Work out √45 - √5
Give your answer as an integer or as a surd in it’s simplest form

The population difference within the pair is normal.

The population distribution of mice with and without diabetes are identical.

mRNA population distribution for mice with diabetes is shifted relative to the population distribution for mice without diabetes.

Conclusion,

the two population has same shape , the two samples are independent  simple random samples  and the two samples are paired , the population means are the same .

Hence, each of the two population distribution is normal.

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The real distance between the ship and the base is 35 km and the measure of the bearing of B from S would be; 70 degrees.

Scale factor is the factor which is used to enlarge or smaller the original figure. Scale factor is the ratio of representation measurement of the figure to the original figures.

The figure represent the position of the ship(S) and the marine base(B).

a) Real distance between the ship and the base is;

When the distance from ship and the base is measured by rules. It comes out 3.5 cm.

The scale of the diagram is 1 cm, represents 10 km. Thus,

BS = 10/ 1 x 3.5

BS = 35 km

b) Measure the bearing of B from S

With the help of compass, the bearing angle of B from S is measured as the given;

Angle BSN = 70 degree

Thus, the real distance between the ship and the base is 35 km and the measure of the bearing of B from S would be; 70 degrees.

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Answer:

because these angles are equal to right angle triangle

i) Distance between X and Y along the equator ≊ 6258 km

ii) Distance of X from the North pole ≊ 10057 km

What is the equator ?

The Equator is a fictitious line that circles the globe's center. The line that separates the Northern Hemisphere from the Southern Hemisphere is located halfway between the North and South Poles.

The Longitude difference = 123° - 67° = 56°

(i) Distance between X and Y along the equator

= (56/360)×2×(22/7)×6400cos(0)

= (56/360)×2×(22/7)×6400

= 6257.78 km  

≊ 6258 km

(ii) Latitude difference =  90°

Distance from the North pole

= (90/360)×2×(22/7)×6400

= 10057.14 km

≊10057 km

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Both the positive and the negative equations are set up to check the same distance from zero.

Absolute value refers to the distance of a number from zero regardless of the direction, which is indicated by the signs (positive if to the right of zero, and negative if to its left).

When solving absolute value equations, we must provide all possible answers that are of the same distance from zero. That means solving for the positive equation, which gives us the number to the right of zero, as well as solving for the negative equation, which gives us the number to the left of zero with the given distance (absolute value).

Therefore, both the positive and the negative equations are set up to check the same distance from zero.

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The surface area of the solid pyramids are as follows;

First figure; 436 square units

Second figure; 319 square units

Third figure; 673 square units

A pyramid is a shape that consists of a polygon base and side faces that are triangular.

First figure

The figure is a pentagonal pyramid of height 8 units and side length of 10 units

The apothem, a, can be obtained from the formula;

[tex]a = \dfrac{s}{2\cdot tan \left(\dfrac{180}{n} \right)}[/tex]

s = 10

n = 5

[tex]a = \dfrac{10}{2\cdot tan \left(\dfrac{180}{5} \right)} \approx 6.88[/tex]

Slant height ≈ √(8² + 6.88²) ≈ 10.55

Area of the 5 triangles = 5 × (1/2) × 10 × 10.55 ≈ 263.75

Area of pentagonal base ≈ (1/2) × 6.88 × 5 × 10 = 172
Area of the figure ≈ 263.75 + 172 ≈ 436

Second figure;

Square pyramid

n = 4

When s = 8, we get;

[tex]a = \dfrac{12}{2\cdot tan \left(\dfrac{180}{4} \right)} =6[/tex]

Slant height of the 8 units long side = √(6² + 10²) ≈ 11.66

Area of two of the four triangle surfaces = 2×(1/2)×8 ×11.66≈ 93.28

When s = 12 we get;

[tex]a = \dfrac{8}{2\cdot tan \left(\dfrac{180}{4} \right)} =4[/tex]

