Which expression is a perfect cube

Answers

Answer 1

Answer: some perfect cubes are

8 (2^3)

27 (3^3)

64 (4^3)

there are many perfect cubes

maybe there is more to this question?

Step-by-step explanation:

A perfect cube of a number is a number that is equal to the number, multiplied by itself, three times. If x is a perfect cube of y, then x = y3. Therefore, if we take the cube root of a perfect cube, we get a natural number and not a fraction. Hence, 3√x = y. For example, 8 is a perfect cube because 3√8 = 2.


Related Questions

Write these ratios in their simplest form. You must show all your workings:
a. 2 litres:600ml
b.8h:1day
c.3km:250m​

Answers

The simplest form of the given ratios are : 10:3 , 1:3 , and 12:1

What is Ratio?

A ratio indicates how many times one number contains another.

Here, for given ratio

2 litres : 600 ml    = 2000 ml : 600 ml

                             = 20 : 6

                            = 10 : 3

8 h : 1 day       =  8 hrs : 24 hrs

                        = 8:24

                       = 1 : 3

3 km : 250 m = 3000 m : 250 m

                      = 3000 : 250

                      = 300 : 25

                     = 12 : 1

Thus, the simplest form of the given ratios are : 10:3 , 1:3 , and 12:1.

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The regular price of a CN Tower Souvenir was $32, During its sale, The price was reduced down by $24, Find the percent discount

Answers

Answer:

Discount of 25%

Step-by-step explanation:

To find the percent discount, subtract the big number minus small number then divide by the original number.

[tex]\frac{32-24}{32}[/tex]

[tex]\frac{8}{32} \\[/tex]

Reduce

[tex]\frac{1}{4}[/tex]

Change to a decimal by dividing

1/4 = 0.25

Change to a percent by moving the decimal two places right.

0.25 -----> 25%

Buying rental property is an investment option that carries a higher risk than some other options. However, the returns can be good. Assume you have purchased a single-
family home that you intend to rent for $850 per month. You will have the following expenses:
Monthly mortgage $390
Monthly insurance $70
Semi annual property taxes $380
Repairs (yearly estimate) $500
Monthly lawn care or snow removal $125
The total yearly expenses for the rental property will be_____.00.

Answers

Based on the expenses involved in running the property, and the rental amount, the return on the investment would be 18.82%.

What is the return on investment?

The ratio of net income to investment is known as return on investment (ROI). A high return on investment (ROI) indicates that the investment's benefits outweigh its cost.

ROI is a performance indicator that is used to assess an investment's effectiveness or to compare the efficiencies of several distinct investments.

First, find the amount earned per year:

= 850 x 12

= $10,200

The yearly expenses would be:

= (390 x 12) + (70 x 12) + (380 x 2) + 500 + (125 x 12)

= 4,680 + 840+ 760+ 500 + 1500

= $8280

The annual ROI is:

ROI= (10,200 - 8280) / 10,200 x 100%

ROI = 18.82%

Therefore the expenses involved in running the property, and the rental amount, the return on the investment would be 18.82%.

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Solve for x.

x³ = 216

Enter your answer in the box.

x =

Answers

[tex]x^3=216\\x=\sqrt[3]{216}=6[/tex]

This is a simple example. You (should) know that [tex]6^3=216[/tex].

But you can solve it like this:

[tex]\begin{array}{r|l}216&2\\108&2\\54&2\\27&3\\9&3\\3&3\\1\end{array}[/tex]

Therefore

[tex]\sqrt[3]{216}=\sqrt[3]{2^3\cdot3^3}=\sqrt[3]{2^3}\cdot\sqrt[3]{3^3}=2\cdot3=6[/tex]

Hi student, let me help you out! :)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We are asked to find the value of x in the equation [tex]\pmb{x^3=216}[/tex].

[tex]\triangle~\fbox{\bf{KEY:}}[/tex]

The goal is to get x all by itself on one side of the equal sign.

Is x by itself? No, it's cubed, or multiplied times itself three times.

So we need to use the opposite operation.

