Can someone pls help

The percent of pages that Olivia has read following this equation (blank/220 = x/blank) is:

65%

The percentage of pages that Olivia has not read is:

35%

The proportion of pages read can be obtained by inputting the total number of pages read to the full count of pages in the book. This gives:

40 + 60 + 43 = 143.

We now divide this sum by the number of pages in the books, 220.

143/220

Converting to percentage gives:

143/220 × 100

65%

The percentage of pages that Olivia has not read can be obtained thus:

220 - 143/ 220

= 0.35 × 100

= 35%

So, the percentages are in the order of 65% and 35%.

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Ok, so

We know that the initial amount which is deposited is $30,000.

For this problem, it is useful to use an exponential function because we know that we're working with a compounded interest.

So, we'll write:

Now, the question ask to us to find how much money is in the ccount after ten years. For this, we just replace t=10 in our equation. Like this,

Therefore, there will be $42317.96 in the account.

Answer: Figure 2 (The rectangle)

Hope this helps :)

Step-by-step explanation:

Quadrilaterals are shapes that have 4 (connected) sides

Answer:

the second figure

Step-by-step explanation:

Quadrilaterals have a maximum and minimum of four

In a case whereby the metal piece has four ridges of equal size on the top. The width of the piece is 3cm the volume of the work is \(450cm^3\)

Based on the provided fiqure, we will need to find te volume of the rectangle, then substract from th volume of the four triangular prism

The volume of the rectangle can be epresed as ;

2*3*10 = \(600cm^3\)

The volume of the four triangular prism can be expressed as

20/4 = 5cm          10-5= 5cm

\(1/2 * 5 * 5*3*4 = 150cm^3\)

\(600- 150 =450 cm^3\)

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The answer to number 2 is- no it's not a right triangle

the answer to number 3 is- yes it is a right triangle

The previous year's total revenue for the small business was approximately $25,130.43.

The total revenue of the small business the previous year can be calculated by finding the value that is 15% more than the revenue of $28,900 this year.

To determine the previous year's revenue, we can set up the equation:

Previous Year's Revenue + 15% of Previous Year's Revenue = $28,900

Let's solve the equation to find the previous year's revenue:

Let x be the previous year's revenue.

x + 0.15x = $28,900

Combining like terms, we have:

1.15x = $28,900

Dividing both sides by 1.15, we get:

x = $28,900 / 1.15 ≈ $25,130.43

Therefore, the previous year's total revenue for the small business was approximately $25,130.43.

We set up the equation by adding 15% of the previous year's revenue to the previous year's revenue. This is done to find the total revenue that is 15% more than the previous year's revenue. By solving the equation, we find that the previous year's revenue was approximately $25,130.43.

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Answer:

s₃ = 4n² - 6

Step-by-step explanation:

The perimeter is the sum of the three sides. The unknown side will be a variable expression.

Perimeter = s₁ + s₂ + s₃

s₃ = Perimeter - s₁ - s₂

s₃ = (-6n² - 2) - (-8n² + 2) - (-2n² + 2)

s₃ = -6n² - 2 + 8n² - 2 + 2n² - 2

s₃ = 4n² - 6

You can check this by summing s₁, s₂, and s₃ and you should get the given perimeter as your answer.

Answer:

  13,551,737

Step-by-step explanation:

You want the sum of the first 13 terms of the geometric sequence with first term 17, and successive terms 51, 153, ....

The common ratio is found by dividing a sequence term by the one before it:

  r = 51/17 = 3

The common ratio is 3.

The index of the 13th term of the sequence is n = 13.

The sum of n terms of a geometric sequence with first term a1 and common ratio r is ...

  Sn = a1·(r^n -1)/(r -1)

For a1 = 17, r = 3, and n = 13, the sum is ...

  \(S_{13}=17\cdot\dfrac{3^{13}-1}{3-1}=17\cdot\dfrac{1594322}{2}=\boxed{13,\!551,\!737}\)

The slope of a line perpendicular to the line whose equation is x - 2y = -8 is -2.

In Mathematics and Geometry, perpendicular lines are two (2) lines that intersect or meet each other at an angle of 90° (right angles).

From the information provided above, the slope for the equation of line m is given  by:

x - 2y = -8

2y = x + 8

y = x/2 + 4

slope (m) of line m = 1/2

In Mathematics and Geometry, a condition that is true for two lines to be perpendicular is given by:

m₁ × m₂ = -1

1/2 × m₂ = -1

m₂ = -2

Slope, m₂ of perpendicular line = -2

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It will take 15 days for the hair to grow from 12mm to 16.5mm

By "average rate" in this context, we mean the typical or usual amount of hair growth per unit of time, which is often measured in millimeters per day. This rate can vary slightly depending on factors such as age, gender, genetics, diet, and overall health.

Let's first find out how much the hair needs to grow by subtracting its initial length (12mm) from its target length (16.5mm):

16.5mm - 12mm = 4.5mm

Now we can divide this growth by the average rate of hair growth to find the number of days it will take to grow this much:

4.5mm ÷ 0.3mm/day = 15 days

Therefore, it will take 15 days for the hair to grow from 12mm to 16.5mm.

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Answer:

The 1st one

Step-by-step explanation:

Answer:

The ANOVA table and the solution are attached below

Answer:

Step-by-step explanation:

There are two ways to do this.

1. You could make an accurate diagram and measure R. This works but the computer won't like it. However you will know if you are correct. An answer ± 2 degrees would tell you that you are likely correct.

2. The second way is to find <C. Similarity guarantees that <C and <R are equal. The adjacent side to angle C is the second longest line. The second longest line in PQR is the adjacent side of <R.

Naturally we will use the second method, but you ought to try the first method. It's cumbersome but it will teach you how to read the values of triangles to make clear the trig functions.

