is 30 square root , irrational or rational​

Answer:

A. -3/5 B. 1/5. C. 0.8.

Step-by-step explanation:

Since A is on the left side of 0, it will be negative, in which -3/5 is the only negative answer on there, so A= -3/5. Since B is on the right side of the 0 it's positive, and it is equal to 1/5 which gets you to 0.20, which will be the value of each line since 1 divided by 5 is equal to 0.20. 0.8 is also known as 0.80 so C will be next to the 1.

Okay

.9

then

.29

also

.40

HA THERE YOU GO

Ella practices piano for 45 minutes.

She spends m minutes longer working on homework

From the question, The total minutes Ella spend on piano is 45 minutes

If she spend m minutes longer

In mathematics, more in word problem means addition

Total minutes spend on her home work is

m + 45

Let T be the total time she spendon her homework

T = Additional m minutes + 45 minutes spend on her piano

T = m + 45

The answer is T = m + 45

b) Σf( x) = 1 for all values of X is a needed condition for a discrete probability function.

A probability mass function, indicated as f( x), defines the probability distribution for a separate arbitrary variable, x. This function returns the probability for each arbitrary variable value.

Two conditions must be met when developing the probability function for a separate arbitrary variable( 1) f( x) must be nonnegative for each value of the arbitrary variable, and( 2) the sum of the chances for each value of the arbitrary variable must equal one.

A nonstop arbitrary variable can take any value on the real number line or in a set of intervals. Because any interval has an horizonless number of values, agitating the liability that the arbitrary variable will take on a specific value is pointless; rather, the probability that a nonstop arbitrary variable will lie inside a specified interval is considered.

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Correct question:

Which of the following is a required condition for a discrete probability function?

a) Σf(x) -0 for all values of x

b) Σf(x) = 1 for all values of X

c) Σf(x)< 0 for all values of x

d) Σf(x) ≥ 1 for all values of x

For the exponential function f(x) = 3(0.5)^x, we have that:

An exponential function is modeled according to the rule given below:

\(y = ab^x\)

In which the parameters are described as follows:

For this problem, the rule of the exponential function is given by:

y = 3(0.5)^x.

Hence the parameters are:

a = 3, b = 0.5.

Then:

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Answer:

decay; (0,3)

Step-by-step explanation:

Answer:

\(y=-x^3 + 4x^2 - 4x\)

Step-by-step explanation:

\(y=-x(x-2)(x-2) \\ \\ y=-x(x^2 - 4x+4) \\ \\ y=-x^3 + 4x^2 - 4x\)

Step 1: Use the slope formula y₂ - y₁/x₂ - x₁ to find the slope.

\(\frac{0 - (-4)}{-3 - 3}\\ \\\frac{4}{-6} = -\frac{2}{3}\)

Step 2: Plug the slope we found and one point into the slope-intercept formula, y = mx + b.

\(y = mx + b\\\\0 = -\frac{2}{3}(6) + b\\\\0 = -4 + b\\\\4 = b\)

Step 3: Put it all together.

\(y = -\frac{2}{3}x + 4\)

Answer:

22

Step-by-step explanation:

116-28

88/4

Answer:

• For the cost of the cooler, solve:

Let the cost of the cooler be x

Then, 100% of x = x

6% of x = 0.06x

• To find the total bill in terms of the cost of the cooler:

Total bill = cooler price + tax

= x + 0.06x

= 1.06x

• Set up an equation for the total bill in terms of $7.95:

1.06x = $7.95

• Solve for x:

x = $7.95/1.06

x = $7.50

Therefore, Anton paid $7.50 for the cooler alone without the tax.

Answer:

1)        270:206

2)      120:60

3)      74:24

4)      26:24

Step-by-step explanation:

if this is right can i get brainliest?

Answer:

x=6

Step-by-step explanation:

to find an angle of a right angled triangle we use the pythagorean property

which is

hypotenuse^2 = base^2 + altitude^2

10^2=x^2+8^2

100= x^2 + 64

x^2 +64 = 100

x^2=100-64

x^2=36

x= √36

x=6

Answer:

E) C and D. is the answer to ur q

The final factorized form of the expression (a - b) (x²-7) - (a - b) (4x + 5) is:(a - b) (x - 6) (x + 2)

Given expression is (a - b) (x²-7) - (a - b) (4x + 5).Here, (a - b) is a common factor in the given expression. We can factor out (a - b) as follows:(a - b) (x²-7) - (a - b) (4x + 5) = (a - b) [(x² - 7) - (4x + 5)] = (a - b) (x² - 4x - 12)Next, we can further factorize the expression x² - 4x - 12 as follows:x² - 4x - 12 = (x - 6) (x + 2)

Therefore, the final factorized form of the expression (a - b) (x²-7) - (a - b) (4x + 5) is:(a - b) (x - 6) (x + 2) - this is the answer.

