which expression is a sum of cubes?

Which Expression Is A Sum Of Cubes?

Answers

Answer 1

Answer:

Step-by-step explanation:

A more complicated expression such as 64x3+27y3 64 x 3 + 27 y 3 is also a sum of cubes since 64x3=(4x)3 64 x 3 = ( 4 x ) 3 and 27y3=(3y)3 27 y 3 = ( 3 y ) 3 . Please note, that expressions such as 2x3 2 x 3 are not perfect cubes.


Related Questions

Can someone help please

Answers

Answer:

35.3

Step-by-step explanation:

please mark brainliest

Answer:

35.3

Step-by-step explanation:

On a coordinate plane, a curved line with a minimum value of (negative 1.25, negative 3.25) and a maximum value of (0.25, negative 1.75), crosses the x-axis at (negative 2.25, 0), and crosses the y-axis at (0, negative 2). The line exits the plane at (negative 2.75, 6) and (1.5, 6).
Which statement is true about the end behavior of the graphed function?

As the x-values go to positive infinity, the function's values go to negative infinity.
As the x-values go to zero, the function's values go to positive infinity.
As the x-values go to negative infinity, the function's values are equal to zero.
As the x-values go to positive infinity, the function's values go to positive infinity.

Answers

The statement which is true about the end behavior of the graphed function is third option that is as the x-values go to negative infinity, the function's values are equal to zero.

A coordinate plane is a two dimensional plane formed by the intersection of two number lines . One of these number lines is a horizontal number lines called the x-axis and the other number line is a vertical number line called the y-axis.

The exact answer is third option that is as the x-values go to negative infinity, the function's values are equal to zero.

Step by step explanation:

Minimum value (negative 1.25, negative 3.25)

Maximum value of (0.25, negative 1.75)

The x intercepts where the graph crosses the x axis.

Value of x when y=0 crosses x axis at (negative 2.25, 0)

The y intercept are where the graph crosses the y axis.

Value of y when x=0 crosses y axis at (0, negative 2)

The line exits the plane at (negative 2.75, 6) and (1.5, 6).

It can be seen from the coordinates that as the x-values go to negative infinity, the function's values are equal to zero, the coordinates of y approaches zero.

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Answer:

D

Step-by-step explanation:

Jon's bathtub is rectangular and its base is 16 ft2. How fast is the water level rising if Jon is filling the tub at a rate of 0.5 ft3/min

Answers

Jon is filling the tub at a rate of 0.5 ft3/min is 0.3125 ft/min.

If we take a look at a rectangular bathtub, the volume of the bathtub can be expressed as:

Volume (V) = length × breadth × height

where;

the base = length × breadth = 16ft²

∴ the volume of the rectangular bathtub = 16h ---  (1)

Using differentiation to differentiate 16h with respect to t implicitly, then:

dV/ dT = 16 dH /dT

When the rate of rising of the volume is 0.5 ft³/min

Then:

0.5 = 16 dH /dT

dH /dT = 1 / 16 * 0.5

dH /dT = 0.3125.

Jon is filling the tub at a rate of 0.5 ft3/min is 0.3125 ft/min.

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It is claimed that the mean age of bus drivers in chicago is 50. 2 years. If a hypothesis test is performed, how should you interpret a decision that rejects the null hypothesis?.

Answers

The result to reject the null hypothesis can be interpreted as follows,

There is sufficient evidence to disprove the claim μ = 50.2

What is a null hypothesis?

A statistical hypothesis known as a null hypothesis asserts that no statistical significance can be found in a collection of provided observations. Using sample data, hypothesis testing is performed to judge a theory' veracity. It is sometimes referred to as just "the null," and its symbol is H0.

To determine if a theory regarding markets, investing methods, or economies is correct or wrong, quantitative analysts perform a hypothesis testing and employ the null hypothesis, often known as the conjecture. Any variation between the selected attributes that you observe in a collection of data is thought to be the result of chance, according to the null hypothesis.

