If a1 = 3 and An = 4 an - 1 - 4 then find the value of

Answer:

10

Step-by-step explanation:

(x-3)² = 7²

so x-3 = 7

x =10

The answer indicates that it will take 2.38 yrs to for population to treble in size.

A population is any large group that has at least one resource is common. People do not make up all populations. Population numbers can include, but aren't limited to, people, animals, groups, organizations, buildings, houses, trucks, farms, and things.

Let's call the population after it has tripled "P_triple". Then:

P(t) = 3P(0) = 3 * 95

P_triple = 285

We want to find the time t such that P(t) = 285, so we'll set the two expressions equal to each other:

95 (1.53)^t = 285

Dividing both sides by 95:

(1.53)^t = 3

Taking the natural logarithm of both sides:

t = log(3) / log(1.53)

Approximating using a calculator:

t = approximately 2.38 years

So it will take approximately 2.38 years for the population to triple in size.

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The radius sign () with a little three (3) above it, followed by the number, can be used to represent a number's cube root. For instance, 8's cube root is represented by the symbol 8.

The number that remains the same after being multiplied twice by itself is known as a number's cube root. It can be written as the radical sign () followed by the number and a little three (3) above it. For instance, 8's cube root is represented by the symbol 8. When 8 is multiplied by itself twice (8 x 8 x 8), the result is 8; this is known as "the cube root of 8." In a similar way, 27's cube root can be expressed as 27, which, when multiplied by itself twice, also equals 27. Exponential expressions can also be used to represent cube roots. Because 8's cube root is expressed as 23, the result of multiplying 8 by itself three times (2 x 2 x 2) is also 8. Similarly, 33 can be used to represent the cube root of 27.

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The final distance of the port from the ship is 75.63 km and the final bearing of the port from the ship is 263.57° using cosine and sine rules.

Considering the triangle formed by the ship ∆ABC where A, B and C are the points for; the port, where the ship changes its course, and its final bearing. The final distance "a" of the port from the ship is calculated with cosine rule as follows;

a² = b² + c² - 2(b)(c)cosA

a² = 40² + 70² - 2(40)(70)cos82°

a² = 1600 + 4900 - 5600cos82°

a² = 5720.63 {take square root of both sides}

a = 75.63

For the triangle ABC, by sine rule;

a/sinA = b/sinB = c/sinC

75.63/sin82° = 70/sinC

C = sin⁻¹(70 × sin82°/75.63) {by cross multiplication}

C = 66.43

angle C = 60 + 6.43 {60° is an alternate angle with angle 30° at the point B where the ship chenged course and 6.43° is a complementary angle at the 3rd quadrant of point C}

The final bearing of the port from the ship is calculated as;

180° + (90 - 6.43)° = 263.57°

Therefore, the final distance of the port from the ship is 75.63 km and the final bearing of the port from the ship is 263.57° using cosine and sine rules.

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The compound experiment is the probability of heads on a coin and 4 on a number cube which is P = ( 1/12 )

The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible

Probability = number of desirable outcomes / total number of possible outcomes

The value of probability lies between 0 and 1

Given data ,

Let the probability be represented as P

Now , the equation will be

a)

The probability of heads on a coin and 4 on a number cube

Now , the probability of tossing a heads on a coin = 1/2

The probability of rolling a 4 on number cube = 1/6

So , the compound probability P = ( 1/2 ) ( 1/6 )

On simplifying the equation , we get

P = 1/12

b)

The probability of 3 on a six spaced spinner

The value of P = 1/6

c)

The probability of rolling a 6 on a number cube

The value of P = 1/6

d)

The probability of drawing a King from a regular deck of cards

The value of P = 4/52

On simplifying the equation , we get

The value of P = 1/13

Hence , the compound probability is P = 1/12

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Answer:

Step-by-step explanation:

given two positive numbers a and b such that b < a. it turns out that a/b is the same as the ratio (a+ b)/a=b/(a-b)

Integers are a set of counting numbers (positive and negative), along with zero, that can be written without a fractional component. As mentioned above, an integer can be either positive, negative or zero.

All natural numbers are also integers that start from 1 and end at infinity.

All whole numbers are also integers, starting from 0 and ending at infinity.