The opposite of cubing is taking the cube root, so we take the cube root of both sides:

[tex]\star~\large\pmb{\sqrt[3]{x^3}=\sqrt[3]{216}}[/tex]

On the left, the cube root sign and the cube cancel, because they're opposite, and we're left with x.

On the right, we take the cube root of 216, which gives us:

[tex]\star~\large\pmb{x=6}[/tex]

Hope it helps you out! :D

Ask in comments if any queries arise.

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~Just a smiley person helping fellow students :)


Which algebraic expression is equivalent to the expression below?

3(5x + 7)-6(4- 2x)

Answers

3(5x+7)-6(4-2x) - given

15x+21-24+12x - distributive property

27x-3 - combine like terms

27 As shown in the diagram below, secants PWR and PTS are drawn to circle O from external point P.
12/
O.
W
T
P5
If m/RPS = 35°and mRS = 121°, determine and state mWT.

Answers

By applying the Theorem of Intersecting Secant, the measure of angle WT is equal to 51°.

How to determine angle m<WT?

By critically observing the geometric shapes shown in the image attached below, we can deduce that they obey the Theorem of Intersecting Secants.

What is the Theorem of Intersecting Secants?

The Theorem of Intersecting Secants states that when two (2) lines intersect outside a circle, the measure of the angle formed by these lines is equal to one-half (½) of the difference of the two (2) arcs it intercepts.

By applying the Theorem of Intersecting Secant, angle P will be given by this formula:

m<P = ½ × (m<RS - m<WT)

Substituting the given parameters into the formula, we have;

35 = ½ × (121 - m<WT)

70 = 121 - m<WT

m<WT = 121 - 70

m<WT = 51°.

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write 25.59 in scientific notation

Answers

Answer:

2.559 × 10 to the 1st power

Step-by-step explanation:

using a SNC

Answer:

2.559 * 10^1

Step-by-step explanation:

Rules of scientific notation (that I always remember)

    - the number must be between 1 and 9

    - if number gets smaller, exponent gets bigger; if number gets bigger, exponents gets smaller

25.59 is bigger than 9 so we move the decimal one place value to the left

and the number gets smaller meaning the exponent increases

what's the answer to this

Answers

Answer:

AC ≈ 17.3 , BC ≈ 5.3

Step-by-step explanation:

using the tangent ratio in right triangle ACD

tan51° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{AC}{AD}[/tex] = [tex]\frac{AC}{14}[/tex] ( multiply both sides by 14 )

14 × tan51° = AC , then

AC ≈ 17.3 ( to the nearest tenth )

using the cosine ratio in right triangle ABC

cos72° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{BC}{AC}[/tex] = [tex]\frac{BC}{17.3}[/tex] ( multiply both sides by 17.3 )

17.3 × cos72° = BC , then

BC ≈ 5.3 ( to the nearest tenth )

EASY POINTS Find the domain of the graphed function.

Answers

Using it's concept, it is found that the domain of the graphed function is given as follows:

D. [tex]-4 \leq x \leq 2[/tex]

What is the domain of a function?

It is the set that contains all possible input values for the function. In a graph, it is given by the values of x.

In this graph, x assumes values between -4 and 2, inclusive due to the closed circle, hence the domain is given by:

D. [tex]-4 \leq x \leq 2[/tex]

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A prism has three times the volume of a pyramid with the same base and altitude.
O
A. True
O
B. False

Answers

Answer:

I believe it's true. Good Luck! :)

Step-by-step explanation:

Someone, please help!! if u actually know how to do it

Answers

Answer:

[tex]distance=\sqrt{(-2-(-5))^{2} +(6-(-10))^{2}}[/tex]

distance = 16.2788

Step-by-step explanation:

This question is asking you to correctly apply the distance formula. This formula determines the straight line distance between two points by applying Pythagorean's Theorem ([tex]h = \sqrt{x^{2}+y^{2} }[/tex]). The distance formula can be thought of as [tex]distance=\sqrt{(x_{1}-x_{2})^{2} +(y_{1}-y_{2})^{2}}[/tex]. It doesn't matter which order you put your coordinates into the equation as long as it's the square root of the change in x-coordinates squared + change in y-coordinates squared.