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Angelica Reardon received a 4-year non-subsidized student loan of $17,000 at an annual interest rate of 6.1%. What are Angelica's monthly loan payments for this loan after she graduates in 4 years? (Round your answer to the nearest cent.) $​

Answers

Answer:

$1503.08 per month

Step-by-step explanation:

someone please help me slove this its due tmrw somebody help, i will give brainlisest answer please​

Answers

Answer:

Question 5:

a) 65 degrees

b) 11

Question 6:

a) 15.6

b) 6.4

Question 7:

a) 10

b) 20

Question 8:

a) EF = 14.4

Question 9:

a) x = 6

b) y = 22.5

Step-by-step explanation:

An urn contains two red and three yellow balls. Two balls are selected randomly without replacement. What is the probability that both are yellow

Answers

The probability that both are yellow is 3/10.

Using the probability method, we get

P(y1 and y2) =  P(y1) P(y2|y1)

= 3/5 x 2/4

= 6 / 20

= 3 / 10

The probability that both are yellow is 3/10.

Probability is sincerely how in all likelihood something is to manifest. each time we're uncertain approximately the final results of an occasion, we will speak about the possibilities of sure effects—how probably they're. The analysis of activities ruled by using possibility is known as statistics.

A series of actions where the outcomes are continually unsure. The tossing of a coin, selecting a card from a deck of playing cards, throwing a dice. occasion. It is a single final result of an experiment.

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A 20-ft ladder leans against a building so that the angle between the ground and the ladder is 72 degrees. How high does the ladder reach on the building?

Answers

The height of the building is 19.02 feet, for a 20-ft ladder to lean against the building at an angle of 72 degrees.

What is an equation?

An equation is an expression that shows the relationship between two or more variables and numbers.

Trigonometric ratio is used to show the relationship between the sides and angles of a right angle triangle.

Let h represent the height of the building, hence:

sin(72) = h/20

h = 19.02 feet

The height of the building is 19.02 feet, for a 20-ft ladder to lean against the building at an angle of 72 degrees.

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The height reached by the ladder of height 20-ft. inclined at 72° is approximately 19.02-ft.

How can the height reached by the ladder be found?

Length of the ladder = 20 feet

Angle between the ground and ladder = 72°

Height reached by the ladder = Required

Solution:

From the definition of the sine of an angle, we have;

[tex]sin (\theta) = \mathbf{ \frac{opposite \: side}{hypotenuse}} [/tex]

The length of the ladder = The hypotenuse side = 20 ft.

The opposite side to the angle 72° = The height reached by the ladder

Which gives;

[tex]sin (72 ^ {\circ})= \frac{height \: reached}{20} [/tex]

Height = 20 × sin(72°) = 19.02

The height reached by the ladder on the building ≈ 19.02-ft.

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prime factorization of 90

Answers

The answer is: 2 • 3 • 3 • 5
2 times 3 times 3 times 5

Find the slope of the line on the graph.
Write your answer as a fraction or a whole
number, not a mixed number or decimal.

Answers

Answer is -3
Explain
Rise over run can be found two ways
(1) from the y intercept, count the rise (-6) over the x value (2), so -6/2 = -3
(2) you can chose the two points on the line and subtract y2 - y1 over x2 - x1
Points (2, -2) and (0, 4)
Subtract
2, -2
0, 4
_____
2, -6
Put y over x
-6/2 = -3
I did a print screen of this hope it helps

Answer:

-3

Step-by-step explanation:

Define two points on the line:

[tex]\textsf{let}\:(x_1,y_1)=(0,4)[/tex][tex]\textsf{let}\:(x_2,y_2)=(2,-2)[/tex]

Substitute the defined points into the slope formula and solve for m:

[tex]\begin{aligned} \textsf{slope}\:(m) & = \dfrac{y_2-y_1}{x_2-x_1}\\\\ \implies m & =\dfrac{-2-4}{2-0}\\\\ & =\dfrac{-6}{2}\\\\ & =-3\end{aligned}[/tex]

Therefore the slope of the given line is -3.