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9514 1404 393

Answer:

Step-by-step explanation:

The solution steps are ...

  3(y -2) = 18 . . . . . . given

  3y -6 = 18 . . . . . . . eliminate parentheses using the distributive property

  3y = 24 . . . . . . . . . add 6 to both sides

  y = 8 . . . . . . . . . . . divide both sides by 3

The value of y is 8.

Answer:

Check below

Step-by-step explanation:

So 1 the relationship between the height of the tree and the time since it was planted is a set of unconnected points, since the tree eventually stops growing, it's not continuous.

2. The relationship is between the number of 12 dollar dvds and the total cost is a solid line, because you can buy an infinite amount of dvds so it's continuous.

3. The relationship between the height of a small child and the age of a small child recorded in months is a set of unconnected points. It's over the course of months, and he will eventually stop growing, so it's not continuos.

Check the picture below.

To find the amount of oatmeal in ounces for 1 ounce of milk, we use the following proportion

Now, we solve for x.

So, for 1 ounce of milk, the amount of oatmeal is 4/5 ounces.

Now, let's find the amount of milk for 5 1/10 ounces of oatmeal.

Now, we solve for x

Hence, there are needed 6 3/8 ounces of milk to get 5 1/10 ounces of oatmilk.

Answer:

142 minutes

Step-by-step explanation:

You subtract the initial fee of three dollars from the total to get 15.62 then divide 15.62 by .11 cents to get a final answer of 142 minutes

Answer:

(2,3,4,6,8,9,10,12)

The change of basis matrix from V to U is:

[v[U]] = [[3, 0, 1],

[1, 1, 2],

[1, -2, -3]]

To find the change of basis matrix from the basis V to the basis U, we need to express each vector in the basis U in terms of the basis V.

Let's denote the change of basis matrix from V to U as [v[U]]. We can find the matrix by expressing each vector in the basis U as a linear combination of the vectors in the basis V, and then arranging the coefficients as columns in the matrix.

To express U₁ in terms of the basis V, we need to find the coefficients a₁, a₂, and a₃ such that:

U₁ = a₁V₁ + a₂V₂ + a₃V₃

Substituting the given values:

2x + x + 3 = a₁(x² + 1) + a₂(x² + 2x + 2) + a₃(-3x² + x - 2)

Expanding and rearranging:

2x + x + 3 = (a₁ + a₂ - 3a₃)x² + (2a₂ + a₃)x + (a₁ + 2a₂ - 2a₃ + 3)

Equating the coefficients of the powers of x, we have the following system of equations:

a₁ + a₂ - 3a₃ = 0

2a₂ + a₃ = 1

a₁ + 2a₂ - 2a₃ + 3 = 3

Solving this system, we find a solution: a₁ = 3, a₂ = 1, a₃ = 1.

Similarly, we can express U₂ and U₃ in terms of the basis V:

U₂ = b₁V₁ + b₂V₂ + b₃V₃

U₃ = c₁V₁ + c₂V₂ + c₃V₃

Following the same procedure as above, we find the solutions: b₁ = 0, b₂ = 1, b₃ = -2 for U₂, and c₁ = 1, c₂ = 2, c₃ = -3 for U₃.

Now we can construct the change of basis matrix [v[U]]:

[v[U]] = [[a₁, b₁, c₁],

[a₂, b₂, c₂],

[a₃, b₃, c₃]]

Substituting the values we found:

[v[U]] = [[3, 0, 1],

[1, 1, 2],

[1, -2, -3]]

So, the change of basis matrix from V to U is:

[v[U]] = [[3, 0, 1],

[1, 1, 2],

[1, -2, -3]]

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Complete question =

In P₃ consider the bases U = {U₁, U₂, U₃} and V = {V₁, V₂, V₃} where

U₁ = 2x + x +3

U₂ = x² - x + 2

U₃ = 4x + 1

V₁ = x² +1

V₂ = x² + 2x +2

V₃ = -3x² + x-2

Find the change of basis matrix v[U].