Step 1: change in x-coordinates

x1 = -2

x2 = -5

x1 - x2 = -2 - (-5) = 3

Step 2: change in y-coordinates

y1 = 6

y2 = -10

y1 - y2 = 6 - (-10) = 16

Step 3: plug into distance formula

[tex]distance=\sqrt{(-2-(-5))^{2} +(6-(-10))^{2}}[/tex]

[tex]distance=\sqrt{(3)^{2} +(16)^{2}}[/tex]

[tex]distance=\sqrt{9 +256}[/tex]

[tex]distance=\sqrt{265}[/tex]

distance = 16.2788

Please solve (21 points)

Answers

Answer:

he width of the ravin is 47

A train leaves Thorn Junction at 1:25 P.M. and arrives in Niles at 3:05 P.M. The train makes two stops along the route for a total of 15 minutes.

A second train leaves Thorn Junction at 4:30 P.M. and heads to Niles. This train does not make any stops.

What time will the second train arrive in Niles? Enter your answer in the boxes.

:
P.M.

Answers

Answer: It will arrive at 5:55 P.M

Step-by-step explanation:

please help 35 points!!

Answers

Answer:

67m²

Step-by-step explanation:

12m + 6m + 4m + 36 m 8m = 67m²

Explain why the "+ C" is not needed in the antiderivative when evaluating a definite integral.

Answers

The reason the "+ C" is not needed in the antiderivative when evaluating a definite integral is; The C's cancel each other out as desired.

How to represent Integrals?

Let us say we want to estimate the definite integral;

I = [tex]\int\limits^a_b {f'(x)} \, dx[/tex]

Now, for any C, f(x) + C is an antiderivative of f′(x).

From fundamental theorem of Calculus, we can say that;

[tex]I = \int\limits^a_b {f'(x)} \, dx = \phi(a) - \phi(b)[/tex]

where Ф(x) is any antiderivative of f'(x). Thus, Ф(x) = f(x) + C would not work because the C's will cancel each other.

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6. Dana measured the height of her
bedroom wall to be 3 yards tall. Which of
these is closest to the equivalent
measurement?

Answers

Answer:

9 feet, 108 inches, 274.32 cm, 2.7432 meters

Step-by-step explanation:

Not enough information is given to answer.

You didn't provide the list of "these" to choose from, but I can just list some potential answers I could see being an option.

3 yards = 9 feet [1 yard = 3 feet. 3 yards = 9 feet]

             9 feet is also 108 inches [1 foot = 12 inches. 9 feet = 108 inches]

3 yards = 108 inches

{There are 91.44 cm in a yard} (1 yard = 91.44 cm. 3 yards = 274.32 cm),

3 yards = 274.32 cm

3 yards = 2.7432 meters (1 yard = 0.9144 meters; 3 yards = 2.7432 meters)

the zeros of the function f(x) = x² + 5x - 6 are show your work

Answers

Answer:

x = - 6 , x = 1

Step-by-step explanation:

to find the zeros let f(x) = 0 , that is

x² + 5x - 6 = 0

consider the factors of the constant term (- 6) which sum to give the coefficient of the x- term ( + 5)

the factors are + 6 and - 1 , since

6 × - 1 = - 6 and 6 - 1 = + 5 , then

(x + 6)(x - 1) = 0 ← in factored form

equate each factor to zero and solve for x

x + 6 = 0 ⇒ x = - 6

x - 1 = 0 ⇒ x = 1

A tower that is 125 feet tall casts a shadow 173 feet long find the angle of elevation of the sun to the nearest degree

Answers

Applying the tangent ratio, the angle of elevation of the sun, to the nearest degree, is: 36°.

What is the Tangent Ratio?

In a right triangle, tan ∅ = opposite length / adjacent length is the tangent ratio.