We have two positive numbers a and b and b less a . the ratio of a and b is the same of (a+b)/a .

a:b=(a+b):a

[tex]a^2=b(a+b)\\[/tex]

(a+b)(a-b)=ab

(a+b):a=b:(a-b)

The ratio of a/b = b:(a+b).

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To purchase all the paint, it will cost £ 186.89.

-Following are the formulas for calculating the trapezium's area:

[tex]& A=\frac{1}{2}(a+b) h \\[/tex]

[tex]& a \| b \text { dimensions } \\[/tex]

[tex]& \therefore A=\frac{1}{2}(16+10) \times 7.6 \\[/tex]

[tex]& =98.8 \mathrm{~m}^2[/tex]

-Since 1 litre of paint covers an area of 1.9 sq m, we divide the area of the trapezium by this and multiply by the cost per litre to get the overall cost:

[tex]$& \text { Paint Used }=\frac{\text { Area }}{\text { Paint } / m^2} \\[/tex]

[tex]$& =\frac{98.8}{1.9} \\[/tex]

[tex]$& =52 \text { litres }[/tex]

-We are given that each 5 I tin of paint costs $£ 16.99$. We therefore divide the paint used by 5 and multiply by $£ 16.99$ :

[tex]$& =\frac{52}{5} \\[/tex]

[tex]$& =10.4-. > 11 \text { tins } \\[/tex]

[tex]$& \text { Cost }=11 \times 16.99 \\[/tex]

= £ 186.89

Hence, it will cost £ 186.89 to buy all the paint

Paint is only bought in 5 I tins. Hence, any fractional bit will necessitate the purchase of the whole 5 I tin

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Mr. Estes paid $136,000 for the SUV after the discount was applied.

Markdown percentage is defined as the decrease in the price which is calculated as a percent of the selling price.

We have the formula,

Selling price = (1 - markdown rate) Original price

Here,

Markdown percentage = 15%

Markdown rate = 15/100 = 0.15

Original price of the car = $160,000

Selling price = (1 - 0.15) × 160,000

                     = 0.85 × 160,000

                     = 136,000

Hence the selling price of the car is $136,000.

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Answer:

A. The graph of the stock value would start at a low point on the left side of the graph and gradually increase in value as it moves to the right. The line representing the stock value would start to level off and then suddenly drop, representing the quick decrease in value. The line would then level off again and stay the same for the rest of the day.

B. If the stock gradually decreased during the middle of the day, the line on the graph would start at a high point, gradually decrease in value, and then level off.

Check the picture below.

[tex]\textit{Law of Cosines}\\\\ \cfrac{a^2+b^2-c^2}{2ab}=\cos(C)\implies \cos^{-1}\left(\cfrac{a^2+b^2-c^2}{2ab}\right)=\measuredangle C \\\\[-0.35em] ~\dotfill\\\\ \cos^{-1}\left(\cfrac{21^2+32^2-26^2}{2(21)(32)}\right)=\measuredangle J \implies \cos^{-1}\left(\cfrac{ 789 }{ 1344}\right)=\measuredangle J\implies \boxed{54.1^o\approx \measuredangle J}[/tex]

Make sure your calculator is in Degree mode.

Answer:

17/7

Step-by-step explanation:

2 3/7 = 17/7

2 times 7 = 14 + 3 = 17/7

So, the answer is 17/7

Answer: Option D

Step-by-step explanation: Given: -2x + 14 + 10x = 34

-2x + 10x + 14 = 34

8x + 14 = 34

8x = 34 - 14

8x = 20

divide both sides by 8

8x/8 = 20/8

x = 5/2

$20 more money the band members need to raise.

What is the total amount?

Total refers to an entire or complete amount, and the verb "to total" means to combine two numbers or to destroy anything. In mathematics, you add integers to get the total; the outcome is the total. The result of adding 8 and 8 is 16. A car that has been totaled in an accident is irreparably damaged.

Here, we have

Given: Band members are selling magazines to raise $150 for a school dance.

= 150 - (25 + 45 + 10 +25 + 15 + 10)

= 150 - 130

= 20

Hence, $20 more money the band members need to raise.

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Answer:

  C. 45 × 45

Step-by-step explanation:

You want to know the expanded form of 45 squared.

A square is signified by an exponent of 2:

  45 squared = 45²

The exponent tells you the number of times the base appears as a factor in the product:

  45² = 45 × 45 . . . . . . . 45 is a factor 2 times in the product

__

Additional comment

The value "45 squared" is the area of a square of side length 45.

