All tests for the first six chapters of a textbook had 20–30 questions. The chapter 7 test will be given tomorrow. What reasonable conclusion can you make?


The chapter 7 test will have exactly 25 questions on it.

The chapter 7 test will have less than 20 questions on it.

The chapter 7 test will have more than 30 questions on it.

The chapter 7 test will have 20–30 questions on it.

Answer: 35000

I hope this helps :) Can I get brainiest ?

Answer: 7

Step-by-step explanation:

i wish i knew why

The expression is simplified to give 2(9x + 2√3x - 5)

First, we need to know that surds are mathematical forms that can no longer be simplified to smaller forms

From the information given, we have that;

(2√3x - 2)(3√3x + 5)

expand the bracket, we get;

6√9x² + 5(2√3x) - 6√3x - 10

Find the square root factor

6(3x)  + 10√3x - 6√3x - 10

collect the like terms, we have;

18x + 4√3x - 10

Factorize the expression, we have;

2(9x + 2√3x - 5)

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Answer:

12

Step-by-step explanation:

Answer:

1) 12 boxes

2) 3, 6, 12

3) 12

4) 110 degrees

Step-by-step explanation:

1) Count the rectangles. Multiply the length of the rectangle in boxes to the width of rectangle in boxes.

Length: 4 boxes

Width: 3 boxes

4 x 3 = 12

12 boxes

2)

10% of 30 is 0.1 times 30.

0.1 x 30 = 30/10 = 3

20% of 30 is 0.2 times 20.

0.2 x 30 = 30/5 = 6

40% of 30 is 0.4 times 20.

0.4 x 30 = 30/2.5 = 12

3) Count the cubes. Reminder there are 2 boxes you cannot see.

Top Layer: 2

Middle Layer: 4

Back Bottom Layer: 4

Front Bottom Layer: 2

2 + 4 + 4 + 2 = 12

4) I cannot see the semicircle clearly, but I do know that a circle is 360 degrees. A semicircle, half of a circle, is 180 degrees.

180/18 (The angle of each section)

10

11 Sections

10 x 11 = 110

Answer:

y= -1.5x-7 is the equation of the perpendicular line

Here's why:

when we convert 2x-3y=8 to standard form, we get y= 2/3x-8/3. This means the perpendicular line will have a slope of the negative reciprocal of the original one, so the perpendicular slope is -1.5. When we substitute the points (-2,-4) into the equation y=-1.5x+b, we get a b value of -7. So the perpendicular line equation is y= -1.5x-7. You can't the parallel line equation with the points (-2,-4) as it is part of the line 2x-3y=8.

Answer:

4/1000

Step-by-step explanation:

Answer:b

Step-by-step explanation:

Answer:66

Step-by-step explanation:

After solving for x plug your answer back in

Answer:

25x + 35(2x) = 380

25x + 70x = 380

95x = 380 so

x = 4

then i think that mean it might be 8 then im not completly sure

Answer:

Total volume equals V1 - V2

\(v = \pi {r}^{2} h\)

\(v = 12\pi {r1}^{2} - 12\pi {r2}^{2} \)

where:

r1 = radius 1

r2 = radius 2

Step-by-step explanation:

\(r1 \\ v1 = 12\pi {3.5}^{2} \: is \: approx. \: 461.81 {cm}^{3} \)

\(r2 \\ v2 = 12\pi {3.3}^{2} \: is \: approx. \: 410.54 {cm}^{3} \)

Total Volume v is

\(461.81 - 410.54 = 51.27 {cm}^{3} \)

Answer:

D.

Step-by-step explanation:

7500 * 6% = 450 which would just barely be enough to get paid the same amount as the fixed salary.

hopefully this helps

Answer: B. statistic

Step-by-step explanation: A characteristic, usually a numerical value, which describes a sample, is called a statistic.

Step-by-step explanation:

sub in the given values (aka sub slope = -2/5 and point (-2, 3)):

y - 3 = -2/5(x - (-2))

y - 3 = -2/5x - 4/5

y = -2/5x + 11/5

This is a question on coordinate geometry. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

Answer:

y = - 2x -10

Step-by-step explanation:

y = -2x + 1    Slope , m = -2    parallel slope is the same

point slope form of new line

 (y - -4)= -2 ( x - -3)

y = -2x -10

The answer should be: False, True, True.

ANOVA is an acronym for Analysis of Variance, which is a statistical method used to determine whether there is a significant difference between the means of three or more groups. In this context, if we assume a 95% confidence level, we can say that there is a significant difference in performance generally across all groups if the p-value is less than 0.05.

