An artist has a total of 80 paintbrushes, 22 of them are flat brushes, used
for blending. What percent of the artists' paintbrushes areflat brushes?

According to Siegler, the pattern of learning math concepts involves a gradual development and refinement of strategies. Siegler's theory, known as the overlapping waves model, suggests that learners use multiple strategies simultaneously and gradually shift towards more efficient ones over time. This process allows for a better understanding and application of math concepts, ultimately leading to improved problem-solving skills.

According to Siegler, the pattern of learning math concepts involves a gradual progression from using counting strategies to more efficient and accurate strategies. Children initially rely on counting strategies to solve math problems, such as counting fingers or objects. As they progress, they begin to use more advanced strategies, such as decomposition or mental math, which allow them to solve problems more quickly and accurately. Siegler also emphasizes the importance of practice and repetition in developing math skills and the role of feedback and instruction in promoting learning. Overall, Siegler's theory suggests that children's math skills develop through a combination of innate abilities and environmental factors, including exposure to math concepts and opportunities for practice and instruction in time.

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The 150 balcony seats were sold.

It is required to find how many balcony seats were sold.

The branch of mathematics dealing with the properties and manipulation of numbers. a science that deals with the addition, subtraction, multiplication, and division of numbers. Fractions, decimals, percentages, fractions, square root, exponents, and other arithmetic operations are used to achieve mathematical simplifications.

Given :

Main floor seat=$10
balcony seat= $8

There are 400 seats on the main floor and these seats were sold out for the evening performance.

The total revenue for tickets sold was $5200.

According to question the equation are

400(10)+8x=5200

4000+8x=5200

8x=1200

x=150

Therefore, the 150 balcony seats were sold.

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Answer:

3c+3

2c+c+3

Step-by-step explanation:

Got it mostly wrong bec of bad setup

Answer:

The slope of AB is 4/3

Step-by-step explanation:

The Slope of a Line

If a line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:

\(\displaystyle m=\frac{y_2-y_1}{x_2-x_1}\)

It's required to find the slope of the line AB shown in the figure. The coordinates of the endpoints are A(-3,2) B(0,6), thus the slope is:

\(\displaystyle m=\frac{6-2}{0+3}\)

\(\displaystyle m=\frac{4}{3}\)

The slope of AB is 4/3

Answer:

V=2924.8

Step-by-step explanation:

\(v = \pi \: {r}^{2} h\)

Volume is as seen above.

Place your values into your calculator:

V=

\(\pi \: ( {7)}^{2} \times 19\)

\( = 931\pi \: or \: 2924.8\)

Answer:

2926.0cm3

that is the answer

Step-by-step explanation:

Han is multiplying10x^4 by 0.5^3 and gets 5x^7 is not a polynomial because 0.5 is not an integer. What is the error in han’s thinking explain

On multiplying 10x⁴ by 0.5x³,

\(10x^4\times 0.5x^3=(10\times 0.5)x^{4+3}\\\\=5x^7\)

A polynomial is a combination of coefficients and variables. It is made up of one or more monomial. Han says that it is not a polynomial because 0.5 is not an integer. The statement is false. After multiplication we get 5x⁷. It has a variable x and constant 5. Hence, its is a polynomial.

Answer: with multiplicity 5.

Step-by-step explanation:

Answer: copper, silver, gold

Step-by-step explanation:

Answer:

copper siver gold

Step-by-step explanation:

i had this question too

Answer: 25

Step-by-step explanation:

If a room requires 25.4 square yards of carpeting,  the area of the floor is  228.6 ft².

The measurement that characterizes the size of a two-dimensional region, shape, or planar lamina in the plane is its area. The size of a patch on a surface is determined by its area. Surface area refers to the area of an open surface or the boundary of a three-dimensional object, whereas the area of a plane region or plane area refers to the area of a form or planar lamina.

1 yard = 3 feet

Squaring on both side

1²yard² = 3² feet²

1yard ² = 9 feet²

so 25.4 yard² will be

25.4 x 9 = 228.6 ft²

Thus, the area of the floor is 228.6 square feet.

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Answer:

Miami

Step-by-step explanation:

First, you can either convert Miami's temperature to farenheit, or convert Chicago's temperature to celcius.

