS CORRECTLY TO BE BRAINLIEST
Answers
Answer:
Q6. -5/2
Q7. -7/24
Q8. 127/24
Q9. 151/12
Step-by-step explanation:
Q6. (−3/4)+(−7/4) = -3-7/4 = -10/4 = -5/2
Q7. 3/8 - 2/3 = 3*3/8*3 - 2*8/3*8 = 9/24 - 16/24 = 9-16/24 = -7/24
Q8. 18+2/3 - 8+3/8 = 20/3 - 11/8 = 20*8/3*8 - 11*3/8*3 = 160-33/24 = 127/24
Q9. 12+1/4 + 27+1/3 = 13/4 + 28/3 = 13*3/12 + 28*4/12 = 39 + 112/12 = 151/12
9 : 32 1/3
Solve the equation r = 1/(x-1) for x in terms of r. In other words, manipulate the equation until you have x equal to an expression with r's in it but no x's.
Answers
Answer:
\(x=\frac{1}{r} +1\)
Step-by-step explanation:
\(r=\frac{1}{x-1}\)
\(r(x-1)=1\)
\(x-1=\frac{1}{r}\)
\(x=\frac{1}{r} +1\)
Answer:
\(x=\dfrac{1+r}{r}\)
Step-by-step explanation:
Given equation:
\(r=\dfrac{1}{(x-1)}\)
Multiply both sides by (x - 1):
\(\implies r(x-1)=\dfrac{1}{(x-1)} \cdot (x-1)\)
\(\implies r(x-1)=1\)
Expand the brackets:
\(\implies rx-r=1\)
Add r to both sides:
\(\implies rx-r+r=1+r\)
\(\implies rx=1+r\)
Divide both sides by r:
\(\implies \dfrac{rx}{r}=\dfrac{1+r}{r}\)
\(\implies x=\dfrac{1+r}{r}\)
Write the expression:
subtract 10 from r, then double the result
Answers
Answer: (q + 10) - r
Step-by-step explanation:
2(r-10)
Find x and y. pls help
Answers
Answer:
y = 21
x = 8
Step-by-step explanation:
AB = 180
27 + 3y = 90°
-27 -27
-----------------------
3y = 63
÷3 ÷3
--------------
y = 21
x + 27 + 3y + 8x + 18 = 180
9x + 45 + 3(21) = 180
9x + 45 + 63 = 180
9x + 108 = 180
-108 -108
-----------------------
9x = 72
÷9 ÷9
----------------
x = 8
I hope this helps!
X = 8
We can figure out Y by finding the right angle. A right angle is 90 degrees so we start out with:
90-27
Then,
63/3
21.
Do the same for X to get 8
Heeeeeeeeeeelp meeeeeeeeeeee
Answers
Answer:
ok have a good day sir/ma'am!
Step-by-step explanation:
2.B=9
Is it possible for you to send a clearer picture
What is the constant rate of change between the two quantities in the table?
Answers
I took the quiz and it was right!!!
Which expression is equivalent to 14m+34m−38(m+1)?
58m+385 eighths m plus 3 eighths
58m−385 eighths m minus 3 eighths
38m−583 eighths m minus 5 eighths
38m+583 eighths m plus 5 eighths
Answers
Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)
Answers
What is 3 tenths x 5/9 and 2 thirds x 3 fourths
Answers
2/3 x 3/4
To make it easier you can divide the numbers with common factors numbers leaving you with 2 x 1/4= 2/4= 1/2
2nd question: 1/6
Again you can divide numbers with common factors so first start with 3 and 9 as they have common factors of 3: 3/10 x 5/9= 1/10 x 5/3
Then start with 5 and 10 which has the common factor of 5: 1/2 x 1/3
Now multiply them giving you 1/6
ayo math peeps more help
Answers
Answer: C, D, D
Step-by-step explanation:
QUESTION 2
An integer is a whole number, and a "real number" is any number that is rational or irrational or an integer.
With respect to this question,
A. Is not an integer. The square root of 7 is an irrational number, which basically means that its a long decimal and can't be written as a fraction. Perfect squares are numbers in which the square roots are whole numbers, with no decimals.
B. Is not an integer. 0.15 sis not a whole number, and in order to be an integer, it must be a whole number.
C. Is an integer. It is a whole number. Note that negative numbers can be integers, as long as they are still whole numbers.
D. is not an integer; its a fraction.
So the answer is C.
QUESTION 3
Irrational numbers cannot be written as fractions, and an easy way to identify them is to see if they are written as long decimals.
A. Perfect square, has to be rational
B. Is wrong because its square root is 5, and 5 is rational
C. Perfect square, has to be rational
D. is right because its not a perfect square
Answer= D
QUESTION 4
Answer= D, because all integers are whole numbers and can be written like fractions .
I hope this is correct :)) Brainliest would be appreciated, i worked pretty hard for this :D
What is this transformation called?
A- Rotation
B- Translation
C- Reflection
D- Dilation
Answers
Kiran read for x minutes, and Andre read for 5/8 more minutes. Write an equation with Kiran as x, to represent how many minutes Andre read.
Answers
Answer:
X = Kiran
A = Andre
X + 5/8 = A
how do i do this? im having trouble
Answers
Explanation:
So both sides of the hangar are equal.
Your goal is to find what each shape is worth.
And the number at the top shows what both sides combined equals.
Since both sides have to be equal you would divide 40 by 2 to represent both sides of the hangar.
So with that both sides equal 20, start on the right because its all one shape.
All four of those triangles combine to equal 20 so you would divide 20 by 4 to get how much each individual shape is worth which would be 5 each purple triangle equals 5.
Knowing this, on the left side you would subtract 5 to represent the triangle which would be 20-5 which equals 15.
You have 5 orange hearts/circles ( i cant see what they are so im going to say circles) so again you would divide 15 by 5 to get each individual shapes value. Leaving you with 3.
Answer:
Purple triangle: 5
Orange circle: 3
Hope this helps and sorry if it was messy!
Right side:
20 divided by 4, will give you 5.
This is the worth of the pink one.
Left side:
20 - 5, is 15.
15 divided by 5 (because of the number of orange in that side) = 3
Answer:
Pink = 5
Orange = 3
please answer this question