Answer:43

Step-by-step explanation:

10-53

Answer:43

Step-by-step explanation:

Frequency distributions, count the number of times each value or range of values appears in a dataset, while percentage distributions show the proportion or percentage of times each value or range of values appears in the dataset.

Frequency distributions are useful for summarizing and describing the distribution of a variable in a data set, while percentage distributions are useful for comparing different variables or subgroups within the data set.

For example, a frequency distribution could be used to show the number of hours of sleep each participant in a study gets per night, while a percentage distribution could be used to compare the number of hours of sleep between males and females in the study.

Frequency distributions and percentage distributions provide different perspectives on the same data set and can be used together to gain a more complete understanding of the data.

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Answer:

Common Ratio = 2.5

Step-by-step explanation:

Given

Points: (1, 1), (2, 2.5), (3, 6.25)

Required

Determine the common ratio

The points can be rewritten as:

x --- f(x)

1 ---- 1

2 --- 2.5

3 ---- 6.25

The data under the x column are the domain of the function and in this case,  they are not needed;

To calculate common ration, Lena should use data in function f(x) column

Common ratio is calculated by dividing a term by the previous term;

Hence;

Common Ratio = 2.5/1 or 6.25/2.5

Common Ratio = 2.5 or 2.5

Notice that, the results are the same;

Hence, the usable common ratio is 2.5

Answer:

c

Step-by-step explanation:

edge2020

Answer:

13

Step-by-step explanation:

Given g(x)=-2x+5, find g(-4)

so you are substituting in -4 for x:

g(-4) = -2(-4) + 5

g(-4) = 8 + 5

g(-4) = 13

Answer:

Step-by-step explanation:

145.90

The probability that x is less than 6 is 5/8.

If x is a discrete uniform random variable ranging from one to eight, then each value from one to eight is equally likely to occur, and the probability of any particular value is 1/8.

To find p(x < 6), we need to add up the probabilities of all the values of x that are less than 6:

p(x < 6) = p(x = 1) + p(x = 2) + p(x = 3) + p(x = 4) + p(x = 5)

Since x is a discrete uniform random variable, the probability of each of these values is 1/8, so we can substitute that into the equation:

p(x < 6) = (1/8) + (1/8) + (1/8) + (1/8) + (1/8)

Simplifying, we get:

p(x < 6) = 5/8

Therefore, the probability that x is less than 6 is 5/8.

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The coordinates weighted average is 6.

The whole query is as follows:

The weights of the coordinates 3 and 8 are 2 and 3, respectively. Additionally, we must determine the weighted average.

The parameters are as follows:

Three has a weight of two.

The weight of coordinate 8 is 3.

Next, the weight average is determined as follows:

Weight average is equal to the product of the weight and the coordinates.

We thus have:

Average weight: (3 * 2 + 8 * 3)/(2 + 3)

Assess the quotient.

Average weight = 6

Consequently, the coordinates' weighted average is 6

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Answer:

Step-by-step explanation:

9(x+1)=25+x

9x+9=25+x  subtract x both sides

8x+9=25    subtract 9 both sides

8x=16  divide by 8

x=2

The value of the inequality: 6 > - 3x is 1. x < -2

Inequalities are created through the connection of two expressions. It should be noted that the expressions in an inequality aren't always equal. Inequalities implies that the expressions are not equal. They are denoted by the symbols ≥ < > ≤.

From the information, 6 > - 3x. This will be:

6 > - 3x.

Divide

x < 6 / -3

x < -2

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Complete question

Solve the inequality: 6 > - 3x.

1. x < -2

2. x > -2

3. x < 12

4. x > 12

1. Variable manufacturing overhead rate variance

The formula Actual Hours × (Actual Rate - Standard Rate) is used to calculate the variable manufacturing overhead rate variance. This variance measures the difference between the actual variable manufacturing overhead cost incurred and the standard variable manufacturing overhead cost that should have been incurred, based on the standard rate per hour.

Variable manufacturing overhead rate variance = Actual Hours × (Actual Rate - Standard Rate)

The variable manufacturing overhead rate variance provides insight into how efficiently a company is utilizing its variable manufacturing overhead resources in terms of the rate per hour. A positive variance indicates that the actual rate paid per hour for variable manufacturing overhead was higher than the standard rate, resulting in higher costs. On the other hand, a negative variance suggests that the actual rate paid per hour was lower than the standard rate, leading to cost savings.

By analyzing this variance, management can identify areas where the company may be overspending or underspending on variable manufacturing overhead and take corrective actions accordingly, such as renegotiating supplier contracts or optimizing resource allocation.

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