-225.4 is an irrational number.
True
False

Answer:

1, 2, 3 and 5

Step-by-step explanation:

1. 2,23 < 2,3 < 2,44 True

2. 2,23 <2,4 < 2,44 True

3. 2 < 2,23 < 2,34 True

4. 2,83 < 3 < 3 False

5. 2,83 < 2,9 < 3 True

6. 2 < 4,5 < 2,23 False

0 = 2c +2.

Subtracting 2 from both sides, we get

0-2 = 2c +2 -2

-2 = 2c

Dividing both sides by 2, we get

-2/2 = 2c/2

-1 =c.

Plugging c=-1 in first equation,

k=2(-1) = -2.

So the answer is -2.

Answer:

C. 4.88

Step-by-step explanation:

The computation of the Value of F is shown in the attachment below.

Data provided in the question is as follows

Number of treatments = 4

Total number of observations = 12 × 4 = 48

SST = 210

SS = 840

So, SSW is

= SS - SST

= 840 - 210

= 630

Based on the above information, the value of F is 4.88

Hence, the correct option is C. 4.88

The answer is A.

An indefinite integral is a function that, when differentiated, equals the original function. It is denoted by ∫f(x)dx, where f(x) is the function to be integrated. An indefinite integral always has an arbitrary constant of integration, which is denoted by C. This is because the derivative of any constant is zero, so the derivative of ∫f(x)dx+C is still equal to f(x).

A definite integral is the limit of a Riemann sum as the number of terms tends to infinity. It is denoted by ∫

a

b

​

f(x)dx, where a and b are the limits of integration. A definite integral does not have an arbitrary constant of integration, because the limits of integration specify a unique value for the integral.

In other words, an indefinite integral is a family of functions that share the same derivative, while a definite integral is a single number.

In the derivation of the formula for the volume of a cone, the volume of the cone is calculated to be D. the the sum of the area of the square and the area of the circle from a cross section.

It should be noted that a volume simply means the amount of three dimensional space that's enclosed by a closed surface.

It is typically meaured on cubic units.

In this case, in the derivation of the formula for the volume of a cone, the volume of the cone is calculated to be the the sum of the area of the square and the area of the circle from a cross section.

In conclusion, the correct option is D.

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Answer:

B. It is the ratio of the area of the circle to the area of the square from a cross section.

Step-by-step explanation:

The value of x is 81 since similar triangles have equal ratios of corresponding sides.

Given:

PQ ǁ MN

OQP=  N

QPO=  M

ΔOQP=ΔONM

OP/OM=OQ/ON  

45/X=40/72

X= (72×45)/40

X=81

If two figures have the same shape, they are said to be comparable. In more formal terms, two figures are said to be comparable if their respective angles are congruent and their corresponding side length ratios are identical. The scale factor is the name of this usual ratio.

Therefore, the value of X is calculated as 81.

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Using product and power rule to find the derivative f'(-1) of the given function is; f'(-1) = -17

The power rule is used when finding the derivative of a variable base, raised to a fixed power. However, the product rule allows us to find the derivative of a function that is defined as the product of another two (or more) functions

We are given;

f(x) = x⁸h(x)

h(-1) = 4

h'(-1) = 7

Finding the derivative of f(x) gives;

f '(x) = 8x⁷h(x) + x⁸h'(x)

Thus, f'(-1) gives us;

f'(-1) = 8(-1)⁷(4) + (-1)⁸(7)

= -24 + 7

= -17

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Loudness, pitch, and timbre are the three psychological aspects of sound that are influenced by the physical properties of sound waves.

When energy moves through a medium (such as air, water, or any other liquid or solid matter), it creates a pattern of disturbance known as a sound wave that propagates away from the sound source.

When an object vibrates, sound waves are produced that are similar to pressure waves, like when a phone rings.

Pitch, intensity, and timbre are three key components of the field of sound psychology or psychoacoustics. People can distinguish the harmonics of a complex periodic sound wave under certain conditions thanks to the way that humans perceive sound and music.

Thus, loudness, pitch, and timbre are the three psychological aspects of sound that are influenced by the physical properties of sound waves.

