A cube has a volume of 2197m3. Its surface is to be painted. Each can of paint covers about 40m2. How many cans of paint are needed? justify your answer.

Answer:

Step-by-step explanation:

Equation for the volume and solution:

Correct option is D.

Answer:

D. StartFraction 7 over 8 EndFraction x minus 8 = 216; x = 256 centimeters cubed

Answer:

yes your math seems about right but wait for someone else to respond also because im not completely sure

Step-by-step explanation:

Answer:

45/10, 4 3/5, 19/4

Step-by-step explanation:

19/4 = 4.75

45/10 = 4.5

4 3/5 = 23/5 = 4.6

4.75 > 4.6 > 4.5

Best of Luck!

Answer:

19/4, 4 3/5, 45/10

Step-by-step explanation:

first you have to divide the fractions TIBO (top in bottom out)

then once you divide them you should get

4 1/2 or 4 5/10 (45/10)

4 3/5 and

4 3/4 (19/4)

since 3/4 is more than half and 3/5 is more than half (2.5 is half of five) but is less than 3/4 is should be 19/4, 4 3/5, 45/10

PLEASE tell me if this is any shape or form helpful to you :)

if not i'm sorry :(

Given the triangle;

The perimeter of a shape is the sum of the sides or outer parts of the shape.

Thus, the perimeter of the triangle is;

Then, we simplify further by collect like terms, we have;

To find the open intervals on which the function f(x) = x^(104−x) is increasing or decreasing, we need to analyze the derivative of the function.

Let's start by finding the derivative f'(x) using the power rule and the chain rule:

f(x) = x^(104−x)

f'(x) = (104−x)x^(104−x−1) - x^(104−x)ln(x)

Now, to determine the intervals of increasing and decreasing, we need to find the critical points of the function. These occur where the derivative is either zero or undefined.

Setting f'(x) = 0, we have:

(104−x)x^(104−x−1) - x^(104−x)ln(x) = 0

Simplifying this equation is challenging, so we can use numerical methods or graphing software to estimate the critical points.

Using a numerical approach, we can use the bisection method or other root-finding algorithms to find approximate values for the critical points.

Let's assume we find two critical points, x = a and x = b, where a < b.

Now, we can test the intervals between these critical points and beyond them to determine if the function is increasing or decreasing.

For x < a:

We can choose a value, c, such that x < c < a.

Evaluate f'(c). If f'(c) > 0, then the function is increasing on this interval. Otherwise, it is decreasing.

For a < x < b:

Choose a value, c, such that a < c < b.

Evaluate f'(c). If f'(c) > 0, then the function is increasing on this interval. Otherwise, it is decreasing.

For x > b:

Choose a value, c, such that b < c < x.

Evaluate f'(c). If f'(c) > 0, then the function is increasing on this interval. Otherwise, it is decreasing.

Please note that without the specific values of the critical points, it is not possible to determine the exact intervals of increasing and decreasing. However, by following the steps outlined above and using the values of a and b, you can determine the open intervals on which the function f(x) = x^(104−x) is increasing or decreasing.

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Answer:

$8500

Step-by-step explanation:

I = Prt

P = I / rt

= 828.75 / 1.5 x 0.065

= 828.75 / 0.0975

= $8500

Answer:

hello there buddy

Your answer is

I = Prt P = I / rt= 828.75 / 1.5 x 0.065= 828.75 / 0.0975= $8500

Hope it’s helps you Buddy

Step-by-step explanation:

~AwesomeJayden

Step-by-step explanation:

\( \because \sqrt{18} = 4.24264069 \\ \\ \therefore \: 4 < 4.24264069 < 5 \\ \\ \therefore \: 4 < \sqrt{18} < 5 \\ \\ \sqrt{18} \: fall \: between \: 4 \: and \: 5 \\ \\ \because \sqrt{18} = 4.24264069 \approx \: 4 \\ \\ \therefore \: 4 \: is \: closer \: to \: \sqrt{18} \)

The total surface area​ of a cylinder are 1187.35 cm sq.

Suppose that the radius of considered right circular cylinder be 'r' units.

And let its height be 'h' units.

Then, its volume is given as:

\(V = \pi r^2 h \: \rm unit^3\)

We are given the curved surface area and volume of a cylinder are 880 CM^2 and 3080 cm^3 respectively.

A = 880

V = 3080

Curved surface area of cylinder = 2πrh

880 = 2π x r x h

rh = 880/ 2π

Volume of cylinder = πr x r x h

3080 =  πr x r x h

rh =   3080 / πr

Substitue the values;

880/ 2π = 3080 / πr

440/π = 3080 / πr

r  = 3080 / 440

r = 7

Now, rh = 880/ 2π

h = 20.01

The total  surface area​ = 2πr(r + h)

= 2π x  7(7 + 20.01)

= 1187.35 cm sq.

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Answer:

126

Step-by-step explanation:

The area of the top triangle is (6)(6)/2 = 18 square meters.

The area of the bottom rectangle is (9)(12)=108 square meters.

Adding these, we get the total area to be 126 square meters.