If the p-value is greater than 0.05, we cannot reject the null hypothesis, which states that there is no significant difference between the means of the groups. Therefore, the statement is false because we cannot determine whether there is a significant difference in performance across all groups based on the given information.

The t-test is a statistical method used to determine whether there is a significant difference between the means of two groups. In this context, if there is a significant difference in performance between the two highest-performing groups, the p-value would be less than 0.05, which indicates that we can reject the null hypothesis and conclude that there is a significant difference between the means of the two groups. Therefore, the statement is true.

Similarly, if there is a significant difference in performance between the two lowest-performing groups, the p-value would be less than 0.05, which indicates that we can reject the null hypothesis and conclude that there is a significant difference between the means of the two groups. Therefore, the statement is also true.

In summary, we cannot determine whether there is a significant difference in performance generally across all groups based on the given information. However, there is a significant difference in performance between the two highest-performing groups, and there is a significant difference in performance between the two lowest-performing groups. The answer should be: False, True, True.

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Option c. 2

Among the given targets, two targets are correctly described:

Regarding chemical pesticide use, the target is to reduce it by 50% by 2050. This aligns with the vision presented in the Green Food System Strategy.

In terms of chemical fertilizers, the target is to reduce the use of chemical fertilizers produced in Japan from fossil fuels by 30% by 2050. This target is also consistent with the strategy's vision.

The remaining two targets are not correctly described:

The target of expanding the organic market and increasing the ratio of organic farming to arable land to 30% (1 million hectares) by 2050 is not mentioned in the given options.

The target of reducing household food loss by half from the FY2000 level by 2030 is also not mentioned in the given options.

Therefore, the correct answer is option c. 2, as two of the targets are accurately described in the provided options.

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Answer:

x = 80°

Step-by-step explanation:

To find x, we need to create an equation.

Recall that the sum of all the 4 interior angles of a quadrilateral = 360°.

Therefore:

m<B + m<A + m<C + m<P = 360°

m<B = 20° (given)

m<C = 20° (given)

m<A = ½*x = x/2 (inscribed angle theorem)

m<P = (360 - x)°

Plug in the values and solve for x

\( 20 + \frac{x}{2} + 20 + (360 - x) = 360 \)

\( 20 + \frac{x}{2} + 20 + 360 - x = 360 \)

Collect like terms

\( 20 + 20 + 360 + \frac{x}{2} - x = 360 \)

\( 400 + \frac{x}{2} - x = 360 \)

Subtract 400 from each side

\( 400 + \frac{x}{2} - x - 400 = 360 - 400 \)

\( \frac{x}{2} - x = -40 \)

\( \frac{x - 2x}{2} = -40 \)

\( \frac{-x}{2} = -40 \)

Multiply both sides by 2

\( \frac{-x}{2} \times 2 = -40 \times 2 \)

\( -x = -80 \)

Divide both sides by -1

\( \frac{-x}{-1} = \frac{-80}{-1} \)

\( x = 80 \)

The red arc or chord in the key of C, or the solution to the provided question based on the circle, is 11.

A chord is a piece of a straight line that connects two points on a circle's circumference. When it crosses the circle at two different locations, it is also occasionally referred to as a secant.

The following formula can be used to determine a chord's length:

chord length = 2*radius*sin(angle/2)

where angle is the central angle that the chord is subtended by, and radius is the radius of the circle. In geometry and trigonometry, chords are frequently used to compute circle properties including area, circumference, and arc length.

Since the circle P ≅ circle C

In circle P the radius of PN =7 and

chord LM = 11 with an angle 104°

And  In circle C  the radius =7 and Circle and chord QR are both making the same angle. P = 104°

So the circle P ≅ circle C

The red arc or chord in C is consequently 11.

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Sometimes we start to lose faith, in those moments we think that no one loves us when they do, they care about us too. It's just your head messing with you. It's like saying "I'm depressed" but you're really not. it's just that you keep saying is that your brain starts believing it. Most of the time it's you losing faith. Which is completely normal and everyone in their life will once feel that way. That's why people often decide to end life way too soon. They don't know it's only going to last some time. It's going to be hard of course but it will soon have to come to an end, and when it does you will feel free and you will be able to enjoy life the way you are supposed to.

hope that helps.

Answer:

Step-by-step explanation: You have to split the shape up into smaller shapes

Answer:

27 m^2

Step-by-step explanation:

Area of first rectangle:

5 * 1 = 5

Area of second rectangle:

7 * 1 = 7

Area of third rectangle:

5 * 3 = 15

The addition of each area:

5 + 7 + 15 = 27

This means that the area of this figure is 27 m^2

Abilities and altitudes are two individual differences that are generally reliable indicators of the likelihood of system error.

The ability of an individual to effectively use a system is a reliable indicator of the likelihood of system errors. People who are less experienced and less knowledgeable about the system are more likely to make mistakes, which can lead to system errors.

In addition, an individual's attitude towards the system can also have an effect. People who are more anxious or frustrated while using the system may make more errors due to a lack of concentration or incorrect assumptions.

Finally, an individual's susceptibility to stress can also play a role in how likely they are to make mistakes while using the system as stress can lead to a lack of focus and poor decision-making. Knowing these two human individual differences can help to predict the likelihood of system errors and help to reduce the risk of them occurring.

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Answer: it should be 17.5

15+20 = 35

35/2 = 17.5 -----> mean of the two numbers

Answer:

ten thousands

Step-by-step explanation:

Ten thousandths are in one hundredth.

What is fraction?

Fractions represent parts of a whole. In mathematics, fractions are represented as numbers that define part of a whole. A fraction can be a part or subset of any quantity of a whole, and a whole can be any number, value, or thing.

All fractions consist of a numerator and a denominator, separated by horizontal bars called fraction bars.

The denominator indicates the number of parts into which the whole is divided. Placed at the bottom of the break below the break bar. The

counter indicates how many sections of the fraction are displayed or selected. Placed at the top of the break above the break bar.

As we know ,

one hundredth is  1/100

one thosandth is 1/1000

But now , 10 × 1/1000 = 1/100

This means that there are 10 thousandths in one hundredth.

Hence, ten thousandths are in one hundredth.

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True, conditional formulas can be used to exclude data from analysis if certain conditions are met. These formulas, often found in spreadsheet software and programming languages, allow you to set specific criteria that must be met in order for the data to be included or excluded from your analysis.

This can be useful in situations where you need to focus on specific subsets of data, or to remove outliers or irrelevant information from your dataset.

By incorporating conditional logic in your formulas, you can ensure that only relevant and useful data is included in your analysis, making it more accurate and efficient. Overall, the use of conditional formulas can greatly enhance your data analysis by providing a flexible and powerful tool to filter and process your data based on specific requirements.

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Answer:

\( = \frac{ - 8 - 1 - 3}{3} \\ = \frac{ - 12}{3} \\ = - 4\)

Answer:

(x+6)=3

Step-by-step explanation:

-3

The function f(x) = 8 - 7x is not a linear transformation.

To determine if the function f: ℝ → ℝ defined by f(x) = 8 - 7x is a linear transformation, we need to check if it satisfies the following two conditions:
1. Additivity: f(x + y) = f(x) + f(y) for all x, y ∈ ℝ
2. Homogeneity: f(cx) = cf(x) for all x ∈ ℝ and all scalars c

Check additivity
f(x + y) = 8 - 7(x + y) = 8 - 7x - 7y
f(x) + f(y) = (8 - 7x) + (8 - 7y) = 8 - 7x + 8 - 7y = 16 - 7x - 7y
Since f(x + y) ≠ f(x) + f(y), the function f does not satisfy additivity.

Therefore, the function f(x) = 8 - 7x is not a linear transformation.

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The solutions are:

a) A ∪ B = {a, b, c, d, e, f, g, i, o, u, t}

b) A ∩ B = {e, f}

c) A′ = {a, h, i, j, k, l, o, t, u, v, z}

d) A - B = {b, c, d, g}

a) A ∪ B: The union of sets A and B is the set that contains all the elements from both A and B without repetition.

A = {b, c, d, e, f, g}

B = {a, e, f, i, o, u, t}

A ∪ B = {a, b, c, d, e, f, g, i, o, u, t}

b) A ∩ B: The intersection of sets A and B is the set that contains only the elements that are common to both A and B.

A = {b, c, d, e, f, g}

B = {a, e, f, i, o, u, t}

A ∩ B = {e, f}

c) A′: The complement of set A refers to all the elements in the universal set U that are not in set A.

A = {b, c, d, e, f, g}

U = {a, b, c, d, e, f, g, h, i, j, k, l, o, t, u, v, z}

A′ = {a, h, i, j, k, l, o, t, u, v, z}

d) A - B: The set difference between A and B is the set that contains the elements that are in A but not in B.

A = {b, c, d, e, f, g}

B = {a, e, f, i, o, u, t}

A - B = {b, c, d, g}

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