I will convert Miami's temp, to farenheit:

\(F=\frac{9}{5}C\°+32 < ==divide\\\\F=1.8C\°+32 < == substitute\ 35\° for\ C\\\\F=1.8(35)+32 < ==multiply\\\\F=63+32 < ==add\\\\F=95\°\)

Miami: 95°F

Chicago: 75°F

Therefore, Miami is the warmer town.

Hope this helps!

√(3/4) and √(5/4) are the irrational numbers

Irrational numbers are numbers that cannot be expressed in the form a/b. They are mostly in the form of square roots when evaluated e.g √7, 2/√5, 3√11, etc.

The opposite of irrational numbers is rational numbers. Rational numbers are numbers that can be written in the form of a/b, where a and b are integers, and b is not equal to 0. e.g 1/3, 2/3, √4 = 4/1, √(1/9) = 1/3, etc.

Given: √(1/4), √(2/4), √(3/4), √(4/4), and √(5/4)

For √(1/4):

√(1/4) = 1/2

This is a rational number

For √(2/4):

√(2/4) = (√2) / 2

This is an  irrational number

For √(3/4):

√(3/4) = (√3) / 2

This is an irrational number

For √(4/4):

√(4/4) = 2/2 = 1

This is a rational number

For √(5/4):

√(5/4) = (√5) / 2

This is an  irrational number

Therefore, the irrational numbers are √(3/4) and √(5/4). So select them

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Answer:

i think it's a

Step-by-step explanation:

2x-2y+1

Step-by-step explanation:

you will add ir subtarct like terms only

Answer:

2x - 6y

Step-by-step explanation:

u have to divide

Answer:

b

Step-by-step explanation:

Answer: B

Step-by-step explanation:

i used math

Answer:

x+6=y and 3x=12

Step-by-step explanation:

Let x be the distance traveled by Bryan and let y be the distance traveled by Sam then the first equation would be:

x+6=y (x plus 6 is equal to y, Bryan's distance plus 6 is equal to Sam's distance) and the second one is:

3x=12 (3 times x is 12, 3 times the distance travelled by Bryan is 12)

So our statements/equations are:

x+6=y and

3x=12 (we dont write this as x=4 as it asks us to give the statements we got from the information given, we only start simplifying once it tells us to solve)

Answer:

Step-by-step explanation:

Answer:

C .10

Step-by-step explanation:

The domain of the given functions is as follows:
a. f(x): All real numbers except -3 and 3.
b. g(x): The closed interval [-2, 2].
c. f(x): All real numbers except -3 and 2.


a. The domain of a rational function like f(x) excludes the values of x that would make the denominator zero. In this case, x cannot be -3 or 3 because it would result in division by zero, which is undefined.

b. The domain of a square root function g(x) requires the expression under the square root to be non-negative. Solving the inequality 4-x^2 ≥ 0, we find the valid values of x lie between -2 and 2, inclusive.

c. Similar to function f(x), the domain of a rational function is determined by the values that make the denominator non-zero. In this case, x cannot be -3 or 2 because it would make the denominator zero. Thus, these values are excluded from the domain.

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Given:

The data set is:

0, 1, 1, 1, 2, 3, 4, 4, 6, 6, 9

To find:

The correct statement that represents the box plot of the data correctly.

Solution:

We have,

0, 1, 1, 1, 2, 3, 4, 4, 6, 6, 9

Divide the data in 2 equal parts.

(0, 1, 1, 1, 2), 3, (4, 4, 6, 6, 9)

Divide each parenthesis in 2 equal parts.

(0, 1), 1, (1, 2), 3, (4, 4), 6, (6, 9)

Here,

Minimum value = 0

First quartile = 1

Median = 3

Third quartile = 6

Maximum value = 9

A number line goes from 0 to 10. The whiskers range from 0 to 9, and the box ranges from 1 to 6. A line divides the box at 3.

Therefore, the correct option is D.

Answer:

its d

Step-by-step explanation: my yt Tray Clayps

It's not the complete question

For the function F(x)=3x-1, the value for F(-2) will be (-7).

How to tackle this type of question of function?

Put value of variable in the given function.