Given the following:

Angle of elevation = ∅ Opposite length = 125 ftAdjacent length = 172 ft

Apply the tangent ratio:

tan ∅ = 125/172

tan ∅ = 125/172

∅ = tan^(-1)(125/172)

∅ ≈ 36°

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help please? 50 points if correct

Answers

Answer:

15400 in² :)))!

Step-by-step explanation:

Input Data:

Radius = 70 in

Objective:

Find the area of the circle.

Solution:

Area = πr2

= 3.14 x (70) ^2

= 3.14 x (4900)

Area = 15400 in²

12 to 30 Express as a fraction in the lowest terms? ​

Answers

Answer:

2/5

Step-by-step explanation:

It takes Kenesha 45 minutes to prepare 20 greeting cards. It takes Paula 30 minutes to prepare the same number of cards. Working together at this rate, how long will it take them to prepare the cards?

Answers

Using the together rate, it is found that it will take them 18 minutes to prepare the cards working together.

What is the together rate?

The together rate is the sum of each separate rate.

In this problem:

The together rate is of 1/x.Kenesha's rate is of 1/45.Paula's rate is of 1/30.

Hence, the time it will take for them to make the cards is given by:

[tex]\frac{1}{x} = \frac{1}{45} + \frac{1}{30}[/tex]

[tex]\frac{1}{x} = \frac{5}{90}[/tex]

5x = 90

x = 18 minutes.

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find the 44th term in the following arithmetic sequence

2,3,4,5,....

Answers

Answer:

the answer is 45

Step-by-step explanation:

the answer is 384

Step-by-step explanation:

a1 = 2, a2 = 3, a3 = 4,

an = ?

n = 44

d = a2 - a1 = 3 - 2 = 1

d = a3 - a2 = 4 - 3 = 1

Here, the common difference is the same everywhere

So,

[tex] a_{n} = a + (n - 1) \times d[/tex]

[tex]a_{44} = 2 + (44 - 1) \times 1[/tex]

[tex]a_{44} = 2 + 43[/tex]

[tex]a_{44} = 45[/tex]

The cost of printing books C varies partly as the amount A charged by the printer
and partly varies inversely as the number n of books printed. When 1000 books
were printed, the amount charged was GHC5000 and the cost of printing was
GHC75010 and when 2500 books were printed, the amount charged was
GHC10000 and the cost of printing was GHC50,004.
Find an equation connecting C,A and n

Answers

The equation connecting C,A and n is  C = 25A - [tex]\frac{49990000}{n}[/tex]

What is variation?

Variation is a mathematical term used to show how a quantity behaves when one quantity increases or decreases.

Analysis:

C = AK + M/n

where K and M are constants

when n = 1000, A = 5000, C = 75010

75010 = 5000K + M/1000-----------1

50004 = 10000k + M/200-------------2

solving simultaneously,  K = 25, M = -49990000

C = 25A - 49990000/n

In conclusion, the equation connecting C,A and n is C = 25A - 49990000/n

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Find x to the equation

Answers

1.85 or 1.9 i believe will be the answer

convert the following equation into standard form y=-5x/8 + 3

Answers

The answer is 5x-8y= -24

1 + 3 + 5 + A+9 divide by 5​

Answers

Answer:

1 + 3 + 5 + A+9 divide by 5​

Step-by-step explanation:

Solve the triangle: α = 40°, β = 35°, and a = 10.
b = 8.9, γ = 105°, c = 6.7
b = 11.2, γ = 105°, c = 6.7
b = 11.2, γ = 105°, c = 15.0
b = 8.9, γ = 105°, c = 15.0

Answers

The triangle: α = 40°, β = 35°, and a = 10. is b = 8.9, γ = 105°, c = 15.0

What is Sine Law?

If A, B, and C are the measurements of the angles of an oblique triangle, and a, b, and c are the lengths of the sides opposite of the corresponding angles, then the ratios of the a side’s length to the sine of the angle opposite the side must all be the same.

a/ sin A = b/ sin B = c/ sin C

Using Angle sum property in a triangle we have,

α+β+ γ = 180

40+35+ γ=180

γ= 180-75

γ= 105°

Now,

c/ sin γ= a/ sin α

c/ sin 105= 10/ sin 40

c/ 0.96592 = 10 /0.6427

c = 15

again,

b/ sin  β=  a/ sin α

b/ sin 35=  10/ sin 40

b/0.5737= 15.559

b= 8.92

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Triangles 3 and 4 are identical. They are joined in the poster to form a square. Construct a math argument to show why triangles 3 and 4 are isosceles right angles.