The value "45 cubed" is the volume of a cube of side length 45.

The area of the shaded region is equal to sin(2).

The shaded region is a sector of a circle with radius r and central angle 2. To find the area of the shaded region, we first need to find the radius of the circle, which is given by r2 = sin(2). Taking the square root of both sides, we get r = sqrt(sin(2)).

Next, we need to find the area of the sector, which is given by:

A = (r^2 * 2) / 2 = r^2

Substituting r = sqrt(sin(2)), we get:

A = (sqrt(sin(2)))^2 = sin(2)

Therefore, the area of the shaded region is equal to sin(2).

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QUESTION CORRECTION: Find The Area Of The Shaded Region. R² = Sin (2Ф).

The definite integral of x * ln(x) from [tex]x = e^{1/8} \ to \ x = \frac{e^{-1/6}}{2}[/tex]

To find the definite integral of x * ln(x) from x = [tex]e^{(1/8)}[/tex] to x = [tex]e^{(1/6)[/tex] it can be evaluated using integration by substitution.

Let u = ln(x), then du/dx = 1/x and dx = [tex]e^u du[/tex]. The integral becomes:

[tex]\int e^{(1/8)} e^{(1/6) }x \ ln(x) dx = \int e^{(1/8)} e^{(1/6)} e^u u du[/tex]

= [[tex]e^{(2u)[/tex]/2] evaluated at u = ln([tex]e^{(1/6)[/tex]) and u = ln([tex]e^{(1/8)}[/tex]), which gives the final result:

[e[tex]^{(2u)[/tex]/2] evaluated at u = 1/6 - 1/8 = -1/12

[tex]= e^{(-2/12)}/2 = e^{(-1/6)}/2[/tex]

The integral is a mathematical concept that refers to the sum of the values of a function over a specific interval or region. It is a tool used to calculate the area under a curve or the total change in a quantity over a given interval.

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In a consistent system with more variables than equations, the augmented column of the reduced row echelon form (rref) contains the solution set of the system of linear equations.

The Reduced Row Echelon Form denoted as "rref"  is a matrix representation of the system in which the leading non-zero entry in each row is 1 and is called the pivot. The pivots in the rref correspond to the basic variables in the solution set, and the non-pivot variables are free variables.

In the augmented column of "rref" , the entries corresponding to the pivot columns give the values of the basic variables in the solution set, while the entries corresponding to the non-pivot columns give the coefficients of the free variables,  free variables can take any value and do not affect the solution set,

Therefore, information contained in augmented column of the rref gives the values of the basic variables and the coefficients of the free variables in the solution set of the system.

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The declaration won't work because the animation name property is missing.

Declaration : linear 5s 3 alternate-reverse

The absence of the animation name attribute prevents the declaration from functioning.

The name of the animation A CSS attribute specifies the names of one or more keyframes at-rules that describe the animation to be applied to an element.

Several keyframe at-rules are supplied as a list of names separated by commas. No properties are animated if the provided name does not match any keyframe at-rule. When setting all animation properties at once, it is frequently convenient to use the shortcut property animation.

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The number of monic polynomials of degree n in Fp[x] that do not take on the value 0 for x ∈ Fp is pⁿ - 1.

The number of monic polynomials of degree n in Fp[x] is pⁿ. In this case, "monic" means that the coefficient of xⁿ is 1.

In Fp[x], there are p possible values for the coefficient of each power of x, from x⁰ to xⁿ. Hence, there are pⁿ possible polynomials of degree n.

The number of polynomials that do not take on the value 0 for x ∈ Fp is pⁿ - 1 because if a polynomial is zero for all values of x in Fp, then it must be the zero polynomial. The zero polynomial is not counted because it is not monic, as it has a coefficient of 0 for the xⁿ term.

So, the number of monic polynomials of degree n in Fp[x] that do not take on the value 0 for x ∈ Fp is pⁿ - 1.