Slant height of the 12 units long side = √(4² + 10²) ≈ 10.77

Area of two of the four triangle surfaces = 2×(1/2)×12 × 10.77 ≈ 129.24

Area of the rectangular base = 12 × 8 = 96

Area of the figure = 93.28 + 129.24 + 96 ≈ 319

Third figure

Octagonal pyramid

n = 8

s = 8

[tex]a = \dfrac{8}{2\cdot tan \left(\dfrac{180}{8} \right)}\approx 9.66[/tex]

Slant height = √(9.66² + 6²) ≈ 11.37

Area of the 8 triangles = 8 × (1/2) × 8 × 11.37 ≈ 363.84

Area of the octagonal base = 2×(1 + √2)×s²

Therefore;

2×(1 + √2)×8² ≈ 309.02

Area of the figure ≈ 363.84 + 309.02 ≈ 673

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If the level of the klater in the river klas 35cm above a mark. A week later it was 12cm below the mark. The water level drop during the week is 23 cm.

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.

It is given that one day the latter's water level was 35 cm above the mark. It was 12 cm below the mark one week later.

We have to apply the subtraction operation for the given operation,

In mathematics, subtraction is defined as the difference between two quantities. The application of subtraction can be used broadly in different applications to find or solve the problems such as finding differences between two quantities and many more.

=35 - 12

=23 cm

Thus, if the level of the klater in the river klas 35cm above a mark. A week later it was 12cm below the mark. The water level drop during the week is 23 cm.

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Selling price of the hair clip with markup 200 percent and cost of $0.50 is $1.50.

As given in the question,

Cost to manufacture a hair clip is equal to $0.50

Markup percent = 200%

Let 'x' be the selling price of the hair clip.

Formula used for markup percent is:

Markup percent =( Selling price - cost ) / cost

Substitute the value we get,

⇒ 200% =( x- 0.50) / 0.50

⇒ 200/100 =( x- 0.50) / 0.50

⇒ x - 0.50 =2 × 0.50

⇒ x =  $1.50

Therefore, the selling price of the hair clip with given markup percent and cost is $1.50.

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Depth first search (DFS) is an algorithm for reversing traversing or searching tree or graph data structures.

If there are two vertex-disjoint paths connecting any two vertices, the graph is biconnected .A straightforward cycle passes through any two vertices in a biconnected graph.

If a connected graph is connected but does not have any Articulation Points, it is Biconnected .In a graph, we mostly need to check two things.

1.The chart is associated.

2.There isn't enunciation point in diagram.

DFS traversal commences at any vertex. We check to see if there is an articulation point during DFS traversal .

The graph is biconnected if no articulation points are found. Lastly, we must determine whether DFS was able to reach all vertices. The graph would not even be connected if none of its vertices could be reached.

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The value of  x is 46.6 degree

What is the trigonometric ratio?

Trigonometric ratios are the ratios of a right triangle's sides. The sine (sin), cosine (cos), and tangent (tan) are three often used trigonometric ratios. There are other trigonometric ratios which are reciprocals of these ratios.

Trigonometric ratios can be computed either using the provided acute angle or by calculating the ratios of the right-angled triangle's sides.

tan θ = opposite /adjacent = 5.7/5.4 = 1.0555

θ = arctan ( 1.0555 ) = 46.6 degree = x

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By the Lacey Act, it can be concluded that

Whole animals and plants, live specimens, and falsely labelled parts or products are all prohibited under the Lacey Act

What is initial Lacey Act?

There are many wild animals in United States of America that were illegally smuggled, traded or sold. Lacey Act is a conservation law which is passed in the United States of America that stops the illegal trading, smuggling and selling of these wild animals.

Whole animals and plants, live specimens, and falsely labelled parts or products are all prohibited under the Lacey Act

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The present value of the annuity that will pay the given periodic payments is $ 332.99

since we are given a monthly payment of $430.80  for the period of  6 years with an interest of  4.3%, and it is said that the compounding periods and the payment periods are the same for an annuity and for an amortization.The formula for calculating the   present value of the annuity  is : FV= PV(1+i/12)¹²ⁿ, where F Vis the future value,  PV is the present value, i is the interest and n is the period of time.So substituting the know values in the above formula, we get the present value to be: $ 332.99

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Joint Distribution of x and y is 25.

