Does anyone know this?​

The algebraic expression 18n - 45 is correct for the statement "45 less than the product of 18 and a number written as an algebraic expression"

We can represent an unknown number using letters and then carry out basic mathematics operations to get the value of the unknown number.

Let us represent the unknown number with the letter "n"

The product of 18 and the number will be;

18 × n = 18n

45 less than the product of 18 and the number (n) is thus written algebraically as;

18n - 45

Therefore, 45 less than the product of 18 and a number(n) is written as an algebraic expression as 18n - 45.

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The fraction of the floor is covered by white tiles is 1/3.

A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.

Assumed figure:

Places covered by white tiles = 18

Total tiles = 54

The Fraction covered by white tiles will be:

= Number of whitw tiles / Total tiles

= 18/54

= 1/3

The Fraction is 1/3.

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Total number of free throws made for player 2 are 23 using histogram.

A histogram is a graphical depiction of continuous or discrete data. In a histogram, the frequency is represented by the area of a bar. Frequency density, which is proportional to frequency, is plotted on the y-axis, and intervals representing the range of values are plotted on the x-axis. One common graphing tool is the histogram. It is employed to present interval-scaled summaries of discrete or continuous data. It is frequently used to conveniently depict the main characteristics of the data distribution. A histogram is a graph in which the horizontal axis represents the values of the observations, and the vertical axis represents the density of those observations.

Given,

Histogram given,

Total number of free throws made for player 2 are:

8 + 9 + 6

23

Total number of free throws made for player 2 are 23 using histogram.

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Answer:

x = 2

y = -2

z = 9

(2,-2,9)

Step-by-step explanation:

Answer:

11 inches

Step-by-step explanation:

4x + x = 55    Combine like terms

5x = 55     Divide both sides by 5

x = 11  This is the length of the shortest piece the other piece is 44 4(11)

Answer:

11 inches, 44 inches

Step-by-step explanation:

First of all, we need to make this equation, into an algebraic one:

4x + x = 55

The x represents the number of inches for the rope.

Now you simplify:

5x = 55

This equation can be simplified to a regular division problem:

55/5 = x

Using basic division, x is equal to 11 inches.

Now, this is just the shorter rope.

Note that the other piece is 4 times larger than the short one:

4 x 11 = 44

Thus 11 inches and 44 inches is the answer

Answer: i dont kno man

Step-by-step explanation:

The given expression can be factorized to obtain 18h + 30k = 6(3h + 5k).

First find the greatest factor common to all the terms of the given expression. Then, take out that term as a common and the remaining terms are written inside a bracket.

The given expression is 18h + 30k.

The GCF of 18 h and 30 k is 6.

Now, the given expression can be factorized as  follows,

18h + 30k

= 6 × 3h + 6 × 5k

= 6(3h + 5k)

Hence, the factored form of the given expression is 6(3h + 5k).

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Answer:

125

Step-by-step explanation:

The values are (13) 323.33  (14) 22 (15) 80, (16) 361.67, (17) 169.33, (18) 0  (19) 40, (20)  50 (21) the width is 5 inches

We should know that percentage is a ration of fraction of 100

The given percentages are as follows:

(13) 30% of what gives 97

let the number be x in all cases

(30/100)*x=97

30x=9700

x=323.33

(14) (50/100)*x=11

50x=1100

x=22

(15)  (25/100)*x=20

25x=2000

x=80

(16)  (60/100)*x=217

60x=21700

x=361.64

(17)  (75/100)*x=127

75x=12700

x=169.33

(18)  (10/100)*x=0

10x=100*0

10x=0

x=0

(19)  (120/100)*x=48

120x=100*48

120x=4800

x=40

(20) (150/100)*x=75

150x=7500

x=50

(21) lenght = 10 inches

width = 50% of 10

= (50/100)*10

= 5 inches

Therefore the width is 5 inches

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The value of the expression 150 - 3x when x =2 is 144.

Expression in mathematics is combination of variables with the use of operations and given rules. It can be in the form of equation, numbers etc.

Given expression,

150 - 3x.

And we have x = 2.

Substituting the value of x to the expression

So,

150 -3x = 150 - 3(x = 2)

              = 150 - 3(2)

              = 150 - 6

              = 144

Therefore, the answer is 144.

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Answer: 30.36

Step-by-step explanation:

92% of 33 is 30.36. I don't know how Bella got 30.36 questions correct, but that is what I got.

