Help me!!! I need to find the scale factor. Solve for x and y

Answer:

In 2 2/5 hours, he will cover 20 km.

Step-by-step explanation:

Given that,

Ahmed can 8 1/3 km in one hour.

We need to find the distance he cover in 2 2/5 h.

In 1 hour = 8 1/3 km = 25/3 km

2 2/5 hour means 12/5 hour

In 12/5 hour = 12/5 × 25/3 km

= 20 km

So, in 2 2/5 hours, he will cover 20 km.

Therefore, we can expect the world population to be around 17.6 billion in the year 2100 if it continues to increase exponentially with a doubling time of 60 years.

A decimal place is a position in a number that is to the right of the decimal point. It represents a fractional part of the number. For example, in the number 3.14159, the digit "1" is in the tenths place, the digit "4" is in the hundredths place, the digit "1" is in the thousandths place, and so on. Each place value to the right of the decimal point represents a power of 10 that is negative, such as tenths, hundredths, thousandths, ten-thousandths, and so on. The number of decimal places determines the degree of precision in the number.

by the question.

To determine the population in the year 2100, we need to calculate how many times the population will double between 2022 and 2100, which is 78 years.

78 years divided by 60 years is approximately 1.3, which means that the population will double 1.3 times between 2022 and 2100.

2 to the power of 1.3 is approximately 2.2, which means that the population in 2100 will be 2.2 times the population in 2022.

So, the population in 2100 will be:

8 billion x 2.2 = 17.6 billion (rounded to one decimal place)

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Answer:

A. {-1, 0, 5, 10}

Step-by-step explanation:

Given:

(-1, 1), (0, -1), (5, -11), (10, -21)

Required:

Domain of the set of the above ordered pairs

SOLUTION:

Domain of any set of ordered pairs includes all the x-values in the set of ordered pairs, while the y-values in the set of the ordered pairs makes up the range.

The first value in an ordered pair is the x-value while the second is the y-values, i.e. (x, y).

Therefore, the domain for the given set of ordered pairs is:

{-1, 0, 5, 10}.

The correct option is A.

Question:

What is the domain of the set of ordered pairs above?

A.  {1, -1, -11, -21}

B.  {-1, 1}

C.  {-1, 0, 5, 10}

D.  {-1, 10}

Answer:

C.  {-1, 0, 5, 10}

Answer:

( f − g) ( 4 ) = − 59

Step-by-step explanation:

Answer:

(f - g)(4) = 1

Step-by-step explanation:

Step 1: Define

f(x) = 4x - 3

g(x) = x + 2x

Step 2: Simplify

g(x) = 3x

Step 3: Find (f - g)(x)

(f - g)(x) = 4x - 3 - (3x)

(f - g)(x) = x - 3

Step 4: Substitute and Evaluate

(f - g)(4) = 4 - 3

(f - g)(4) = 1

Answer:

3

Step-by-step explanation:

for the first word in three, its they are basically makes the most sense.

Answer:

3 because it is very correct and sounds normal

Answer: 15

120/8 = 60/4 = 15

Answer:

15

Step-by-step explanation:

Reason: Split the angle 155 in half to get 155/2 = 77.5

Answer:A topic sentence is used to bring

to a paragraph.

Step-by-step explanation:

A topic sentence is used to bring

to a paragraph.

Vision: If I lacked my vision it would affect my everyday day life because if I can not see then I won't be able to do everyday day things. For example if I go shopping I wouldn't be able to see the color or style of what it  looks like.

Smell: If I lacked smell it wouldn't really affect me but if I were to buy a perfume I wouldn't know if it smells good then if it doesn't I would be the one who would end up smelling bad.

Touch: If I weren't able to pick things up anything my live would be extremely hard because I wouldn't be able to pick up anything.

Taste: If I lost my taste it wouldn't affect me at all I would just be mad I can't taste all my favorite foods.

Hearing: If I couldn't hear it would be hard because if someone were to shout out because a car is coming etc. I wouldn't know and get hit and I don't want that so it would be really hard to not hear.

Hope this helps :)

Answer:

x power 2 and -9 is the result

Answer:

n - 8 ≥ 10

n ≥ 18

Step-by-step explanation:

Hello!