Joint Distribution is based on joint probability, which can be simply defined as the probability of two events happening together.

We know the formula for joint distribution

F(x,y) = P(X ≤ x and Y ≤ y) = ∑∑p(xi,yi)

Here x is the number of aces and y is the number of kings in a poker hand.

That means x can take values from 0 to 4 and y can take values from 0 to 4.

∴ F(x,y) = P(X ≤ 4 and Y ≤ 4)

⇒ F(x,y) = p(0,0) + p(0,1) + p(0,2) + p(0,3) + p(0,4) + p(1,0) + p(1,1) + p(1,2) + p(1,3) + p(1,4) + p(2,0) + p(2,1) + p(2,2) + p(2,3) + p(2,4) + p(3,0) + p(3,1) + p(3,2) + p(3,3) + p(3,4) + p(4,0) + p(4,1) + p(4,2) + p(4,3) + p(4,4).

To find all these values we will construct a table as follows;

P(x,y)           Y=0      Y=1         Y=2      Y=3    Y=4

X=0              0          1/4          1/2        3/4       1      

X=1               1/4        1/2        3/4         1        5/4

X=2             1/2         3/4         1            5/4     3/2

X=3             3/4          1          5/4         3/2      7/4      

X=4               1          5/4         3/2       7/4       2

Now the joint distribution will become,

F(x,y) = 0 + 1/4 + 1/2 + 3/4 + 1 + 1/4 + 1/2 + 3/4 +1  + 5/4 + 1/2 + 3/4 + 1 + 5/4 + 3/2 + 3/4 + 1 + 5/4 + 3/2 + 7/4 + 1 + 5/4 + 3/2 + 7/4 + 2

F(x,y) = 25

Therefore the joint distribution of x and y is 25.

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The angular momentum of the earth in its orbit around the sun is compared with the angular momentum of earth on its axis as below :

Earth's radius is 6.38 x 106 meters, its mass is 5.97 x 1024 kg, and its orbital radius is 1.5 x 1011 meters. The period of the earth's rotation is 24 hours, or 86400 seconds. The period of its revolution is one year, or 3.156 x 107.

Finding the angular momentum entails

L = mE x r2 x w L = 2.6742 x 1040kg.m2.s-1

I= 2/5M.R2 L8= 7.07 x 1023kg.m2.s-1 for a homogeneous sphere with mass M, radius R, and an axis through its center.

Earth's angular momentum in a circular orbit around the sun is measured at Li=2.6742 x 1040 kg.m2.s-1.

Given that the radius of the planet is so small in comparison to the distance from the sun, it makes sense to model the earth as a particle.

L8= 7.07 x 1023 kg.m2.s-1 is the size of the earth's angular momentum as a result of its revolution around an axis passing through the north and south poles.

Parameters and Calculations:

Earth's mass, mE, is 5.97 x 1024 kg, and its radius, R,

the earth's orbital parameters are as follows: RE= 6.38 x 106 m, r= 1.5 x 1011 m, t=24h = 86400 s, and t=1 year = 3.156 x 107

Finding the angular momentum entails

L=mexr2xw where

L = 2.6742 x 10-40 kg/m2/s-1

For a homogeneous sphere with mass M, radius R, and a central axis,

I= 2/5M.R^2

L8 = 7.07 x 1023 kg/m2/s-1

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The value of the expression will be;

⇒ 2y + 1

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ (2x - 3y - 5) - (2x - 5y - 6)

Now,

Solve the expression as;

The expression is,

⇒ (2x - 3y - 5) - (2x - 5y - 6)

⇒ 2x - 3y - 5 - 2x + 5y + 6

⇒ 2x - 2x - 3y + 5y - 5 + 6

⇒ 2y + 1

Thus, The value of the expression will be;

⇒ 2y + 1

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The given statement that Adverse selection occurs because of asymmetric information is true . Because it happens when one party have no idea about other party .