Answer:

b = 2

Step-by-step explanation:

because of the 60° in the corner we know this triangle is the left half of an equilateral triangle (where all 3 sides are equally long, and all 3 angles are 60°).

therefore, b is half of the baseline of that equilateral triangle = 4/2 = 2.

so, b = 2 is the correct answer.

Probability of drawing a even number of dice is 0.5, The probability of flipping a head on a coin is 0.5,The probability of  choosing a red block out of a bag containing 1 red, 1 green and 3 green blocks is 0.2, The probability of  choosing a soccer ball out of a bag containing 4 soccer balls, 1 playground ball and 3 basketballs is 0.5 and The probability of  choosing a tennis ball out of a bag containing 5 rubber balls, 3 tennis balls, 6 bouncy balls and 1 squishy ball is 0.2.

It is a branch of mathematics that deals with the occurrence of a random event.

The probability of drawing a even number of dice.

A dice has 3 even numbers, 2, 4 and 6.

probability of drawing a even number of dice=3/6=1/2=0.5

The probability of flipping a head on a coin =1/2=0.5

The probability of  choosing a red block out of a bag containing 1 red, 1 green and 3 green blocks.

1/5=0.2

The probability of  choosing a soccer ball out of a bag containing 4 soccer balls, 1 playground ball and 3 basketballs.

4/8=1/2=0.5

The probability of  choosing a tennis ball out of a bag containing 5 rubber balls, 3 tennis balls, 6 bouncy balls and 1 squishy ball.

The probability is 0.2

Hence, probability of drawing a even number of dice is 0.5, The probability of flipping a head on a coin is 0.5,The probability of  choosing a red block out of a bag containing 1 red, 1 green and 3 green blocks is 0.2, The probability of  choosing a soccer ball out of a bag containing 4 soccer balls, 1 playground ball and 3 basketballs is 0.5 and The probability of  choosing a tennis ball out of a bag containing 5 rubber balls, 3 tennis balls, 6 bouncy balls and 1 squishy ball is 0.2.

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Answer:3/4 10

Step-by-step explanation:

Answer:

The function that represents g(x), a reflection of f(x) = 4(one-half) Superscript x across the x-axis, is g(x) = −4(one-half) Superscript x. This function is obtained by negating the exponent of the original function, which reverses the direction of the exponential growth and creates a mirror image of the original function across the x-axis. The other options listed do not correctly reflect the original function across the x-axis.

Step-by-step explanation:

The answer is 24

sorry if i did not say more its hard to explain sorry again

"The square root of a number, x, is 5less than the sum of the number and 2"  is √x = (x+2)-5

Two or more expressions with an Equal sign is called as Equation.

The given verbal statement is  "The square root of a number, x, is 5

less than the sum of the number and 2"

The x is the given number.

So square root of a number, x means √x

5 less than the sum of the number and 2.

sum of the number and 2 means x+2 and 5 less than the sum of the number and 2 means (x+2)-5

So √x = (x+2)-5 is the equation.

Hence, √x = (x+2)-5 expresses the verbal statement "The square root of a number, x, is 5less than the sum of the number and 2"

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Answer:

3×1/2 = 1.5km per week

14÷1.5=9.33 if you round it it would take 9weeks

Answer:20

Step-by-step explanation: 80 divided by 4 is 20

The distance between the cars after a hour is 14 meters.

Speed is the rate at which an object's location changes in a particular direction. The distance traveled on relation changes to a particular direction. The distance in relation to the time it took to travel the distance is the speed. It's a scalar quantity.

In this case, the cars leave town at the same time. One travels west at 56 mph, and the other travels south at 42 mph.

With the speed, the total distance after an hour will be:

= 56 - 42

= 14 meters

The cars are 14 meters apart.

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Answer:

20 days

Step-by-step explanation:

(A) only 2 is the line of symmetry of the given figure.

A form or item is divided into two equal and symmetrical portions by a line of symmetry.

Because it divides the figure symmetrically and the separated portions resemble mirror images of one another, we also refer to this line as the axis of symmetry or the mirror line.

The four lines of symmetry in a square are lines across the opposing vertices and the midpoints of the opposing sides.

Together, these four lines of symmetry make up a square.

Consequently, a square has two diagonal, one horizontal, and one vertical line of symmetry.

So, according to the given figure we can easily observe and tell that line 2 is the only one that divides the diagram into 2 identical parts.

Therefore, (A) only 2 is the line of symmetry of the given figure.

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The rent of the gym for one hour is $50 and for three hours it is $100.