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Answer:

well I don't know

Step-by-step explanation:

your speaking vietnam

Answer:

Step-by-step explanation:

1) Using order of operations, the solution to the given expression is; 12

2) The estimated cost of groceries if the prices are estimated to the nearest dollar is; $42

In mathematics , the acronym for the right order of operations is PEMDAS which denotes;

P- Parentheses

E- Exponents

M- Multiplication

D- Division

A- Addition

S- Subtraction.

3) From the given statement, we are to add 6 to 12, then divide the sum by 4. Thereafter, we divide the quotient by negative nine and then multiply by twenty-four. This is expressed as;

[(6 + 12)/4] = 18/4 = 9/2

Then divide by -9 to get;

(9/2) ÷ 9 = 1/2

Then we multiply by 24 to get;

1/2 * 24 = 12

4) Let us first estimate each cost to the nearest dollar to get;

$6.47 ≈ $6

$14.72 ≈ $15

$7.99 ≈ $8

$9.40 ≈ $9

$2.79 ≈ $3

Total estimated cost = 6 + 15 + 8 + 9 + 3 = $42

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Answer:

8

Step-by-step explanation:

add them duh

Answer:

The set M of all square numbers less than 80 is:

M = {0, 1, 4, 9, 16, 25, 36, 49, 64}

The set N of all non-negative even numbers that are under 30 is:

N = {0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28}

Answer:

All elements of the set M in ascending order are:

All elements of the set N in ascending order are:

Step-by-step explanation:

A square number, also known as a perfect square, is a non-negative integer that is obtained by multiplying an integer by itself. In other words, it is the result of squaring an integer.

The square numbers less than 80 are:

An even number is an integer that is divisible by 2 without leaving a remainder.

The non-negative even numbers that are under 30 are:

Therefore:

All elements of the set M in ascending order are:

All elements of the set N in ascending order are:

Answer:

Yes!

Step-by-step explanation:

Okay so the absolute vaule of ANY number is posive of the same number so like having I-1I the absolute vaulse is I1I.

the absoulte vaule of I-xI= x so anything that is negitive goes to positive and if Positive it stays positive. If you need help find x let me know and make sure you have the write equation.

The amount she charges for each necklace is $7.50 (option B).

Profit is the total difference between total revenue and total cost. Total cost is the sum of fixed cost and variable cost.

Profit = total revenue - total cost

Profit = (price x quantity sold) - (fixed cost + total variable cost)

Profit = (price x quantity sold) - (fixed cost +(variable cost per unit x quantity sold)

P = 7.5n - (2.25n + 15)

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Considering the range of the data-set, it is found that:

In this problem, we consider the distribution symmetric around the mean of 3.4 volts, with the range of 1.3 volts meaning that the difference between the highest voltage and the lowest is of 1.3 volts.

Thus, the control limits are:

\(3.4 - \frac{1.3}{2} = 2.75\)

\(3.4 + \frac{1.3}{2} = 4.05\)

These are, respectively, the lower and upper limits.

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the Given:

The equation is,

Explanation:

Take a natural log on both sides of the equation and simplify it.

So value of x is,

Answer:

$1.60

Step-by-step explanation:

7 x 1.20 = 8.40

10 - 8.40 = 1.60

$1.60 change

Step-by-step explanation:

The change is  10 - 7*1.20  dollars.

calculate it by any way you can.

\(w^2 - 6w + 4\) is a polynomial that represents how much more profit is earned by selling w apple trees than w pear trees.

The profit earned by selling w pear trees is 2w + 10

To find the difference in profit, we need to subtract the profit earned by selling w pear trees from the profit earned by selling w apple trees:

\((w^2 - 4w + 14) - (2w + 10)\)

Simplifying the expression:

\(w^2 - 6w + 4\)

Therefore, the polynomial that represents how much more profit is earned by selling w apple trees than w pear trees is \(w^2 - 6w + 4\).

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Answer:

d. Several means when there are two independent variables, and the same entities have been used in all conditions.

Step-by-step explanation:

ANOVA is an abbreviation for analysis of variance and it was developed by the notable statistician Ronald Fisher. It is typically a collection of statistical models with their respective estimation procedures used for the analysis of the difference between the group of means found in a sample. Simply stated, ANOVA helps to ensure we have a balanced data by splitting the observed variability of a data set into random and systematic factors. In Statistics, the random factors doesn't have any significant impact on the data set but the systematic factors does have an influence.