Adverse Selection:

Adverse selection generally refers to the situation in which the seller has information that the buyer does not have or, conversely, knows about aspects of the product's quality. In other words, it is a case of misusing asymmetric information. Information asymmetry, also known as information impairment, occurs when one party to a transaction has more important knowledge than the other party.

For example, corporate managers may be more willing to issue stock if they know that the stock is overvalued relative to its true value. Buyers may suffer losses by purchasing overvalued stocks. In the used car market, sellers can learn about vehicle defects and charge buyers extra fees without disclosing the problem.

A common consequence of negative selection is that consumers lack information from sellers and manufacturers, increasing costs and creating market asymmetries.

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The number of 5 or fewer digits that are even or divisible by 5 and do not contain any repeated digits is 2500.

In a positional numeral system, a numerical digit is a single sign that can be used singly or in combination to represent numbers.

A digit is a part of a set that, when combined, makes up a numeration system.

For example 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 are digits.

The number of even digits 5 is 0,2,4,6,8.

Number of ways we can choose the first digit = 2,4,6,8 (0 cannot be taken in first)

Number of ways we can choose second, third, fourth, and fifth digits = 5

Number of ways or combinations,

4 × 5 × 5 × 5 × 5 = 2500

Hence "The number of 5 or fewer digits that are even or divisible by 5 and do not contain any repeated digits is 2500".

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A plaintiff who sues on the basis of disparate-treatment discrimination in hiring must make out a prima facie case of illegal discrimination and will win in the absence of a legally acceptable employer defense. True

Disparate treatment discrimination refers to the form of discrimination from an employer who blatantly treats an employee, or a potential employee differently based on the individual’s race, religion, color, sex, national origin, etc. It is intentional employment discrimination. A plaintiff who sues on the basis of disparate-treatment discrimination in hiring must make out a prima facie case. Prima facie case refers to a cause of action or defense that is sufficiently established by a party's evidence to justify a verdict in their favor, provided such evidence is not rebutted by the other party. The facts of the case are assumed to be true unless contradicted by evidence, hence if the plaintiff has produced sufficient evidence of their claim that the case will be decided for the plaintiff unless the defendant produces evidence to rebut it. To establish prima facie case, the plaintiff must be a member of the a protected class, must have applied and was qualified for the job in question, was rejected by the employer, and employer continued to seek applicants for the position or filled the position with a person not in a protected class. If plaintiff establishes all of this, burden now falls on employer as they must then prove their reasoning.

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The value of cost of all the product is 32.50

The amount a buyer pays for a good or service is known as the selling price. It may differ based on the price that buyers are prepared to pay, the seller's acceptance threshold, and how competitive the price is in relation to those of competing companies in the market.

Formulas and Calculations for Sale Prices Percent Off Price Formula

List price - (List price x (percentage / 100)) = Discounted price

For instance, the sale price is 25% off the list price of $130.

Divide 25% by 100 to get the decimal equivalent: 25/100 = 0.25

Divide the list price by the decimal percent: 130*0.25 = 32.50

Subtract the amount of the discount from the list price: 130 - 32.50 = 97.50

Using the formula:

130 - (130*(25/100)) =

\s130 - (130*0.25) =

       \s130 - 32.50 = 97.50

25% off $130 is $97.50

Formula for Fractional Off Price

List price - Discounted price (List price x fraction)

Example: The sale price is one-third of the list price of $120.

Divide the list price by the fractional discount: 120*1/3 = 40

Subtract the amount of the discount from the list price: 120 - 40 = 80

Using the formula:

120 - (120*1/3) = \s120 - 40 = 80

1/3 off $120 is $80

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By substituting the point and slope we know, we can solve for b (the y-intercept.) This will allow us to write the full equation, as we already know the slope.