Answer: 8

Step-by-step explanation:

The 4 times of the number 8 results to 32.

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values. In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

32 is 4 times as much as what number

let the number be x.

So, 4 times of x = 32

4x = 32

Divide both side by 4.

4x/4 = 32/4

x= 8

Hence, the 4 times of the number 8 results to 32.

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To determine if the matrix is invertible, we can calculate its determinant. The determinant of a 2x2 matrix [a b; c d] is given by ad-bc. Applying this formula to the given matrix, we get (9*(-5)) - (3*(-15)) = 0.

Therefore, the determinant is zero. This means that the matrix is not invertible, as a matrix is invertible if and only if its determinant is not zero.

Thus, the correct answer is A. We didn't need to find the pivot positions or check if the columns are linearly dependent, as the determinant alone is enough to determine invertibility.

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The total time to be invested to get a degree would be 630 hours

Total credits required = 180 credits

Number weeks In a quarter = 10 weeks

Number of credit earned per hour = 1 credit

To earn a degree :

Number of credits required per week :

180 / 10 = 18 credits per week

Since, credit is earned at a rate of 1 per hour ; then ;

Number of class hours per week = 18 hours per week.

This means 180 class hours is required.

For every class hour ; 2.5 hours is used for outside class study

Hence, Total outside class study hours will be :

(2.5 hours × 180 hours) = 450 hours

Therefore,

Total hours that would be invested :

(total outside class hours + tt’otal class hours)

(450 + 180) = 630 hours

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Answer:

$0.41

Step-by-step explanation:

dozen means 12.

simply divide $4.92 by 12.

PLEASE MARK ME AS BRAINLIEST !!!

$0.41

Answer:

i need points rq thanks so much

Step-by-step explanation:

imma go waste these points now

Answer:

x

Step-by-step explanation:

To get the maximum profit, Kate should display as many cards from company B as possible, since she makes a higher profit from those cards.

Let x be the number of cards from company A and y be the number of cards from company B.

The constraints are:

The objective function is:

  P = 0.30x + 0.32y (the profit from selling the cards)

To maximize the profit, we need to maximize the value of y. Since the display rack can hold up to 90 cards, we can set y = 90 - x.

Substituting this into the objective function:

  P = 0.30x + 0.32(90 - x)
P = 0.30x + 28.8 - 0.32x
P = -0.02x + 28.8

To maximize P, we need to minimize x. Since x must be at least 40, we can set x = 40.

Substituting this back into the objective function:
P = -0.02(40) + 28.8
P = 28

So the maximum profit Kate can make is $28, by displaying 40 cards from company A and 50 cards from company B.

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Answer:

10%

Step-by-step explanation:

Answer:

cashier

Step-by-step explanation:

the discount is $7.50

The solutions to the equation 3x^2 - 9x - 12 = 0 are x = 4 and x = -1.

To solve the quadratic equation 3x^2 - 9x - 12 = 0, we can use the quadratic formula:

x = (-b ± √(b^2 - 4ac)) / (2a),

where a, b, and c are the coefficients of the quadratic equation.

In this case, a = 3, b = -9, and c = -12. Substituting these values into the quadratic formula, we have:

x = (-(-9) ± √((-9)^2 - 4 * 3 * (-12))) / (2 * 3)

= (9 ± √(81 + 144)) / 6

= (9 ± √(225)) / 6

= (9 ± 15) / 6.

We have two possible solutions:

For the positive root:

x = (9 + 15) / 6

= 24 / 6

= 4.

For the negative root:

x = (9 - 15) / 6

= -6 / 6

= -1.

The solutions to the equation 3x^2 - 9x - 12 = 0 are x = 4 and x = -1.

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To find the number of ways to get from point A to point B on a system of roads without visiting any of the 9 intersections more than once, we can use the concept of permutations.

Let's assume that there are n intersections between points A and B. In this case, there are (n+1) possible locations where you can start, including A and the n intersections. To calculate the number of ways, we can start at any of these (n+1) locations and then choose a different intersection at each step until we reach point B.  At the first intersection, we have n options to choose from. At the second intersection, we have (n-1) options, and so on, until we reach the last intersection before point B, where we have 1 option remaining.

To find the total number of ways, we can multiply the number of options at each step Total number of ways = n * (n-1) * (n-2) * ... * 1 = n! For example, if there are 9 intersections between A and B, there are 10 possible locations to start. The total number of ways would be 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 = 362,880 ways to get from A to B without visiting any of the intersections more than once. In summary, the number of ways to get from A to B without visiting any of the 9 intersections more than once is 362,880.

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The question relates to Eulerian Path in graph theory that visits every edge (or intersection) exactly once in a network (or road system). A definitive answer depends on the layout and connections between intersections.

The number of ways to get from point A to point B without visiting any of the 9 intersections more than once is a problem related to graph theory in Mathematics. Graph theory studies paths, routes, and networks, and has a broad range of applications from road design to computer network architecture.

The problem you're asking about is often referred to as the Eulerian Path problem, named after the mathematician Leonhard Euler. An Eulerian Path is a path in a graph (or city road network) that visits every edge (or intersection) exactly once.

