A group of cubes are arranged in a pattern with the same number of cubes in each row and column. There are 225
cubes in the shape. How many cubes are in one row?
A)
15
B)
25
0
56
D)
75

Answers

Answer 1

Given:

Total number of cubes = 225

Cubes are arranged in a pattern with the same number of cubes in each row and column.

To find:

The number of cubes in a row.

Solution:

Let the number of cubes in a row be x.

Since, cubes are arranged in a pattern with the same number of cubes in each row and column, therefore number of cubes in rows and columns are equal.

[tex]\text{Total cubes}=x\times x[/tex]

[tex]\text{Total cubes}=x^2[/tex]

Total number of cubes = 225

[tex]x^2=225[/tex]

Taking square root on both sides.

[tex]x=\sqrt{225}[/tex]

[tex]x=15[/tex]

So, the number of cubes in a row is 15.

Therefore, the correct option is A.


Related Questions


Marcus is considering two car rental plans. Plan A can be modeled with the equation C=30d, and Plan B can be modeled with the equation C=25d + 15, where C represents the cost in dollars and d represents the number of days a car is rented. Which statement would justily selecting Plan B instead of Plan A
A.Marcus rent a car for 1 day
B.Marcus rent a car for 2 days
C.Marcus rent a car for 3 days
D.Marcus rent a car for 5 days

Answers

Answer:

D. Marcus rent a car for 5 days

Step-by-step explanation:

You can solve this by simply plugging the answer choices into the variable d for both equations and comparing the total costs.

When you plug in 5 days you get:

Plan A

C = 30 x 5

C = 150

Plan B

C = 25 x 5 + 15

C = 140

The cost is less for Plan B in this case, so it is better to use Plan B when renting for 5 days.

Which integer represents 8ºC below 0?

Answers

8ºC below 0 is -8ºC (negative eight degrees celsius).

Below means subtract. 0 - 8 = -8.

What is the slope of the graph

Answers

Answer:

1/3

Step-by-step explanation:

The slope increases by 1/3.

The slope formula is y2-y1/x2-x1.

When you plug in the points and simplify, you get 1/3.

Consider the line y = 4x-3.
Find the equation of the line that is perpendicular to this line and passes through the point (3, -3).
Find the equation of the line that is parallel to this line and passes through the point (3, -3).

Answers

Answer:

perpendicular line: y = -[tex]\frac{1}{4}[/tex]x - [tex]\frac{9}{4}[/tex]

parallel line: y = 4x - 15

Step-by-step explanation:

Perpendicular line:

A perpendicular line to y = 4x-3 would have a slope that is the negative reciprocal (flip the fraction and add a negative sign). The negative reciprocal of 4 is - [tex]\frac{1}{4}[/tex].

Now that we have our slope, we can plug the given point of (3, -3) into the slope-intercept equation to find b.

-3 = - [tex]\frac{1}{4}[/tex](3) + b

-3 = - [tex]\frac{3}{4}[/tex] + b

Add [tex]\frac{3}{4}[/tex] to each side of the equation to isolate b.

-[tex]\frac{9}{4}[/tex] = b

Now we can write our equation, y = -[tex]\frac{1}{4}[/tex]x - [tex]\frac{9}{4}[/tex]

Parallel Line:

A parallel line to y = 4x-3 has the same slope. To find the equation, plug the slope and given point (3, -3) into the slope intercept equation and solve for b.

-3 = 4(3) + b

-15 = b

Now you can write the equation, y= 4x -15

Y=-1/4 I believe this is the correct answer....

Find the slope of the line that passes through (1,3) and (8,9)​

Answers

Answer: 6/7 is the slope

Step-by-step explanation: 9-3/8-1

y2-y1/X2-X1  

will give brainliest!!

Paula has a special puzzle in which all the pieces fit together in any way. There is no goal picture. Instead, the goal of the puzzle is to make different patterns and pictures using the pieces. If Paula has 35 unique puzzle pieces and she plans to use all of them, how many possible pictures can she create?