Tan(C) = opposite over adjacent

Tan(C) = 7 /  9

Tan(C) = .77777777...

<C = tan-1(0.7777777...)

<C = 37.87

<C = 37.9

According to the concept of algebraic expression and arithmetic, the correct answers are A) Number of adults = N - 25. B) Number of adults when N = 124: 124 - 25 = 99

A) Let's denote the number of children as N. Since there are 25 fewer adults than children, the number of adults can be expressed as N - 25.

B) If there are 124 children, we substitute N with 124 in the expression from part A. Thus, the number of adults would be 124 - 25 = 99.

To arrive at these answers, we used the given information that there are "N" children and 25 fewer adults than children. By substituting the value of N, we determined the number of adults in terms of N and then calculated the specific number of adults when N is equal to 124.

Note: The given question is incomplete. The complete question is:

Some adults and children are watching a musical. there are 'N' number of children. There are 25 fewer adults than children.

A) find the number of adults in terms of 'N'.

B) if there are 124 children how many adults are there?​

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The maximum area of a Norman window with a perimeter of 9 feet is 81π/4 square feet.

To find the maximum area of a Norman window with a given perimeter, we can use calculus. Let's denote the radius of the semicircle as r and the height of the rectangular window as h.The perimeter of the Norman window consists of the circumference of the semicircle and the sum of all four sides of the rectangular window. Therefore, we have the equation:

πr + 2h = 9We also know that the area of the Norman window is the sum of the area of the semicircle and the area of the rectangle, given by:

A = (πr^2)/2 + rh

To find the maximum area, we need to express the area function A in terms of a single variable. We can do this by substituting r from the perimeter equation:

r = (9 - 2h)/(π)

Now we can rewrite the area function in terms of h only:

A = (π/2) * ((9 - 2h)/(π))^2 + h * (9 - 2h)/(π)

Simplifying this equation, we get:

A = (1/2)(9h - h^2/π)

To find the maximum area, we differentiate the area function with respect to h, set it equal to zero, and solve for h:

dA/dh = 9/2 - h/π = 0

Solving this equation, we find:h = 9π/2

Substituting this value of h back into the area function, we get:

A = (1/2)(9 * 9π/2 - (9π/2)^2/π) = (81π/2 - 81π/4) = 81π/4

Therefore, the maximum area of a Norman window with a perimeter of 9 feet is 81π/4 square feet.

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Answer:333

Step-by-step explanation:53533535

\((2^6 \times 2^4) \div 2^2\\\\=2^{6+4} \div 2^2\\\\=2^{10} \div 2^2\\\\=2^{10} \times \dfrac 1{2^2}\\\\=2^{10-2}\\\\=2^8\)

By answering the presented question, we may conclude that Therefore, the x-intercept of the function is also x = -1.

In mathematics, a function seems to be a link between two sets of numbers in which each member of the first set (known as the domain) corresponds to a specific member of the second set (called the range). In other words, a function takes input from one collection and creates output from another. The variable x has frequently been used to represent inputs, whereas the variable y has been used to represent outputs. A formula or a graph can be used to represent a function. For example, the formula y = 2x + 1 depicts a functional form in which each value of x generates a unique value of y.

To sketch the graph of the function f(x) = √(x + 2) - 1, we can start by identifying the zeros and x-intercepts of the function:

Zeros:

To find the zeros of the function, we set f(x) = 0 and solve for x:

\(0 = \sqrt(x + 2) - 1\\1 = \sqrt(x + 2)\\1^2 = (\sqrt(x + 2))^2\\1 = x + 2\\x = -1\\\)

Therefore, the zero of the function is x = -1.

x-intercept:

To find the x-intercept of the function, we set y = 0 and solve for x:

\(0 = \sqrt(x + 2) - 1\\1 = \sqrt(x + 2)\\1^2 = (\sqrt(x + 2))^2\\1 = x + 2\\x = -1\\\)

Therefore, the x-intercept of the function is also x = -1.

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The total path length covered in 5 second will be 69.45 meter.

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given is a train going at 70 km/h must reduce its speed to 30 km/h when passing over a bridge. It performs the operation in five seconds.

Using the first equation of motion -

v = u + at

(30 x 5/18) = (70 x 5/18) + 5a

(30 x 5/18) - (70 x 5/18)  = 5a

- (5/18) x 40 = 5a

- (200/18) = 5a

a = - (40/18)

a = - 2.22 m/s²

S = 19.44 x 5 + 0.5 x (- 2.22) x 25

S = 97.2 - 27.75

S = 69.45 meter

Therefore, the total path length covered in 5 second will be 69.45 meter.

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[Question translation in english -

A train going at 70 km/h must reduce its speed to 30 km/h when passing over a bridge if it performs the operation in five seconds what total path has been traveled in that time.]

Answer:

2/15

Step-by-step explanation:

Answer:

2/15

Step-by-step explanation:

12 & 18 can be reduced to 2 & 3

25 & 5 can be reduced to 5 & 1

2/5 × 1/3 = 2/15

Answer:

Option A is the right answer mate...

Answer:

40

Step-by-step explanation:

\(8=2^3 \\ \\ 20=2^2 \times 5 \\ \\ \lcm(8,20)=2^3 \times 5=40\)

Answer:

311.3 feet

Step-by-step explanation:

1 yard = 3 feet

Therefore, 103.76 yards = 311.28 feet (by multiplying 103.76 by 3)

Rounding to the nearest tenth gives us 311.3 feet.

Answer:

6.32

Step-by-step explanation:

They gave you everything you need in the question - just plug the x and y values in where they showed you. (2, 5) is your (x1, y1) and (-4, 7) is your (x2, y2)