Solving for B

Set up equation                                                                   y = mx + b

Substitute                                                                             5 = -5(-4) + b

Simplify                                                                                 5 = 20 + b

                                                                                            -20 -20  

Solve                                                                                    -15 = b

Writing the Equation

Set up equation                                                                   y = mx + b

Substitute                                                                             y = -5x - 15

Solve                                                                                    y = -5x - 15

Check:

We can check if our equation is right by graphing it. In this graph, you can see it has a slope of -5 and goes through the point (-4,5). Therefore, our answer is correct:

Answer:

d. 0.875

Step-by-step explanation:

Having at least 1 girl out of 3 children means that there can be 1, 2 or 3 girls out of the 3 children.

So having at lest 1 girl out of 3 children is the same as saying that all 3 children are not boys.

The probability that all 3 children are boys would be

chance that child 1 is a boy * chance that child 2 is a boy * chance that child 3 is a boy = 0.5 * 0.5 * 0.5 = 0.125

And the probability that NOT all 3 children are boys would be

100% - probability that all 3 children are boys = 1 - 0.125 = 0.875

The number of ways to chose a president, vice president, secretary, and treasurer of the club, where no person can hold more than one office is 11880.

If the person cannot hold more than one office.

Then the number of ways of selecting a president, vice president, secretary and treasurer of the club from the club consisting of 12 member is given by the permutation ¹²P₄.

Because we have to select four member out of 12,

So, solving further,

= ¹²P₄

= 12!/(12-4)!

= 12!/8!

= 12 x 11 x 10 x 9

= 11880.

So, there are a total of 11880 ways to chose the members.

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Complete question - A club has 12 members A president, a vice president, a secretary, and a treasurer are to be chosen from these members. A member cannot serve for more than one position. In how many ways can this be down?

The two companies will charge the same for 20 tons of sugar and the cost when the two companies charge the same is calculated to be $9510

The amount of sugar for which the charge will be equal can be determined by using an algebraic expression as follows;

5495 + 200.75x = 7500 + 100.50x

Here x represents tons of sugar

200.75x - 100.50x = 7500 - 5495

100.25x = 2005

x = 2005 ÷ 100.25

x = 20

Hence for 20 tons of sugar, the two companies will charge the same. Now by substituting the value of x = 20, the cost when the two companies charge the same can be determined as follows;

5495 + 200.75x = 5495 + 200.75 (20) = 5495 + 4015 = $9510

Hence $9510 is the cost when the two companies charge the same.

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The value of x is 10.

Parallel lines are those straight lines that are always the same distance apart from each other. Parallel lines never meet, no matter how much they are extended.

Given that, three lines parallel to each other,

We know, segments in parallel lines are in equal proportion,

5/4 = (2x-10)8

10 = 2x-10

2x = 20

x = 10

Hence, the value of x is 10.

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Answer:

[tex]\huge\boxed{\sf f = 9}[/tex]

Step-by-step explanation:

-(f + -8) = -1

Distribute

-f + 8 = -1

Subtract 8 to both sides

-f = -1-8

-f = -9

Divide -1 to both sides

[tex]\rule[225]{225}{2}[/tex]

The Range of the function f(x) = x² is [0,∞)  .

Range of the function f(x) is defined as the set of all output values of the function.

In the question,

the function is given as f(x) = x² ,

we have to find the Range of it .

So , f(x) = x² ,

on substituting the x [tex]=[/tex] -1 , we get the value of  f(-1) is = 1 ,

on substituting x = 0 , we get f(0) = 0 ,

on substituting x = 1 , we get f(1) = 1.

we see that Substituting positive values as well as negative values , the result is positive .

So , the Range of the function f(x) is   [0,∞) .

Therefore , the Range of x² is [0,∞) .

The given question is incomplete , the complete question is

What is the range of the function f(x) = x² ?

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Answer:

Step-by-step explanation:

x=(y-7)/

Answer:

70%

Step-by-step explanation:

Nick now: 8

Jonas now: 14

Nick in 6 years: 8 + 6 = 14

Jonas in 6 years: 14 + 6 = 20

percent = part/whole × 100%

percent = 14/20 × 100%

percent = 0.7 × 100%

percent = 70%

Answer:

Step-by-step explanation: 1 of them

Answer:

1930,00

Step-by-step explanation:

Gross income - expenses = net income