8 less than the number n can be represented as n - 8.

To be atleast 10, we can have values greater than 10 and equal to 10, but cannot be less than 10 . We can use the ≥ symbol to represent this.

The inequality would be n - 8 ≥ 10

n has to be greater than or equal to 18

Answer:

(st)(6)= s(6) * t(6)

Step-by-step explanation:

(st)(6)

(st)(x)= s(x) * t(x) we multiply it

(st)(6)= s(6) * t(6)

Hope this helps.

Answer:

a) P(x=3)=0.089

b) P(x≥3)=0.938

c) 1.5 arrivals

Step-by-step explanation:

Let t be the time (in hours), then random variable X is the number of people arriving for treatment at an emergency room.

The variable X is modeled by a Poisson process with a rate parameter of λ=6.

The probability of exactly k arrivals in a particular hour can be written as:

\(P(x=k)=\lambda^{k} \cdot e^{-\lambda}/k!\\\\P(x=k)=6^k\cdot e^{-6}/k!\)

a) The probability that exactly 3 arrivals occur during a particular hour is:

\(P(x=3)=6^{3} \cdot e^{-6}/3!=216*0.0025/6=0.089\\\\\)

b) The probability that at least 3 people arrive during a particular hour is:

\(P(x\geq3)=1-[P(x=0)+P(x=1)+P(x=2)]\\\\\\P(0)=6^{0} \cdot e^{-6}/0!=1*0.0025/1=0.002\\\\P(1)=6^{1} \cdot e^{-6}/1!=6*0.0025/1=0.015\\\\P(2)=6^{2} \cdot e^{-6}/2!=36*0.0025/2=0.045\\\\\\P(x\geq3)=1-[0.002+0.015+0.045]=1-0.062=0.938\)

c) In this case, t=0.25, so we recalculate the parameter as:

\(\lambda =r\cdot t=6\;h^{-1}\cdot 0.25 h=1.5\)

The expected value for a Poisson distribution is equal to its parameter λ, so in this case we expect 1.5 arrivals in a period of 15 minutes.

\(E(x)=\lambda=1.5\)

sec(theta) = 1/cos(theta)

I believe that is your option D

From the graph attached below, the solution to the system of linear inequalities are (1, 4)

A system of linear inequalities is a collection of linear inequalities in the same variables. The solution is any ordered pair that satisfies each of the inequalities.

In the problem given;

y < - x + 5 ...eq(i)

y ≥ 3x + 1 ...eq(ii)

To determine the solution to the system of linear inequalities, it is easier for us to use graphical method. This is simply done by plotting the points and determine the coordinate at which both inequalities intersect.

From the graph of the system of linear inequalities, the solution to this is (1, 4) which is option E

Kindly find attached graph below

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Since the tank is filled up to 3/4 of its maximum volume and this represents 14.4 liters of water, we have the following equation:

where V represents the total volume of the tank. Since we have the measure of the width and the length in cm, we can convert 14.4 in cm^3 to get the following:

Now, we know that the formula for the volume of a rectangular prism is:

where w,l and h represent the width length and height respectively. Substituting the values that we have,we get the following equation:

therefore, the height of the tank is 24 cm

Answer:

279.05649m³

Step-by-step explanation:

Circumference = 2πr

6 = 2πr

6/2π = r

r = 9.424777961

Area = πr²

Area = π(9.424777961²)

Area = 279.05649m³

Answer:

the product of the decimal equivalents of all discount in the series

The length of each diagonal of rectangle WXYZ is: 4 units

Given rectangle WXYZ, the diagonals are ZX and WY.

ZX = WY

24x - 8 = -18x + 13

24x + 18x = 8 + 13

42x = 21

x = 0.5

Length of each diagonal:

ZX = 24x - 8

ZX = 24(0.5) - 8

ZX = 4

Therefore, the length of each diagonal of rectangle WXYZ is: 4 units

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Equation of the ellipse is x²/4  +  y²/1  = 1

Given ellipse has major axis at x- axis i.e it is stretched more in the x- axis or horizontal axis.

When horizontal axis is the major axis the standard form of an ellipse equation is

x²/a²  +  y²/b²  =  1     ( a>b )

a² = square of the x co-ordinate at x- axis.

b² = square of the y co- ordinate at y - axis.