Here,

x=-2

then, F(-2) = 3(-2) - 1

         F(-2) = -6 - 1

         F(-2) = -7

Hence, F(-2) = (-7)

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The probability for -2.51 ≤ Z ≤ -1.53 is 0.0570.

The probability for Z ≥ -2.12 is 0.9830.

To find the probability for the given scenarios, we can use the Z-table or standard normal distribution table, which provides the cumulative probabilities for a standard normal random variable Z.

1) For -2.51 ≤ Z ≤ -1.53:

Find the cumulative probability for Z = -1.53 and Z = -2.51 using the Z-table. Then subtract the cumulative probability of Z = -2.51 from the cumulative probability of Z = -1.53.

P(-1.53) = 0.0630
P(-2.51) = 0.0060

P(-2.51 ≤ Z ≤ -1.53) = P(-1.53) - P(-2.51) = 0.0630 - 0.0060 = 0.0570

2) For Z ≥ -2.12:

Find the cumulative probability for Z = -2.12 using the Z-table. Since we want the probability that Z is greater than or equal to -2.12, we need to subtract the cumulative probability from 1.

P(-2.12) = 0.0170

P(Z ≥ -2.12) = 1 - P(-2.12) = 1 - 0.0170 = 0.9830

So, the probability for -2.51 ≤ Z ≤ -1.53 is 0.0570, and the probability for Z ≥ -2.12 is 0.9830.

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Answer:

5

Step-by-step explanation:

have a great day and hope helpful pls mark as brainliest

Answer:

x = 17

Step-by-step explanation:

the sum of the 3 angles in the triangle = 180° , that is

50 + 75 + 3x + 4 = 180

3x + 129 = 180 ( subtract 129 from both sides )

3x = 51 ( divide both sides by 3 )

x = 17

The inner dimensions are: Width = 0 feet, Length = -1 feet (doesn't make sense) and Height = 0 feet.

Your initial equation of \(x^2(x+1) = 6\) is close, but you need to add the thickness of the sides to the dimensions. Since each side is one foot thick, you need to subtract 2 feet from the length and 2 feet from the width to get the inner dimensions.

Let's start by defining variables for the inner dimensions:

Width: w - 2 feet

Length: w + 1 - 2 = w - 1 feet

Height: w - 2 feet

The volume of the planter is given by:

Volume = length x width x height

Substituting the values above and simplifying, we get:

\(V = (w-1)(w-2)^2 = w^3 - 5w^2 + 8w - 4\)

Since we want the planter to hold 6 cubic feet of dirt, we can set V equal to 6 and solve for w:

\(w^3 - 5w^2 + 8w - 4 = 6\)

\(w^3 - 5w^2 + 8w - 10 = 0\)

Now, we can use factoring or the rational root theorem to solve for w. Since the coefficients are small, we can try to guess a root, such as w = 2: \((2)^3 - 5(2)^2 + 8(2) - 10 = 0\)

This tells us that (w-2) is a factor of the polynomial. We can use long division or synthetic division to find the other factors:

\((w^3 - 5w^2 + 8w - 10) / (w-2) = w^2 - 3w + 5\)

Now, we have factored the polynomial as:

\((w-2)(w^2 - 3w + 5) = 0\)

Using the quadratic formula, we can solve for the other roots:

w = (3 ± sqrt(9 - 4(1)(5))) / 2

w = (3 ± sqrt(-11)) / 2

Since we cannot take the square root of a negative number, the only real solution is w = 2.

This means that there is a mistake in the problem statement or in the solution process. Please double-check the problem and try again.

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answer: 10

step by step explanation:

this is not a textbook way but

4:5 means 4/5 and we know that the numbers will be equal to this number so we can multiply the number 4/5*2/2 so we will get 8/10

8/10=4/5

and 8*10=80

so 1st no. is 8 and 2nd is 10

10>8

Answer:

greater number is 10

Step-by-step explanation:

the ratio of the 2 numbers = 4 : 5 = 4x : 5x ( x is a multiplier )

their product is 80 , that is

4x × 5x = 80

20x² = 80 ( divide both sides by 20 )

x² = 4 ( take square root of both sides )

x = \(\sqrt{4}\) = 2

then greater number = 5x = 5 × 2 = 10

Answer: 4 over 663 hope this helps