Express each of the following rational numbers in power notation
(i) -1/125

Answers

Answer 1

Answer:

[tex]\displaystyle \large{-5^{-3}}[/tex]

Step-by-step explanation:

Given:

[tex]\displaystyle \large{-\dfrac{1}{125}}[/tex]

Convert to exponent using the laws of exponent:

[tex]\displaystyle \large{\dfrac{1}{a^n} = a^{-n}}[/tex]

That means we must find the base and exponent for 125, which is [tex]\displaystyle \large{5^3}[/tex]:

[tex]\displaystyle \large{-\dfrac{1}{125} = -\dfrac{1}{5^3}}[/tex]

From the law of exponent:

[tex]\displaystyle \large{-\dfrac{1}{5^3} = -5^{-3}}[/tex]

Therefore, the solution is [tex]\displaystyle \large{-5^{-3}}[/tex]


Related Questions

You want to get a cell phone plan including unlimited data, texting, and calls for your first phone you are going to purchase this summer from Sharaf Digital. Surf the internet and find a cell phone you would want to buy and record the price in US Dollars and type at Sharaf Digital.
a) All the plans have a base service charge of $23 per month plus the cost of the phone. Write an expression to represent the service charge.

b) There are three unlimited plans, and each plan incorporates the service charge. Translate each plan into an algebraic expression using the service charge expression from the above question.
Plan 1: $8 less than twice the amount of the service charge.
Plan 2: The quotient of the service charge and 2 increased by a fee of $50 per month.
Plan 3: The sum of half the number of months cubed and a third of the service charge.

c) Which plan would be most cost effective for a 2-year contract? Show all calculations that led to your results. Explain your results comparing the 3 plans.

d) Sharaf Digital is having a special promotion by challenging customers to create their own plan. Customers must write a verbal expression that must include the service charge and at least two operations. The operations to choose from are listed below.
If the plan is within $15 per month of one of the original 3 plans then the customer could choose that plan.
Create a 4th plan and show all calculations that led to your results.

Answers

Answer:Samsung Galaxy Z Fold3 5G 256GB Phantom Black Smartphone

USD 1343

a) All the plans have a base service charge of $23 per month plus the cost of the phone. Write an expression to represent the service charge.

1343 + 23m

b) There are three unlimited plans, and each plan incorporates the service charge. Translate each plan into an algebraic expression using the service charge expression from the above question.

Plan 1: $8 less than twice the amount of the service charge.

(service charge is 23 per month so)

1343 + 2(23m– 8)

Plan 2: The quotient of the service charge and 2 increased by a fee of $50 per month.

1343 + (23m/2 + 50m)

Plan 3: The sum of half the number of months cubed and a third of the service charge.

1343 + (1/2m3 + 1/3(23m))

c) Which plan would be most cost effective for a 2-year contract? Show all calculations that led to your results. Explain your results comparing the 3 plans.

Plan 1: 1343 + (24(23 – 8) = 1703

Plan 2: 1343+ (24x61.5) = 2819

Plan 3: 1343 + (1728 + 552) = 3623

Plan 1 is the most cost effective because it is the cheapest

d) Sharaf Digital is having a special promotion by challenging customers to create their own plan. Customers must write a verbal expression that must include the service charge and at least two operations. The operations to choose from are listed below.

If the plan is within $15 per month of one of the original 3 plans then the customer could choose that plan.

Create a 4th plan and show all calculations that led to your results.

Operations: product, more than, less than, double, sum, divided by, square

The product of 3.5 and the total cost divided by 4

3.5(1343 + (24(23 – 8))/4 = 1490.13

Plan 4 = 1490.13/24 = 62.09

Plan 1: 1703/24

70.95

Step-by-step explanation:

Answer number 20. Please answer all parts to the question.