Two-way repeated-measures ANOVA compares several means when there are two independent variables, and the same entities have been used in all conditions.

Hence, the aim of a two-way analysis of variance (ANOVA) is to give the relationship or identify if there is an interaction between the two independent variables on the dependent variable.

(9) The slope of a line perpendicular to the line, f(x) = 0.75x + 6 is - 4/3.

(10) The slope of a line parallel to this line, y = 10 -8x is -8.

The slope of a line perpendicular to the line is the negative reciprocal of the slope of the line equation.

Question 9.

f(x) = 0.75x + 6

where;

The slope of a line perpendicular to this line = -1/0.75 = -100/75 = -4/3

Question 10.

For the equation of another line, y = 10 - 8x

The slope of a line parallel to this line is equal to the slope of this line and it is calculated as follows;

y = 10 - 8x

where;

slope of a line parallel to the line = -8

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Answer:

Lcm of 6 and 12 is 12

Step-by-step explanation:

Because if you do the Lcm =

\(10^3 = 10 \times 10 \times 10 = 1000\)

Step-by-step explanation:

speed=distance÷time

A.V.S=440÷11=40m/s

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Answer:

40 m/s

Step-by-step explanation:

Find:

We are asked to find the unit rate, How many meters per 1 second?

Know:

440 meters in 11 seconds

Solve:

440 meters in 11 seconds

  ? meters in 1 second

   440/11  = 40 meters per second

Answer:

The average speed of the person is 40 m/s

Statement D is false.

What is Continuous function?

A function is continuous when its graph is a single unbroken curve that you could draw without lifting your pen from the paper. That is not a formal definition, but it helps you understand the idea.

The Intermediate Value Theorem states that if a function f is continuous on an interval [a, b] and k is a value between f(a) and f(b), then there is at least one value c in the interval such that f(c) = k.

In this case, f is continuous on the interval [0, 4] and 5 is between f(0) = 2 and f(4) = 18, so there must be a value c such that f(c) = 5.

Therefore, statement A is true.

The Mean Value Theorem states that if a function f is differentiable on an interval [a, b] and continuous on the closed interval [a, b], then there exists a value c in the interval (a, b) such that f'(c) = (f(b) - f(a))/(b - a).

In this case, f is differentiable and continuous on the interval [0, 4], so there must be a value c such that f'(c) = (f(4) - f(0))/(4 - 0) = 4.

Therefore, statement B is true.

The Extreme Value Theorem states that if a function f is continuous on a closed interval [a, b], then f must attain both a maximum and a minimum value on that interval.

In this case, f is continuous on the interval [0, 4], so it must attain both a maximum and a minimum value on that interval.

However, the theorem does not specify whether the maximum or minimum value occurs at the endpoint or somewhere in the interior of the interval.

Therefore, statement C is false, and statement D is also false.

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\( {( - 2)}^{p + 7} \times {( - 2)}^{p + 8} = {( - 2)}^{9} \\ = > {( - 2)}^{p + 7 + p + 8} = {( - 2)}^{9} \\ = > {( - 2)}^{2p + 15} = {( - 2)}^{9} \\ = > 2p + 15 = 9 \\ = > 2p = 9 - 15 \\ = > 2p = - 6 \\ = > p = \frac{ - 6}{2} \\ = > p = - 3\)

Answer:

decagon (10-sided polygon)

Step-by-step explanation:

A regular polygon has a minimum rotation of 360/n degrees about its center, where n is the number of sides in the polygon.

Therefore, the regular polygon with a minimum rotation of 36 degrees about its center is a polygon with 360/36 = 10 sides, or a decagon.

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With the help of proportions in the given similar triangles we know that the value of x is 3.5 units.

Euclidean geometry states that two objects are comparable if they have the same shape or the same shape as each other's mirror image.

One can be created from the other more precisely by evenly scaling, possibly with the inclusion of further translation, rotation, and reflection.

These three theorems—Angle-Angle (AA), Side-Angle-Side (SAS), and Side-Side-Side (SSS)—are reliable techniques for figuring out how similar triangles are to one another.

So, in the given situation:

TR and WY are as follows:
TR/WU

24/2

2/1

Similarly,

TS/WV

2/1

7/x

7/3.5

Therefore, with the help of proportions in the given similar triangles we know that the value of x is 3.5 units.

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