It is the basic arithmetic operation, in which you are separating the number into some parts. One of the fundamental mathematical operations is division, which involves breaking a bigger number into smaller groups with the same number of components.

Given:

A recreation center charges $50 to rent the gym for 1 hour, and $100 to rent the gym for 3 hours,

Calculate the price if you rent a gym for 3 hrs = 100 / 3 = $33.33

Therefore, the rent of the gym for one hour is $50 and for three hours it is $100.

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Formula available for acceleration, velocity and position of plane are

k²=2as, k=30a, s=450a and the value of k is 230 ft/sec

rate of changes of distances with respect to time.

rate of changes of velocity with respect to time.

Given, final velocity, v= k ft/s

time needed to attain speed k is 30 s

time, t= 30 sec

acceleration, a = constant

initially at time t=o, velocity and distance travel by aircraft was also o

initial velocity u =0, distance s = 0

as per the formula regarding velocity, distance, time and acceleration

v² = u²+2as

as per the question final velocity v= k, initial velocity u=0

k² = 2as

again, the formula v= u+at

the velocity of v after 30 second

 k= a×30

acceleration, a= k/30

from the other formula, s=ut+1/2×at²

distance travel by aircraft after 30 second with initial velocity 0.

s= u×0+1/2×a(30) ²

s= 450a

previously we got a=k/30

now, s =450×k/30= 15k

if the runway is 3450 feet long and the plane needs to use the entire runway to take off then the value of k will be

s=15k

k=230 ft/sec

hence, the value of k is 230 ft/sec

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Probability of cars waiting at the drive-up window is P (X=0) = 0.1353 and P (X=2) = 0.2707

The variety of strategies for achievement. the number of potential outcomes. For instance, the chance of flipping a coin and obtaining heads is 1 in 2, as there is only one method to acquire a head and there are a total of 2 potential outcomes (a head or tail). We specify P(heads) = 1/2.

There are typically 2. chance of automobiles waiting at the drive-up window on any given morning at 9 o'clock, according to a Poisson distribution. a. P(x=0) P(x=0) X = 1, 2,..., 10

X≅ P(2)

a. P(x=0)

P(x=0)  

[tex]e^{-2}[/tex] . [tex]2^{0}[/tex] ÷ 0!

[tex]e^{-2}[/tex]

0.1353

b. P(x=2)

[tex]e^{-2}[/tex] .[tex]2^{2}[/tex] ÷ 2!

2[tex]e^{-2}[/tex]

0.2707

So

Probability of cars waiting at the drive-up window is P (X=0) = 0.1353 and P (X=2) = 0.2707

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78/9, √45 ,  ³√97 is the order of numbers from greatest to least.

Given,

The numbers;

³√97, 78/9, √45

We have to order these numbers from greatest to least.

Ordering of numbers;

A series of numbers can be arranged in numerical order. Both ascending and descending orders are possible. For instance, suppose you arranged a group of numbers in ascending order as 2, 55, 103, 256, and 802, for instance. This can make it much simpler to look through a large collection of numbers.

Here,

First we have to find the values of the numbers.

The value of ³√97 = 4.59

The value of 78/9 = 8.66

The value of  √45 = 6.71

So,

The greatest one is 78/9 and the least one is ³√97

Therefore,

The order of numbers from greatest to least is 78/9, √45 ,  ³√97

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Answer:

Z

Step-by-step explanation:

Answer: C

Step-by-step explanation:

He can make another project and still have 0.90 m of wire left.

What is the arithmetic operation?

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more quantities. Included in them is the study of numbers, especially the order of operations, which is important for all other areas of mathematics, including algebra, data management, and geometry. The rules of arithmetic operations are required in order to answer the problem.

Matthew has 8.2 meters of wire.

He uses 3.65 meters for the craft project.

Now, He wants to use the wire he left to complete one of the following projects.

The left wire is 8.2-3.65 = 4.55 m

So he can make another project and still have 0.90 m of wire left.

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Using a z-table for the value, the critical z-value for a confidence level of 85% is; ±1.439.

The critical value of a distribution is defined as the value beyond which the rejection region lies.

Now, for a confidence interval , the rejection region lies beyond two values, the positive and the negative critical value.

We are given that the confidence level is 85%.

Thus, the computation of the critical value of z for 85% confidence level is expressed as follows;

±z_α/2 = ±z_0.15/2

This is simplified to get;

±z_0.075 = ±1.439

That value is concluded to be the critical z-value at the given confidence level.

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