Answers

Answer:

Sure this is a question from probability

Possible 2^n can be use

2^35 =3.432597387 × 10^10

Step-by-step explanation:

I'm not sure

Paula can create number of possible ways of pictures are 35!.

What is a permutation?

A permutation is defined as a mathematical process which determines the number of different arrangements in a set of objects when the order of the sequential arrangements.

Given that Paula has 35 unique puzzle pieces

So, the method of organizing possible pictures can she create dependent on each other to succeed.

There is an arrangement process

It is equal to the permutation of 35 numbers

⇒ ³⁵P₃₅

The formula of ⁿPₓ = n!/(n-x)!

⇒ 35!/(35-35)!

⇒ 35!/0!           [∵ 0! = 1]

35!

Hence, Paula can create number of possible ways of pictures are 35!.

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Notebooks are originally on sale for $2.00. This school year they were marked up by 15%. What's
the new price for notebooks?

Answers

Answer:

the new notebook price is

Step-by-step explanation:

10% of $2.00 is 20 cents. 5% is 10 cents. 20+10= 30. 30 cents. $2.00+30 = $2.30

Which statements apply to the ratio of rice and water? Choose two options.

The amount of rice is the dependent value.
The amount of water is the dependent value.
The amount of rice is the independent value.
The amount of water is the independent value.
The values cannot be labeled as dependent or independent without a given equation.

Answers

Answer:

3 and 4 or C and D

Step-by-step explanation:

The independent value is the quantity of rice. The dependent value is the volume of water. B and C are the appropriate choices.

What is a ratio?

An ordered pair of numbers a and b, expressed as a / b, is a ratio if b is not equal to 0. An equation that balances two ratios is known as a percentage. The numerical relationship between the two numbers illustrates how frequently one value contains or is contained within another.

Regarding the ratio of rice to water, the adages "The amount of rice is the independent value" and "The amount of water is the dependent value" are applicable.

The amount of rice is the independent value because it is the value that is being varied or controlled in the ratio. The amount of water is the dependent value because it depends on the amount of rice used in the ratio.

Therefore, the correct options are:

The independent value is the quantity of rice.

The dependent value is the volume of water.

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Estimate.Show how you estimated

219÷2=

can you guys plz help me I need to find the estimate.

Answers

Answer:

110

Step-by-step explanation:

219 divided by 2 equals 109.5, so you basically just round to the nearest whole number. You should get 110, thus, your answer. Of course, you could just leave it as 109.5, but if you want it estimated, or simplified, the information above should help.

Hope this helps!

Simplify the following expression: c + 3c

Answers

Answer:

4c

Step-by-step explanation:

1c+3c = 4c

4c. since they are alike terms u can think of c as 1c so 1c+3c = 4c

Consider the system of equations.

y = -2x + 1

3x - 2y = 5

Solve the system of equations algebraically. Show your work.











help quick Im being timed

Answers

Answer:

Point form:

(1, -1)

Equation form:

x=1, y=-1

Step-by-step explanation:

I hope the work wasnt part of the assignment cause i really have trouble showing mine.

Which of the following is true of an outlier?

An outlier is a false data point.
An outlier does not affect measures of central tendency.
An outlier is always the highest or lowest value in a data set.
An outlier is not near the main cluster of data.

Answers

The last one is the best answer choice

An outlier is not near the main cluster of data

little tip to help you remember is that the name is outlier and out means out and outliers are always out of the main cluster of data

the question is in the image below.

Answers

Answer:455.5

Step-by-step explanation:

For values of h very close to 0, which function best approximates (tan(x+5)-tan x) / h

Answers

Answer:

[tex]sec^2(x)[/tex]

Step-by-step explanation:

This just means, what is the derivative of tan(x)

The function that best approximates the given situation is sec²x.