How long should the ladder be if they want to use all the cable they have? Use the law of sines to find the length

Answers

Answer:

Step-by-step explanation:

what would be 12% of 40

Answers

Hello,

Answer:

4,8

Step-by-step explanation:

what would be 12% of 40 ?

12% × 40 = 12/100 × 40 = 0,12 × 40 = 4,8

Help me asap find the area for each letter and find the surface area

Answers

Surface area of A = 50 square inches, S.A of B = 120 square inches, S.A of C = 60 square inches, S.A of D = 50 square inches, S.A of E = 60 square inches, S.A of F = 120 inches.

S.A of the box = 460 square inches.

What is a cuboid?

A cuboid is a three dimensional solid shape made of 6 rectangles.

Analysis:

surface area of A = surface area of D which is the smallest from the diagram = 5 x 10 = 50 square inches

surface area of C = surface area of E = the second largest = 5 x 12 = 60 square inches

surface area of B = surface area of F = 10 x 12 = 120 square inches

surface area of shape = 2( 50 + 60 = 120) = 2(230) = 460 square inches.

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Find the equation of the line that passes through (1,3) and is perpendicular to y = 1 − 2 x . Leave your answer in the form y = m x + c

Answers

Answer:

[tex]y = \frac{1}{2} x + \frac{5}{2} [/tex]

Step-by-step explanation:

Since the line with equation y = 1 - 2x has slope -2, we need to find the equation of the line with slope 1/2.

[tex]3 = \frac{1}{2} (1) + b[/tex]

[tex]3 = \frac{1}{2} + b[/tex]

[tex]b = \frac{5}{2} [/tex]

[tex]y = \frac{1}{2}x + \frac{5}{2} [/tex]

Jim has 10 used books and 12 used DVD's to sell at a garage sale for $1.50 and $5.00 each respectively.

Let x be the number of books and y be the number of DVD's Jim ends up selling.

Which of the following systems of linear inequalities represents this situation if Jim wants to make at least $40.00?

a.)
x ≥ 10
y ≥ 12
1.5x + 5y ≥ 40

b.)
x ≤ 10
y ≤ 12
1.5x + 5y ≥ 40

c.)
x ≥ 1.5
y ≥ 5
10x + 12y ≥ 40

d.)
x ≤ 1.5
y ≤ 5
10x + 12y ≥ 40

Answers

Answer:

The correct system of inequalities is b.

In the rhombus below, if NL = 7 and KM = 8 find JL.

Answers

Answer:

JL = 14

Step-by-step explanation:

N represents the center of the rhombus

Then

N is the midpoint of the diagonal (line segment) JL

Then

JL = 2 × NL

    = 2 × 7

    = 14

Which function is graphed below?

Answers

The graphed rational function is:

[tex]f(x)= \frac{6}{x + 2}[/tex]

Which function is graphed below?

Here we can see that we have a rational function of the form:

[tex]f(x) = \frac{q(x)}{p(x)}[/tex]

Now we notice two things, as x increases, we have a horizontal asymptote that tends to zero.

Then q(x) is a constant, let's say:

q(x) = k

We also can see that we have a vertical asymptote at x = -2, then:

p(x) = (x + 2)

So the rational function is:

[tex]f(x) = \frac{K}{x + 2}[/tex]

Now, notice that when x = 0, the curve intercepts the y-axis at y = 3, then if we evaluate the function in x = 0 we must get:

[tex]f(0) = 3 = \frac{K}{0 + 2} = \frac{K}{ 2} \\\\3*2 = K = 6[/tex]

Then the rational function is:

[tex]f(x)= \frac{6}{x + 2}[/tex]

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Sec6A - tan6A = 1+3tan2A.sec2A

Answers

sec ^6 A−tan ^6A=(1+tan ^2A−tan ^2 A)(1+tan ^4

A+2tan ^2 A+tan ^2 A+tan ^4 A+tan ^4 A)

sec ^6 A−tan ^6 A=1+3tan ^2 A+3tan ^4A

L.H.S. = R.H.S.

Hence proved

Step-by-step explanation:

♡´・ᴗ・`♡

Hi! having a bit of trouble with this one problem that I can't seem to solve correctly. This is an exponential and logarithmic equation problem, but I keep getting 1.74036... and apparently that isn't the answer. I'd appreciate the help!