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Answer:0.32$

Step-by-step explanation:2.56/8=0.32$

Answer:

x = arccos(sqrt((1 + sin(x))/2)) + 2npi or x = pi - arccos(sqrt((1 + sin(x))/2)) + 2npi

Step-by-step explanation:

cos^2(x) - sin^2(x) = sin(x) can be rewritten as cos^2(x) = sin^2(x) + sin(x)

Using the identity sin^2(x) + cos^2(x) = 1, we can simplify the equation as

cos^2(x) = 1 - cos^2(x) + sin(x)

Solving for cos^2(x), we get

cos^2(x) = (1 + sin(x))/2

Therefore, cos(x) = sqrt((1 + sin(x))/2) or cos(x) = -sqrt((1 + sin(x))/2)

To find the possible values of x, we need to find the values of sin(x) that satisfy this equation.

For the domain [0, 2pi), the range of sin(x) is [-1, 1], so we have:

cos(x) = sqrt((1 + sin(x))/2) for -1 <= sin(x) < 1

cos(x) = -sqrt((1 + sin(x))/2) for -1 <= sin(x) < 1

So, the solution is

x = arccos(sqrt((1 + sin(x))/2)) + 2npi or x = pi - arccos(sqrt((1 + sin(x))/2)) + 2npi

where n is an integer.

We know Ms. Langlois has 26 pencils.

We DO NOT know the amount of pencils that Mr.Cox has, we can use the variable "x" to represent Mr.Cox's number of pencils.

An expression is just an expression, not an equation, so it DOES NOT require a "="

The expression could be represented as 26+x

Answer:

46

Step-by-step explanation:

18+21+12+12+23=86

22×6=132

132-86=46

46

Answer:

x = 12.5 degree

y = 220 degree

Step-by-step explanation:

The 1/2y is equal to the 110-degree angles, so to find the y, we take

110 times 2 = 220. So, the answer for y is 220.

The (4x + 20) and 1/2y must add up to 180 degrees. We know one is 110 degrees, so the (4x + 20) must be equal to 70 degrees.

4x + 20 = 70

4x = 50

x = 12.5 degree

So, x = 12.5 degrees and y = 220 degrees.

A polynomial is even if each term is an even function. f ( x ) = 2 x 4 − 3 x 2 − 5 f(x)=2x^4-3x^2-5 f(x)=2x4−3x2−5. Odd

What is odd and even polynomial?

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On solving the provided question we can say that the sides are = 10, 9 , 8 perimeter of the triangle will be = 10 + 9 + 9/ 3 = 27 / 3 = 9 units

A triangle is a polygon since it has three sides and three vertices. It is one of the basic geometric shapes. The name given to a triangle containing the vertices A, B, and C is Triangle ABC. A unique plane and triangle in Euclidean geometry are discovered when the three points are not collinear. Three sides and three corners define a triangle as a polygon. The triangle's corners are defined as the locations where the three sides converge. 180 degrees is the result of multiplying three triangle angles.

the sides are = 10, 9 , 8

perimeter of the triangle will be = 10 + 9 + 9/ 3 = 27 / 3 = 9 units

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Introduction:

Probability is a measure of the likelihood that a given event will occur. In this scenario, the event of interest is the fuel tank being empty, given the observation that the battery is flat. Evaluating the probability of this event involves finding the relationship between the fuel tank and the battery, and using this information to calculate the probability that the fuel tank is empty.

Detailed explanation:

To evaluate the probability of the fuel tank being empty given the observation that the battery is flat, we need to use Bayes' theorem. Bayes' theorem states that the probability of event A given event B can be calculated as follows:

P(A|B) = P(B|A) * P(A) / P(B)

Where P(A|B) is the probability of event A given event B, P(B|A) is the probability of event B given event A, P(A) is the probability of event A, and P(B) is the probability of event B.

In this scenario, event A is the fuel tank being empty, and event B is the battery being flat. To calculate the probability of the fuel tank being empty given the battery is flat, we need to find the values of P(B|A), P(A), and P(B).

Suppose we have the following information:

P(A) = 0.1 (the probability that the fuel tank is empty)

P(B|A) = 0.8 (the probability that the battery is flat given that the fuel tank is empty)

P(B) = 0.05 (the probability that the battery is flat)

Using these values, we can calculate P(A|B) as follows:

P(A|B) = P(B|A) * P(A) / P(B) = 0.8 * 0.1 / 0.05 = 0.16

This means that the probability that the fuel tank is empty given the battery is flat is 0.16.

In conclusion, the probability that the fuel tank is empty given that the battery is flat is lower than the probability that the fuel tank is empty, which was 0.1. This suggests that having a flat battery decreases the likelihood that the fuel tank is empty.

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