Co- ordinates of x- axis - (-2,0) and (2,0).

Co- ordinates of y- axis - (0,-1) and (0,1).

Substituting the values of a² and b² in the standard form of ellipse equation.

a²= 4

b² = 1

Equation of ellipse = x²/2²  +  y²/1²  =  1

                               =  x²/4   +  y²/1   =  1  

Hence the required equation of ellipse having x-axis as major axis is

x²/4   +   y²/1  =  1 .

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Answer:

1.5

Step-by-step explanation:

Thats rounded.

Answer:

\(\frac{8}{x}\)

Step-by-step explanation:

what is the sum 3/x+9+5/x-9

\(\frac{3}{x} + 9 + \frac{5}{x} - 9 =\)     (add \(\frac{3}{x}\) and \(\frac{5}{x}\))

\(\frac{8}{x} + 9 - 9 =\)            (solve 9 - 9 = 0)

\(\frac{8}{x}\)                           ( your answer)

Answer:

33/9 would give a repeating decimal as a quotient.

Step-by-step explanation:

The quotient of 28/7 would be "4", and the quotient of "38/5" would be "7.6". "42/15" would be 2.8.

So that leaves 33/9, giving a quotient of "3.666666..."

Answer:

area of rectangle =length ×width

area of rectangle=12yd×15yd

area of rectangle=180yd²

Answer:

-0.750

Step-by-step explanation:

Answer:

(3)

x = 0

y = 3/7

(4)

x = 6

y = -11

Step-by-step explanation:

the beginning was right, but get mistake was then to add the 2 equations but the parts with the y terms she suddenly subtracted.

no, one operation for everything. and then maybe another operation (and again for everything present).

so, some would multiply by -2 and then truly add.

or, as we will do it now to refuse as much as possible from your friend's work, we multiply by 2 and then SUBTRACT !

5x + 7y = 3

3x + 14y = 6

multiply the first equation by 2 and then subtract the second one.

10x + 14y = 6

- 3x + 14y = 6

-----------------------

7x + 0 = 0

=>

x = 0

then we use this e.g. in the first equation to get y :

5×0 + 7y = 3

7y = 3

y = 3/7

10x + 3y = 27

3x - 5y = 73

let's go e.g. for 15y (multiply the fits by 5 and the second by 3)

50x + 15y = 135

+ 9x - 15y = 219

------------------------

59x + 0. = 354

59x = 354

x = 6

10×6 + 3y = 27

60 + 3y = 27

3y = -33

y = -11

You invested $12,000 in the company when you originally started it. Additionally, you borrowed $12,000 for a five-year (long-term) loan and paid back $2,018 of it.

Businesses, a noun in plural. a group of people who are connected or who have joined together. a guest or guests: We're having people over for dinner. a collection of individuals together for social purposes. association, camaraderie, and fellowship She is a lot of joy to be around.

The Old French word "compagnie," which was first used in the Salic code and meaning "one who eats bread with you," is where the English word "company" originates. To describe a "society, friendship, closeness, or body of troops," it was first used in 1150.

You invested $12,000 in the company when you originally started it. Additionally, you borrowed $12,000 for a five-year (long-term) loan and paid back $2,018 of it.

Total Amount to be when start the company is $12000 + $12000

= $24000

Out of which company owns land and a building worth $8,878 and equipment worth $4,230 and have retained $1,291 in earnings to be reinvested in the company, and you decided to put $1,000 of it aside for a long-term investment.

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Answer:

mean score of class B = 1778/25 = 71.12

Step-by-step explanation:

This was your question : Class A has 12 pupils and class B has 25 pupils. Both classes sit the same maths test. The mean score for class A is 80. The mean score for both classes is 74. What is the mean score (rounded to 2 DP) in the maths test for class B?

mean of class A = Σfx/Σf

mean of class A =  80

Σfx = 80 × 12 = 960

Mean score for both classes = 74

where

b = Σfx  of class B

960 + b/37 = 74

cross multiply

960 + b = 2738

b = 2738 - 960

b = 1778

mean score of class B = Σfx/Σf

Σfx = 1778

Σf = 25

Therefore,

1778/25 = 71.12