We have to find

[tex]\lim_{h \to\00} \frac{tan(x+h)-tan x}{h}[/tex]

Since the given expression reduces to 0/0 form when we apply the limits

So, let us apply the L'hospital rule

What is the L'hospital rule to find a limit?

L'Hospital's Rule tells us that if we have an indeterminate form 0/0 or ∞/∞ all we need to do is differentiate the numerator and differentiate the denominator and then take the limit.

So, after differentiating the numerator as well as the denominator of the given expression with respect to h we get

[tex]\lim_{h \to\00} \frac{sec^2(x+h)-0}{1}[/tex]

[tex]= lim_{h \to\00} \frac{sec^2(x+0)}{1}\\\\= sec^2x[/tex]

Therefore, the function that best approximates the given situation is sec²x.

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For a party, the family bought 24 pizzas for $12.50 each and 36 bottles of soda for $1.20 each. How much did the family spend on pizza? Fill in the blank with the numerical answer only. The family spent $_______ on pizza.


For a party, the family bought 24 pizzas for $12.50 each and 36 bottles of soda for $1.20 each. How much did the family spend on soda? Fill in the blank with the numerical answer only. The family spent $_______ on soda.


For a party, the family bought 24 pizzas for $12.50 each and 36 bottles of soda for $1.20 each. How much did the family spend in all? Fill in the blank with the numerical answer only. The family spent $_______ in all. *


PLZ PLZ PLZ HELP I WILL GIVE BRAINLIEST PLZ HELP AND READ ALL QUESTIONS REMEMBER GOD IS GOOD.

Answers

Answer:

1) The amount the family spent on pizza is $300

2) The amount the family spent on soda is $43.2

3) The amount the family spent in all is $343.2

Step-by-step explanation:

The number of pizzas bought by the family = 24

The price of each pizza = $12.50

The number of bottles of soda the family bought = 36

The price of each bottles of soda = $1.20

1) The amount the family spent on pizza = 24 × $12.50 = $300

2) The amount the family spent on soda = 36 × $1.20 = $43.2

3) The amount the family spent in all = The amount the family spent on pizza + The amount the family spent on soda

∴ The amount the family spent on soda = $300 +$43.2 = $343.2.

Write an equation of the line graphed below in slope-intercept form.​

Answers

The equation of the line is y = (2/3)x -1

What is a slope?

In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction.

From the given graph, we have two points (0, 1) and (3,3)

If a line passes through two points (x₁ ,y₁) and (x₂, y₂) ,

then the equation of line is

y - y₁ = (y₂- y₁) / (x₂ - x₁) x (x - x₁)

y - 1= (3 -1 ) / (3 -0) x (x -0)

y = (2/3)x -1

The equation of the line is;

y = (2/3)x -1   {equation 1}

Slope intercept form of a line is

y = mx + b          {equation 2}        ,

where m is the slope and b is the y-intercept.

On comparing the equation (1) and (2) we get

It means,

Slope = 2/3

y-intercept = -1

Therefore, the equation of the line is y = (2/3)x -1

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Which second degree polynomial function f(x) has a lead coefficient of 3 and roots 4 and 1?

Answers

Answer:

any options that were given to you?

Answer:

its D

Step-by-step explanation:

D on edge 2020

How many 1/3 pound servings are in 4 2/3 pounds of cheese?

Answers

Answer:

14 Serving

Step-by-step explanation:

If you multiply 1/3 14 times.

they're 13 1/3 pound servings in 4 2/3 pounds of cheese

Here is a set of signed numbers: 7, -3, 1,-0.8,0.8. - 1,-2 Order the numbers from least to greatest.​

Answers

Answer:

-3,-2,-1,-0.8,0.8,1,7

Step-by-step explanation:

brainliest please

Answer:

-3, -2, -0.8, 0.8, 1, 1, 7

Step-by-step explanation:

negatives first then positive

Please help,thank you

Answers

Answer:

No, It is not a function!

Step-by-step explanation:

Giving brainless and points. Don’t comment if u don’t know the answer.