However, to give a definite answer, one would need a clearer picture of the situation, that is, how the intersections are laid out and connected. If all intersections are connected in such a way that you can form a continuous path without any isolation, then multiple solutions may exist.

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Answer:

the answer is correct

Step-by-step explanation:

hope u like

For a confidence interval, she would use her sample mean, hence the mean of 6.7 pounds.

In the context of this problem, we use the t-distribution instead of the z-distribution, as we have the standard deviation for her sample.

The bounds of the confidence interval are given according to the following rule:

\(\overline{x} \pm t\frac{s}{\sqrt{n}}\)

In which the parameters are defined as follows:

From the first bullet point, we get that she should use her sample mean for the calculation of the confidence interval, that is, the mean of 6.7 pounds should be used.

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Answer:

330.

Step-by-step explanation:

Count all the way up. The first row is 20, then goes, 22,24,26,28,30,32,34,36,38,40. These are the number of seats for all 12 rows, since we added 2 each row. Add them all together including 20 to get 330 seats. The whole auditorium has 330 seats.

Hope this helps!

As per arithmetic Progression, there are 372 seats in the given auditorium.

"Arithmetic Progression is a sequence of numbers in order, in which the difference between any two consecutive numbers is a constant value."

Given, the auditorium has 20 seats in the first row.

Then, each successive row contains 2.

We can assume it as an arithmetic progression.

Here, the first term(a) is 20.

The common difference(d) is 2.

Total number of terms(n) is 12.

Therefore, the sum of all the terms is

\(= \frac{n}{2}[2a + (n-1)d]\\= \frac{12}{2}[2(20) + (12-1)2]\\= 6[40+(11)2)]\\= 6(40+22)\\= 6(62)\\= 372\)

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Answer:

Step-by-step explanation:

The first one :

3/10 + 4/14 = 3.7/10.7 + 4.5/14.5 = 21/70 + 20/70 = (21+20)/70 = 41/70

The first step is, to make the 2 denominators of the 2 fractions to be the LCM.

10 = 2.5
14 = 2.7
So, the LCM of these 2 will be 2.5.7 = 70

In 3/10, we multiply both the nominator and the denominator by 7 to make the denominator 70.

And in 4/14, we multiply both the nominator and the denominator by 5 to make the denominator 70

And so we have : 21/70 + 20/70
Add the nominators together, the denominator stay the same, we'll have 41/70.


The second one : 5/12 = 6/13 = 5.13/12.13 - 6.12/13.12 = 65/156 - 72/156 = (65-72)/156 = -7/156

So, we find the LCM of 12 and 13 again. And since 13 is a prime number and 12 is not a factor of 13, the LCM will be 12x13=156

Multiply both the nominator and the denominator of 5/12 by 13, and 6/13 by 12, we'll get 65/156 and 72/156

Subtract the nominators, the denominator stay the same, we get -7/156.

Answer:

The answer is 460 I got it right on my test

Step-by-step

Answer:

Rounded, 22 yards.

Step-by-step explanation:

The pythagorean theorem states: a^2 + b^2 = c^2

a = 34, squared = 1156

b = 41, squared = 1681

Add those to get 2837.

√2837 = 53.26, rounded.

34 + 41 = 75

75 - 53 = 22

22 yards is your answer.

Answer:

Step-by-step explanation:

i Hope it's helpful for you

Answer: Let's assume the cost of 1 kilogram of bananas is represented by 'x'.

According to the given information, 4.5 kg of bananas and 3.5 kg of apples together cost £6.75. We also know that the cost of 1 kg of apples is £5.40.

Using this information, we can set up the following equation:

4.5x + 3.5(£5.40) = £6.75

Now let's solve for 'x':

4.5x + 3.5(£5.40) = £6.75

4.5x + £18.90 = £6.75

4.5x = £6.75 - £18.90

4.5x = -£12.15

x = (-£12.15) / 4.5

x ≈ -£2.70

The cost of 1 kilogram of bananas, based on this calculation, is approximately -£2.70. However, it's important to note that a negative cost doesn't make sense in this context. It's possible there may be an error in the given information or the setup of the equation.

The best solution for the given equation is x=4

What are logarithmic functions?

The inverse function to exponentiation in mathematics is called the logarithm. Accordingly, the exponent to which b must be raised in order to obtain a number x is determined by its logarithm to the base b.

Use Property:

logb(xy)=logbx+logby and logby = x ⇔ x^b = y

log2(x(x−2))=3
2^3 =x^2 −2x
8=x^2−2x
0=x^2−2x−8
0=(x−4)(x+2)
x−4=0
or
x+2=0
x=4
or
x=−2
Hence, x=4

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Answer: X=16

Step-by-step explanation:

trust,, also good luck to plato 2b algebra people

Time=12min

She swim in one hour=

\(\\ \sf\longmapsto 5(1/4)\)

\(\\ \sf\longmapsto 5/4\)

\(\\ \sf\longmapsto 1.2mi\)

Answer:

-------------------------------

A swimmer swims a quarter of a mile in 12 minutes.

Cross- product: