2/5 x 6/7= I cant figure out this question.

Answer:

161.8cm²

Step-by-step explanation:

solve for height which is the opposite

opp=x

sin(theata)= opp./hyp.

sin23=x/30

x=30×sin23

x=11.72cm

height=opposite

height=11.72cm

base=adjacent

base=27.6cm

½of 27.6cm=13.8

13.8cm×11.72cm=161.74 (2d.p)

161.74 rounded to the nearest tenths= 161.7

I'm not sure if it's the answer but it's the closest thing to the options

Answer:

The division model is 15 ÷ 3

Step-by-step explanation:

Required

Interpret the division model

A division model is of the form: Dividend ÷ Divisor

In the attached figure (in the question), there are 5 vertical partitions.

This vertical partitions represents the result of the model

Also from the question attachment;

The horizontal partitions on the left, if traced to the right side of the diagram means that each vertical partition is divided into 3 and this represents the divisor of the model.

So, we have:

\(Divisor = 3\)

To get the quotient of the model, I'll make use of my attached file.

Counting the number of boxes, we can see that there are 15 boxes in total.

So, we have:

\(Dividend = 15\)

Hence, the division model is: 15 ÷ 3

Answer:

1/5 ÷ 3

Step-by-step explanation:

pick the answer If you trust me ._.

Answer:

Step-by-step explanation:

To get the y values all you need to do is substitute the x value in the equation y=-2/3x+7.

For example:

y=-2/3(-6)=7

-2/3x6=-4

-4+7=3

(-6,3)

You can double check your work by filling the x and y coordinates in the equation and when solved if it it true you know you were correct.

To get the x value, you need to fill in the y in the equation y=-2/3x+7

for example:

5=-2/3x+7

-2=-2/3x

3=x

(3,5)

y=-2/3x+7

y=-2/3(15)+7

y=-10+7

y=-3

(15,-3)

y=-2/3x+7

15=-2/3x+7

8=-2/3x

-12=x

(-12,15)

Answer:

35

Step-by-step explanation:

Answer:

Si quiere decir en un gráfico, busque cuántas unidades se eleva la coordenada y, a continuación, se ejecuta (izquierda o derecha).

Si algo no suena lo siento mi español es malo. ;--;

Answer:

A

Step-by-step explanation:

because the interior angles of a triangle have to add up to 180º. And A is the only one that adds up to 180.

Hope this helps! Have a great day!

Answer: y = 1.2

Explanation:

To find the answer, we need to solve the equation for y.

So, subtracting 7.2 on both sides, we get:

Then, multiplying by -1 on both sides, we get:

Therefore, the answer is y = 1.2

The tax revenue generated from property taxes is often used to fund expressions public services such as schools, parks, and infrastructure projects in the local community.

In mathematics, you can multiply, divide, add, or subtract. An expression is constructed as follows: Number, expression, and mathematical operator A mathematical expression is made up of numbers, variables, and functions (such as addition, subtraction, multiplication or division etc.) It is possible to contrast expressions and phrases. An expression or algebraic expression is any mathematical statement that has variables, integers, and an arithmetic operation between them. For example, the expression 4m + 5 has the terms 4m and 5, as well as the provided expression's variable m, all separated by the arithmetic sign +. The calculation of property tax is typically based on the assessed value of the property and the tax rate set by the local government. The assessed value is determined by a government-appointed assessor who evaluates the value of the property based on factors such as its location, size, age, and condition. The tax rate is then applied to the assessed value to determine the amount of tax owed by the property owner. The tax revenue generated from property taxes is often used to fund public services such as schools, parks, and infrastructure projects in the local community.

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There are 50 predicted rolls for 5 in 300 times of rolls.

A probability is a number that reflects the chance or likelihood that a particular event will occur.

Given that, Janet rolls a 6-sided number cube 300 times,

Probability = (Favourable Outcomes)/(Possible Outcomes)

Favourable Outcomes: 5 (1 total)

Possible Outcomes: 1,2,3,4,5,6 (6 total)

Probability of a 5 in any given roll of a die = 1/6

1/6x300 = 50 = 50 predicted roll with 5.

Hence, There are 50 predicted rolls for 5 in 300 times of rolls.

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The area of sector and perimeter of the sector are 29.04 cm² and 21.12 cm respectively.

The area of the shaded region is 53.81π cm².

The exact area of the shaded region is 3π - 4 - 2√2 cm².

To find the area and perimeter of a sector, we use the formulas:

Area of sector = (θ/2) * r²

Perimeter of sector = r + r + θ * r

Using these formulas, we can find the area and perimeter of the sector with r=4cm and θ=4.53 radians:

Area of sector = (4.53/2) * 4²

Area of sector  = 29.04 cm²

Perimeter of sector = 4 + 4 + 4.53 * 4

Perimeter of sector = 21.12 cm

To find the area of the shaded region in the sector with r = 12 cm and θ = 1.5 radians, we need to subtract the area of the triangle from the area of the sector.

The angle of the triangle is:

180° - (θ * 180°/π) = 180° - (1.5 * 180°/π)

The angle of the triangle = 68.66°

The radius of the sector is r=12cm, and the central angle is θ=1.5 radians. The area of the sector = (θ/2) * r^2 = (1.5/2) * 12^2 * π

The area of the sector = 81π cm^2

To find the height of the triangle, we can use the sine function:

sin(68.66°) = h / 12

h = 12 * sin(68.66°) = 11.03 cm (rounded to two decimal places)

The base of the triangle is the chord of the sector, which has length:

2 * r * sin(θ/2) = 2 * 12 * sin(1.5/2)

length = 10.28 cm (rounded to two decimal places)

The area of the triangle = (1/2) * base * height = (1/2) * 10.28 * 11.03

The area of the triangle = 56.66 cm²

The area of the shaded region is:

Area of sector - Area of triangle = 81π - 56.66

The area of the shaded region = 53.81π cm²

To find the exact area of the shaded region in the circle with centre O and radius OA=2√2, we first need to find the radius OB. We can use the cosine rule to find the length of OB:

OB^2 = OA^2 + AB^2 - 2 * OA * AB * cos(BOA)

OB^2 = (2√2)^2 + 2^2 - 2 * 2√2 * 2 * cos(135°)

OB^2 = 8 + 4√2

So the radius OB is √(8 + 4√2).

The angle of the sector OAB is:

135° * π/180° = 3π/4 radians

The area of the sector OAB is:

(3π/4) * (2√2)^2 / 2 = 3π cm^2

The area of triangle OAB = (1/2) * OA * OB * sin(OAB) = (1/2) * 2√2 * √(8 + 4√2) * sin(135°)

The area of triangle OAB = (4 + 2√2) cm²

The area of the shaded region = Area of sector OAB - Area of triangle OAB

The area of the shaded region = 3π - (4 + 2√2)

Area of the shaded region = 3π - 4 - 2√2 cm^2

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Answer:

The door

Step-by-step explanation:

2) Slope = 5.75

  y - intercept = 56

4) Slope = -2/3

  y - intercept = 3.

What is the slope-intercept form?

The slope-intercept form is a way of writing the equation of a line in the form y = mx + b, where m is the slope of the line and b is the y-intercept. The slope is the measure of the steepness of the line, while the y-intercept is the point where the line crosses the y-axis.

2) The equation for the cost, C, of printing t-shirts with a fixed cost of $56 and a cost of $5.75 per t-shirt is:

C = 5.75t + 56

where t is the number of t-shirts printed.

The slope of this equation is the coefficient of t, which is 5.75.

slope = 5.75

The y-intercept is the value of the dependent variable (C) when the independent variable (t) is zero. In this case, when no t-shirts are printed, the cost is simply the fixed cost of $56.

y-intercept = 56

4)

To find the slope of the given data set, we can use the formula:

slope = (change in y) / (change in x)

If we choose the first and last points, we get:

slope = (y2 - y1) / (x2 - x1) = (-1 - 7) / (6 - (-6)) = -8 / 12 = -2/3

The y-intercept is the value of y when x is zero. Looking at the data set, we can see that when x is zero, y is 3.

y-intercept = 3

Hence,

2) Slope = 5.75

  y - intercept = 56

4) Slope = -2/3

  y - intercept = 3.

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The graph shows that the function is decreasing and non-linear on the interval (-2, 0).

Non-linear is a term used to describe a system or process which does not follow a straight line path. This could mean that the output of the system is not directly proportional to the input, or that the system is not able to be described in terms of linear equations. Non-linear systems may be chaotic, random, or just more complex than linear systems. Non-linear systems are usually more difficult to predict and analyze, as they are not as straightforward as linear systems. Examples of non-linear systems include neural networks, chaotic systems, and non-linear programming.

This is because on this interval the graph is sloping downwards, indicating a decrease in the function, and the graph is not linear, as it is a curved line.

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Answer:

0.0778 = 7.78% probability that the average age at death of these nine participants will exceed 68 years

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \(\mu\) and standard deviation \(\sigma\), the zscore of a measure X is given by:

\(Z = \frac{X - \mu}{\sigma}\)

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \(\mu\) and standard deviation \(\sigma\), the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Approximately normal with mean equal to 66.3 years and standard deviation equal to 3.6 years.

This means that \(\mu = 66.3, \sigma = 3.6\)

Sample of 9:

This means that \(n = 9, s = \frac{3.6}{\sqrt{9}} = 1.2\)

What is the probability that the average age at death of these nine participants will exceed 68 years?

This is 1 subtracted by the pvalue of Z when X = 68. So

\(Z = \frac{X - \mu}{\sigma}\)

By the Central Limit Theorem

\(Z = \frac{X - \mu}{s}\)

\(Z = \frac{68 - 66.3}{1.2}\)

\(Z = 1.42\)

\(Z = 1.42\) has a pvalue of 0.9222

1 - 0.9222 = 0.0778

0.0778 = 7.78% probability that the average age at death of these nine participants will exceed 68 years

Answer:

Amount of chromosones human have is 46

Step-by-step explanation:

23 from ur father 23 from your mother

I'm not sure i understand your questions though

Answer:

The 95% confidence interval for the proportion of all shoppers during the year whose visit was because of a coupon they'd received in the mail is (0.2016, 0.2694)

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \(\pi\), and a confidence level of \(1-\alpha\), we have the following confidence interval of proportions.

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which

z is the zscore that has a pvalue of \(1 - \frac{\alpha}{2}\).

For this problem, we have that:

\(n = 603, \pi = \frac{142}{603} = 0.2355\)

95% confidence level

So \(\alpha = 0.05\), z is the value of Z that has a pvalue of \(1 - \frac{0.05}{2} = 0.975\), so \(Z = 1.96\).

The lower limit of this interval is:

\(\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2355 - 1.96\sqrt{\frac{0.2355*0.7645}{603}} = 0.2016\)

The upper limit of this interval is:

\(\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2355 + 1.96\sqrt{\frac{0.2355*0.7645}{603}} = 0.2694\)

The 95% confidence interval for the proportion of all shoppers during the year whose visit was because of a coupon they'd received in the mail is (0.2016, 0.2694)

Answer:

im pretty sure its the first

Step-by-step explanation:

Answer:

B. -3(4x + 1) (x - 4)

Step-by-step explanation:

Out of the other answer choices, "B," is the only that factorizes correctly and ends up with the correct factorization (It already gives you the break-down of the trinomial).

However, if you're unsure about the answer, you can always take the end result: -3(4x + 1) (x - 4), and multiply it together to see if you can end up with the original trinomial: \(-12x^2 + 45x + 12\)

Answer:

Step 1: Write your hypotheses and plan your research design

Step 2: Collect data from a sample

Step 3: Summarize your data with descriptive statistics

Step 4: Test hypotheses or make estimates with inferential statistics

Step 5: Interpret your results

Step-by-step explanation:

Answer:

Rewrite the function as an equation. y= 3/7 Use the slope-intercept form to find the slope and y-intercept. Slope: 0 Y-intercept: 3/7 Hope this can help

Step-by-step explanation:

Answer:

the approximate value of m is -0.12, indicating that the value of Ty's computer decreases by 0.12 (or 12%) each year.

Step-by-step explanation:

o express this depreciation rate as a slope in the equation y = mx + b, we need to determine how much the value changes (the "rise") for each year (the "run").

Since the value decreases by 12% per year, the slope (m) would be -12%. However, we need to express the slope as a decimal, so we divide -12% by 100 to convert it to a decimal:

m = -12% / 100 = -0.12

Answer:

A System

5x+y=3

4x−7y=8

B System

5x+y=3​

x+8y=−5

1) How can we get System B from System A?

CORRECT (SELECTED)

Replace one equation with the sum/difference of both equations

2) Based on the previous answer, are the systems equivalent? In other words, do they have the same solution?

CORRECT (SELECTED)

Yes

Answer:

x = 2

Step-by-step explanation:

8 = 6x + -2x

8 = 4x

8 = 4x

4 4

2 = x

Answer:

b

Step-by-step explanation:

it's b if I am wrong I am sorry

The cheaper option is buying a single bottle of 128 fluid ounces for $40.

Here we know that you need gallon of fertilizer to cover a lawn. And we also know the prices for the fertilizers, we know that 128fluid ounces cost 40 dollars while 16 fluid ounces costs $11.

First, let's do a change of units to gallons to fluid ounces, we know that:

1 gall = 128 fluid ounces.

Then if you need exactly one gallon, the cheaper option is just buy one of the bottles of 128 fluid ounces for $40, because if you buy the smaller ones you will need to buy:

128/16 = 8 of these, for a total of 8*$11 = $88

While if you buy the big bottle you only spend $40.

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To add or subtract 2 or more matrices, they have to be in the same dimensions

The dimensions of a matrix are

The number of rows m and the number of column n

It is m x n

So the matrix of dimensions 4 x 5 has m = 4 and n = 5

The dimensions 5 x 3 means m = 5 and n = 3

Number of rows not equal

Number of columns not equal

Then we can NOT add them

The answer is NO