Answers

1: 7
2: Yes, 20 because it’s isolated from the rest of the points
(I don’t know the other ones, sorryyyyy)

On a farm there was a cow. And on the farm there were 2 sheep. There were also 3 chickens. What is the total mass of the 1 cow, the 2 sheep, the 3 chickens, and the 1 farmer on the farm?
Make a conjecture about how many ants might be on the farm. If you added all these ants into the previous question, how would that affect your answer for the total mass of all the animals?
What is the total mass of a human, a blue whale, and 6 ants all together?
Which is greater, the number of bacteria, or the number of all the other animals in the table put together?

Answers

The total mass of the living things on the farm is 588 kg.

Mass calculation

Since on a farm there was a cow, 2 sheep and 3 chickens, to determine what is the total mass of the 1 cow, the 2 sheep, the 3 chickens, and the 1 farmer on the farm, the following calculation must be performed :

(6.2 x 10) + (4 x 10 x 10) + (2 x 6 x 10) + (3 x 2 x 1) = X62 + 400 + 120 + 6 = X588 = X

Therefore, the total mass of the living things on the farm is 588 kg.

Learn more about mass calculation in https://brainly.com/question/14695611

Find the slope and y intercept

Answers

Answer:

find the angle of the 90 and divide by 5

Step-by-step explanation:

The measures of the bases of a trapezoid are 14 and 20. What is the measure of the median of the trapezoid?

Answers

The median of the trapezoid is = 17

calculation of the median of a trapezoid

A trapezoid is a quadrilateral with one pair of opposite sides parallel. It has parallel sides which are known as the bases.

The base of the trapezoid(B1) =14

The base of the trapezoid (B2) = 20

To calculate the median = half the sum of the base of the trapezoid given.

Therefore,

14+20/2

34/2= 17

Therefore, the median of the trapezoid is = 17

Learn more about the trapezoid here:

https://brainly.com/question/1410008

Please help!! Katherine O'Donnell obtained a personal loan of $1,800 at 10% for 12 months. The monthly payment is $165.00.
What is the new principal after the first payment?

Answers

Answer:

  $1650

Step-by-step explanation:

Each payment is applied first to the amount of interest that is due, then to the remaining principal.

__

For the first monthly payment, the interest due is ...

  I = Prt = $1800(0.10)(1/12) = $15.00

So, the amount of the payment that gets applied to the principal is ...

  payment - interest = $165 -15 = $150

The new balance is ...

  $1800 -150 = $1650.00 . . . . new principal after the first payment

__

The attachment shows the balance after each payment. Each interest amount is rounded to cents. The negative balance after the last payment is the amount of excess that last payment represents.

The trial balance of pacilio security services, incorporated as of january 1, year 7

Answers

A trial balance is a bookkeeping worksheet where the balance of all ledgers are being compiled into the debit and credit column.

What is a trial balance?

It should be noted that a trial balance simply means a list of the general ledgers account that are contained in the business ledger.

The rule for the preparation of a trial balance is that the total debit entries must be equal to the total credit entries.

Learn more about trial balance on:

https://brainly.com/question/24696035

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

60 sq m

Step-by-step explanation:

Area of the figure

= Area of top rectangle + Are of the bottom rectangle

= 5*3 + 5*(3+3+3)

= 15 + 5*9

= 15 + 45

= 60 sq m

Answer:

60 m²

Step-by-step explanation:

Area of the figure

= Top rectangle vertical + Bottom rectangle horizontal

= 3 x 5 + 5 x 9

= 15 + 45

= 60 m²

The copy machine at the library made a copy of Leslie's 3-page essay in just 1/10 of a minute. What is the speed of the copy machine?

Answers

Answer:

30 pages

Step-by-step explanation:

https://brainly.com/question/17253194

Speed is the change in distance of a body with respect to time.

Speed = Distance/Time

If the library made a copy of leslie's 3 page essay in just 1/10 of a minute, this means that she made 3 pages in (1/10 * 60)secs i.e 6secs

To get the speed, we need to calculate the amount of page of essay that are produced in a minute (60secs).

If 3 page essay = 6secs

x page essay = 60 secs

cross multiply

3*60 = 6x

180 = 6x

x = 180/6

x = 30

This shows that 30 page essays are produced in just a minute. Hence the speed of the copy machine is 30page essay/min.

Find the distance between the points!? Help

Answers

Answer:

3\sqrt(5)

or 6.71

Step-by-step explanation:

. PLEASE THIS IS A BIG TEST HELP FAST
Identify the correct measure of the pen, to the nearest 1/8 inch.

Answers

3 7/8 because looking at the ruler, the line is 7 of the 8. hope that’s helps!

Select the THREE expressions that are equivalent to 6x+ 1 - (3x - 1)

Answers

Se

please elaborate 9638x
3x + 26x + 1 + -3x - -16x + -3x + 1 + 1

I need help on this here is the question
Question: If sally has ? cake's and Give away 15 and has 9 left how much did she have before she gived away?
I have 5 days until I have hand it in to My teacher

Answers

Answer:

Step-by-step explanation:

24

Find the volume of the cylinder. Explain or show your reasoning. All measurements are in centimeters

Answers

Step-by-step explanation:

height (h) = 8cm

radius (r) = 5cm

volume of cylinder (v) = [tex]\pi[/tex]r^2h

                                     = 22/7 * (5)^2 * 8

                                     = 628.571cm^3

yah..... help please bro

Answers

Answer:

I think D but I'm not too sure.

Change them all into decimals:

The square root of 2 = 1.41421356

3/2 = 1.5

15% = 0.15

Arrange them:

3/2, square root of 2, 1.3333..., 1.3, 15%

So, B is the correct answer.

Yo I need to bring up my math grade bad so
y>-x+1
(please show it graphed already :D)

Answers

Answer:

Step-by-step explanation:

coefficient on a scatter plot

Answers

The chart that is closer to 1 is B.

(1 + 1/x)^x = 1.0825
find the value of x.​

Answers

Answer: about 0.0202161

Step-by-step explanation:

This is a transcendental equation, so graph the two equations and find the x coordinate where they intersect.

Does sin, cos, tan work for all triangles?

Answers

Answer:

No

Step-by-step explanation:

SOH CAH TOA, or sin cos tan, only works on right triangles.

How do I find a missing length of a triangle?

Answers

Use pythagorean theorem
a^2+b^2 = c^2

Where a and b are the sides of the triangle and c is the hypothenuse side (the side in front of the 90 degree angle)
You just plug in the ones you know and find the missing side.

Yo I need to bring up my math grade bad so
4x-5y>20
(please show it graphed already :D

Answers

Here is how it is graphed:

I NEED THIS RIGHT NOW

Answers

Answer:

E

Step-by-step explanation:

Answer:

E

Step-by-step explanation:

the reason is, for a direct relation between x and z we have too little information.

z could be huge, much, much bigger than y and x, or just bigger by 1 than y.

so, assume e.g. the following 2 scenarios

z = 6

y = 5

x = 4

and

z = 600

y = 26

x = 3

A

x + y > z

is true for the first scenario, but not for the second. so, it is not always true.

B

z - x < z - y

no you subtract something smaller, so the result is bigger. this is not true for any of the scenarios.

C

xz > yz

no, z is the same part in both sides, and when it gets multiplied by something smaller, the result is smaller. this is not true for any of the scenarios.

D

z/x < z/y

no, again z is the same part in both sides, and when it gets divided by something smaller, the result is bigger. this is not true for any of the scenarios.

E

yz > xy

in this case y is the same part on both sides. when it gets multiplied by something bigger, the result will be bigger. so, this is true in all cases.

How long does it take for a $5000 investment to turn into a $7000 investment if it is compounded
semi-annually at 5.2%

Answers

Answer:

well over 3 years and almost over 4 months

Erika ran 2 miles in 18 minutes and 3 miles in 27 minutes​

Answers

I'd love to help you but I don't understand

Please answer the question

Answers

Answer:

a = 104

Step-by-step explanation:

126 + 26 = 152

360 - 152 = 208

208 / 2 = 104

104 = a

Hope this helps :)

(If you need the explanation in words just let me know)

Step-by-step explanation:

Let's find

add up

a+a+26+126=3602a+152=3602a=360-1522a=208a=104

What is the surface area of the triangular prism shown?

A triangular prism. The triangle faces have base 14 meters and height 24 meters. The rectangular bottom has dimensions 10 meters by 14 meters. The height of the prism is 25 meters.
558 m2
976 m2
1,680 m2
1,750 m2

Answers

Answer: 726 meters²

Step-by-step explanation:

   We will need to find the area of five shapes. The base, the top/bottom, and the two triangle sides.

      The area of a triangle is B * H / 2. Since we have two congruent triangles, I will not be dividing by two.

14 * 24 = 336 meters²

-> This value is for both of the triangle faces

      The rectangular bottom is L * W

14 * 10 = 140 meters²

      The two rectangles for the top and bottom will also be L * W. Since these are congruent, I will find the area of one and multiply it by two.

10 * 25 = 250 meters²

      Now I will add them all together for the total surface area:

336 + 140 + 250 = 726 meters²

  -> I don't see this as an option choice listed. I will review my work, but I am currently confused on the options they provide.

Drag the tiles to the correct boxes to complete the pairs. Match the pairs of coordinates with the distances between them.​

Answers

Answer:

See below

Step-by-step explanation:

Use distance formula and find the result for each pair of points.

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

1)

[tex]d=\sqrt{(1-4)^2+(-2-2)^2} =\sqrt{9+16} =\sqrt{25} =5[/tex]

2)

[tex]d=\sqrt{(2-(-8))^2+(-3-7)^2} =\sqrt{100+100} =\sqrt{200}[/tex]

3)

[tex]d=\sqrt{(1-9)^2+(9-1)^2} =\sqrt{64+64} =\sqrt{128}[/tex]

4)

[tex]d=\sqrt{(-8-(-2))^2+(2-(-6))^2} =\sqrt{36+64} =\sqrt{100} =10[/tex]

#1

√(4-1)²+(2+2)²√3²+4²√5²5units

#2

√(-8-2)²+(7+3)²√10²+10²√200units

#3

√(9-1)²+(1-9)²√8²+8²√128units

#4

√(-2+8)²+(-6-2)²√6²+8²√10²10units

what is an easy way to memorize like terms ex: 3 +x squared +x -5 +x squared

Answers

Answer:

You can memorize formulas like (a+b)^2 but that's about it, I will write down some formulas that might be useful.

(a+b)^2 = a^2+2ab+b^2

(a-b)^2 = a^2-2ab+b^2

(a-b)(a+b) = a^2+b^2

calculate the zeros: x1,x2 = (-b +/- sqrt(b^2-4ac))/2a

4. Ryan bicycled 100 miles from his home. The table shows his distance, in miles, from home at different times.
What was Ryan's average speed?
A. 5 miles/hour
B. 20 miles/hour
C. 10 miles/hour
D. 25 miles/hour
Ryan's Distance From Home
Time (hours) Distance
(miles)
1.5 30
2 40
2.5 50
3 60

Answers

Answer:

20 miles/hour

Step-by-step explanation:

To find the average speed you can divide the Distance by time.

30 ÷ 1.5 = 20

40 ÷ 2 = 20

50 ÷ 2.5 = 20

60 ÷ 3 = 20

1.) An eagle circled 48 meters above a mouse that scurried in a valley.
The valley's elevation was 16 meters below sea level. At that same moment, a
hot air balloon floated 66 meters above the eagle.
What was the hot air balloon's elevation, relative to sea level?
A. -2 meters
B. 34 meters
C. 98 meters
D. 130 meters

Answers

The hot air balloon's(above the eagle) elevation, relative to sea level is 98 meters

What is elevation?

Elevation is the height to which something is elevated or to which it rises.

Therefore,

The eagle circle 48 meters above the mouse that scurried in the valley. The valley is 16 meters below sea level.

At the same time a hot ballon floated 66 meters above the eagle.

Therefore, the hot air balloon's elevation, relative to sea level is as follows;

elevation = 66 + 48 - 16 = 98 meters

learn more on elevation here:https://brainly.com/question/11987342

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