Answers

Triangles 3 and 4 are isosceles right angles because they have same length.

How to explain the triangle?

It should be noted be noted that the square has all right angles equal. The largest angle of the triangle is the right angle m.

Here, the triangles are isosceles right angles as both the legs and the acute angles are congruent.

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maria has 2 5/6 yard of fabric Jessica has 3 1/6 yards of fabric how much do they have altogether

Answers

Answer:

Step-by-step explanation:

please please help me I'll give whaever​

Answers

answer:

1769.344983 or 1769.34 (depends on what you’re rounding to)

explanation:

- the equation for a cylinder‘s surface area is: (2 π r h)+(2 π r^2)

so 2 just means x2

π is just pi

r is your radius and for this equation your radius is 8 cm

and h is your height so for this equation your height is 27.2 cm

- so the equation filled in is:

(2 x π x 8 x 27.2) + (2 x π8^2) = 1769.344983 or 1769.34

(2 x π x 8 x 27.2) = 1367.221123

(2 x π8^2) = 402.1238597

1367.221123 + 402.1238597 = 1769.344983

hope this helps :)

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Write each of the following products in standard form. Show the work thatleads to your final answers.(a) (x+8)(2x-3)(b) (x-5) Which of the following is a correct pair? 7. What are the x- and y-intercepts for -x + 2y = 8?OA. x-intercept =-8; y-intercept = 4OB. x-intercept = 4; y-intercept = 8OC. x-intercept = 4; y-intercept = -8O D. x-intercept = 8; y-intercept = -4 When a number is halfway between two multiples of one hundred, round to _____.A. zeroB. the smaller multipleC. the nearest fiftyD. the larger multiple Which medium did early native american tribes of the west use to share their culture and history? a totem poles b newspapers c stories d journals 8 9/10 x 1 4/5 = ? please answer soon and thanks how many moles are in 150 grams lf NaOH to use any of the five senses to gather information about something Which of thefollowingstatementswould be true ifthere was a largeimmigrantpopulationcoming into thecountry?A. The will be ashortage of workers.B. There will be asurplus of workers.C. Unemployment willdecrease.9 Sleeping is a behavior that is dependent on both instinctive and environmental conditions. please select the best answer from the choices provided t f 1. The ribosomes of which of these pairs of organisms would be expected to be most similar? A. Libytheinae and Charazinae B. Libytheinae and Calinaginae C. Satyrinae and Calinaginae D. Satyrinae and Charazinae2.The data presented would best support the theory of evolution if which of the following were also true? A. The Nymphalidae are more advanced than other butterflies. B. The Nymphalidae have more mutations than other butterflies. C. The Nymphalidae share a common ancestor with other butterflies. D. The Nymphalidae live in different geographies from other butterflies. Formal Standard English and Standard English are the same things. true or false evaluate f(x) = 3/6x+6 when x = -1a) undefined b) 0c) 3d) 3/36 What is the area of the parallelogram? A parallelogram has a base of 3 feet and height of 2 and one-half feet.7 and one-half feet squared9 feet squared10 and one-half feet squared12 feet squared Four students measured the acceleration of gravity. the accepted value for their location is 9.78 m/s2. which student's measurement has the largest percent error? The base where a hair follicle originates in the skin is known as the __________. Simplify the expression (7 + 9i)(8 - 10i) Choose a product that you believe should be carefully monitored for the purpose of ensuring that marketers are not taking advantage of a vulnerable population. Explain why in your own words.30 POINTS IF YOU ANSWER THIS! Help PLS ASAP!!!!!!!!!!!! For a two-tailed test with a sample size of 20 and a. 20 level of significance, the t value is _____.