Answers

Answer:

B and D

Step-by-step explanation:

1/8 = 12.5%

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

Answer:

1:no 2:yes 3:no 4:yes 5:no.

Step-by-step explanation:

The first one is not equivlent the second one is equivlent and third one is not equivlent the forth one is equivlent and the fifth one is not equivlent.

Which equation combines with the given equation solution x = 3 and y = 9? X + 2y = 21 A. 4x + 6y = 64 B. 2x + y = 36 C. 4x + y = 21 D. -3x + 4y = 33 E. 3x + 2y = 28

Answers

Answer:

C. 4x + y = 21

Step-by-step explanation:

X + 2y = 21

A. 4x + 6y = 64

B. 2x + y = 36

C. 4x + y = 21

D. -3x + 4y = 33

E. 3x + 2y = 28

x = 3

y = 9

X + 2y = 21

3 + 2(9) = 21

3 + 18 = 21

21 = 21

A. 4x + 6y = 64

4(3) + 6(9) = 64

12 + 54 = 64

66 is not = 64

B. 2x + y = 36

2(3) + 9 = 36

6 + 9 = 36

15 is not = 36

C. 4x + y = 21

4(3) + 9 = 21

12 + 9 = 21

21 = 21

point slope form of (1, 0) and (6, -3)

Answers

Answer:

Step-by-step explanation:

1 is x and 0 is y while 6 is x and -3 is y and 6,-3 is the 2nd graph

Please Help Me!!!
I will give brainliest!!!

Answers

Answer ; Its answer is 325.

   

Answer:

I believe is b. and d.

Step-by-step explanation:

2/5 * x = 4

x = 4 : 2/5

1 bag is 2/5 kg.

The customer wants to buy 4 kg. So you need to multiply the single bag for a number that will give you 4 in total.

Here is an example with whole numbers, 8nstead of fraction. if the bag was 2 kg, and you want a total of 4kg. You need to multiply that 2 by a number x to get to your total 4. so you will have 2 * x = 4

That’s why you have 2/5 * x = 4

to isolate x, you need to devide both side by 2/5.

2/5 * x = 4

: 2/5        : 2/5     (Divide both sides by 2/5)

x = 4 : 2/5            

What is the factored form of this expression?
8x^3 - 8x^2 - 30x=

Answers

The answer is 2x(2x-5)(2x+3)

20 POINTS HELP NOW PLEASE

Answers

Answer:

The relation is a FUNCTION

Step-by-step explanation:

as you can see the value of domain or the x there's no repeating number at all.

Answer:

Not a function

Step-by-step explanation:

(0,3),(3,5) and (0,3),(-6,-2) hit (3,5),(-2,6)

can someone please help will give brainliest.​

Answers

Answer:

b

Step-by-step explanation:

B I’m pretty sure I don’t tho

3base and 7 power answers​

Answers

Answer:

2187

Step-by-step explanation:

Multiply 3 seven times in your calcultor to check this answer or look it up on google

Tony hit 9 out of 15 pitches at baseball practice yesterday. What percentage of the pitches did Tony NOT hit?

Answers

Answer:

5%

Step-by-step explanation:

Answer:

40%

Step-by-step explanation:

using the box method,

multiply 9 × 100

= 900 and divide 900 by 15

900 ÷ 15 = 60%

60% is the amount of pitches he hit

100% - 60% = 40%

he missed 40%

One restaurant sells a large cheese pizza for $8.25 and charges $1.25 per topping added. Another place charges $9.00 for a large cheese pizza and $1.00 per additional topping. If you buy a pizza from each place, both with the same number of toppings, how many toppings need to be put on each one for the pizzas to cost the same amount?

Answers

Answer:

3

Step-by-step explanation:

You take 8.25+1.25 and get 9.5. Then you add 9.5 and add it again, until you get a whole number. Then 9+3 is also 12 so, you answer is 3 toppings.

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