Answers

The value of x from the given expression is 0.7558

Solving exponential equations

The standard exponential equation is expressed as y = ab^x

Given the equation below

10^x +5 = 60

Subtract 5 from both sides

10^x = 60 - 5

10^x = 55

Take the log of both sides

log10^x = log55

x = log55/log10

x = 0.7558

Hence the value of x from the given expression is 0.7558

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A model of a ship is built to scale of 1 cm:5 meters.The length of the model ship is 30 cm. What is the actual length of the ship?

Answers

Answer:

The actual length of the ship is 150 meters.

Step-by-step explanation:

The scale of the model is 1 cm:5 meters, which means that every 1 cm on the model represents 5 meters on the ship. Since the model ship is 30 cm long, that means it represents 150 meters on the real ship.

can someone please help me

Answers

Answer: A

Step-by-step explanation:

Answer:

A

I solved on paper it took me 45 mins

A moving company sells boxes for packing items. the large box has a volume of 6x^2+2x+3 cubic units. the medium box has a volume of 2x^2-5 cubic units. a customer purchases two large boxes and one medium box. what is the total volume of the purchased boxes?

Answers

The total volume of the purchased boxes is 14x^2+4x+1

Sum of polynomials

Given the following parameters

Volume of a large box = 6x^2+2x+3 cubic units

Volume of medium = 2x^2-5 cubic units.

If a customer purchases two large boxes and one medium box, the total volume is expressed as:

Total volume = 2(6x^2+2x+3) +  2x^2-5

Expand

Total volume = 12x^2+4x+6+2x^2-5

Total volume = 14x^2+4x+1

Hence the total volume of the purchased boxes is 14x^2+4x+1

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look at image.........

Answers

Answer:

first of all its not d since the y intercept is negitive

then its not b since its sloping down

so the slop is either 7/5 or 5/7

since rise/run it has to be 7/5

Hope This Helps!!!

A bag contains 75 marbles some red some blue the ratio of red marbles to blue marbles is 3 to 2 how many red marbles are there

Answers

The correct answer is 45

Answer: 45 red marbles

Step-by-step explanation:

Using the ratios, we can create a fraction for the number of marbles.

3/5 of the bag would be red marbles, and 2/5 of the bag would be blue marbles.

(you get the 5 from adding 3+2 together)

If you take 3/5 of 75, you would get 45 red marbles.

4. Verbal
Explain how to find a line parallel to a linear function that passes through a given point.

Answers

Answer:

The required line can be found by substituting the slope and the given point in the slope intercept form of a line and is given by y=mx+c, where m is the slope and c is the y intercept.

Step-by-step explanation:

In the given question, it is given that a linear function passes through a given point.It is required to find a line parallel to the function.When two functions are parallel, their slopes are equal.Thus, substitute the slope and the given point in the slope intercept form of a line and is given by y=mx+c, where m is the slope and c is the y intercept.

The equation of a parallel line to a linear function that passes through a point can be explained using the examples below.

We have,

The parallel line to a linear function that passes through a point can be explained using the examples below.

Example:

Let's find a line parallel to the linear function y = 3x - 2 that passes through the point (2, 5).

Step 1: Given linear function and point

Linear function: y = 3x - 2

Point: (2, 5)

Step 2: Determine the slope of the given linear function

The slope (m) of the given function y = 3x - 2 is 3.

Step 3: Use the slope to find the equation of the parallel line

Since the parallel line has the same slope (3), its equation will be

y = 3x + b, where "b" is the y-intercept that we need to find.

Step 4: Substitute the coordinates of the given point into the equation of the parallel line

Using the coordinates (2, 5) of the given point, we can solve for "b":

5 = 3(2) + b

5 = 6 + b

b = 5 - 6

b = -1

So, the equation of the line parallel to y = 3x - 2 and passing through the point (2, 5) is:

y = 3x - 1.

Thus,

The equation of a parallel line to a linear function that passes through a point can be explained using the examples above.

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47. A car travels at a constant speed of 50 miles per hour.
The distance the car travels in miles is a function of
time, t, in hours given by d(t) = 50t. Find the inverse
function by expressing the time of travel in terms of
the distance traveled. Call this function t(d). Find
t(180) and interpret its meaning.

Answers

Answer:

The inverse of the given function is [tex]$t(d)=\frac{d}{50}$[/tex]. The time taken to travel 180 miles is 3.6 hours.

Step-by-step explanation:

It is given that a car travels at a constant speed of 50 miles per hour. A function for distance traveled is also given as d(t)=50t.

It is required to find the inverse of the function by expressing the time travel in terms of distance traveled and also find t(180).

To find the inverse, express time traveled in terms of distance traveled using normal algebraic methods and then substitute 180 for t and explain its results.

Step 1 of 2

The given function is d(t)=50t.

Consider d(t) as d and t as t(d) and rewrite the equation.

The rewritten function is d=50 t(d)

Divide by 50 on both sides of the equation.

[tex]$$\begin{aligned}&d=50 t(d) \\&\frac{d}{50}=\frac{50 t(d)}{50} \\&t(d)=\frac{d}{50}\end{aligned}$$[/tex]

Step 2 of 2

Substitute 180 for $t$ in the simplified expression and interpret the results.

[tex]$$\begin{aligned}&t(d)=\frac{d}{50} \\&t(d)=\frac{180}{50} \\&t(d)=3.6\end{aligned}$$[/tex]

The time taken to travel 180 miles is 3.6 hours.

f is an even function. a = A 2-column table with 4 rows. Column 1 is labeled x with entries negative 2, 0, 2, 3. Column 2 is labeled f (x) with entries 4, 5, a, 7. g is an odd function b = A 2-column table with 4 rows. Column 1 is labeled x with entries negative 2, 0, 2, 3. Column 2 is labeled f (x) with entries b, 0, negative 3, negative 4.

Answers

The values of a and b are 4 and -3

How to solve for (a) and (b)?

To solve for a, we make use of the function f(x).

x    f(x)

2     4

0     5

2     a

3     7

Remove the x values 0 and 3

x    f(x)

2     4

2     a

The above table implies that:

f(2) = 4 and f(2) = a

Substitute 4 for f(2) in f(2) = a

4 = a

Rewrite as:

a = 4

To solve for b, we make use of the function g(x).

x    g(x)

2     b

0     0

2     -3

3     -4

Remove the x values 0 and 3

x    g(x)

2     b

2     -3

The above table implies that:

f(2) = b and f(2) = -3

Substitute -3 for f(2) in f(2) = b

-3 = b

Rewrite as:

b = -3

Hence, the values of a and b are 4 and -3

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Complete question

Use the Symmetry of a Function to Find Coordinates

f is an even function             g is an odd function

x    f(x)                                        x             g(x)

2     4                                          2              b

0     5                                          0              0

2     a                                          2              -3

3     7                                          3              -4

Find a and b

Answer:

4, 3

Step-by-step explanation:

Tara makes donut topping by mixing sugar and 12 g of cinnamon. The tape diagram shows the ratio of sugar to
cinnamon.
Complete the table.

Answers

Here is the completed table:

                        Original  Ratio   Amount (g)

Sugar                       3                           18

Cinnamon                2                           12

Total topping          5                             30

How should the table be filled?

Original ratio of Cinnamon = total topping - original ratio of sugar

5 - 3  = 2

Amount of Sugar = (12 x 3) / 2 =18g

Total toppings = 18 + 12 = 30g

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Solve for Y

V = −4y + 4x

Answers

Answer:

Y=−4y/v +4x/v

Step-by-step explanation:

Divide each term in by v and simplify.


If
1 ƒ (x) = 3x + 5/x, what is f(a + 2)?

Answers

Answer: [tex]3a+6+\frac{5}[a+2}[/tex]

Step-by-step explanation:

[tex]f(a+2)=3(a+2)+\frac{5}{a+2}=3a+6+\frac{5}[a+2}[/tex]

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