What is the angle of rotation from figure D to figure D’? Assume that the center of rotation is the origin. A. 270° clockwise B. 90° clockwise C. 90° counterclockwise D. 180° counterclockwise

The ability to order items in a sequence, such as longest to shortest, is known as Seriation.

Seriation is a cognitive skill that involves arranging objects, events, or ideas in a particular order or sequence. It is a crucial aspect of cognitive development and is typically acquired during early childhood. Seriation is the ability to mentally order objects along a quantitative dimension, such as size, weight, or length.

Seriation involves comparing and ordering items based on specific criteria. For example, if given a group of objects of different lengths, a child who has developed seriation skills will be able to arrange the objects in order from shortest to longest. Similarly, if given a group of numbers, a child who has developed seriation skills will be able to arrange them in order from smallest to largest.

Seriation is an important cognitive skill that is used in various areas of life, including academic, professional, and personal domains. It allows individuals to organize information and ideas in a logical and meaningful way, which can facilitate more efficient processing and understanding of complex concepts.

Overall, seriation is a fundamental cognitive skill that plays a crucial role in various aspects of life, including problem-solving, decision-making, and organization. It is an essential skill that supports the development of higher-order thinking skills, such as analysis, evaluation, and synthesis.

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Therefore, the margin of error for the 90% confidence interval is 1.32. This means that you can be 90% confident that the true population mean falls within a range of 1.32 around the sample mean.

To find the margin of error for a 90% confidence interval, you can use the following formula:

margin of error = z * standard deviation / sqrt(n)

Where z is the z-score for the desired level of confidence (in this case, 90%), standard deviation is the standard deviation of the sample, and n is the sample size (in this case, 120).

Plugging in the values, you get:

margin of error = 1.645 * 9.1 / sqrt(120)

= 1.645 * 9.1 / 11.1

= 14.72 / 11.1

= 1.32

The middle of the set of values is represented by the mean. This value is the mean of all values in the data collection. In statistics, the middle quantity, referred to as the mean, is known as the average.

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The margin error is 2.82%.

A margin of error is a statistical measurement that accounts for the difference between actual and projected results in a random survey sample

The margin of error for a sample proportion is given by

\(z_{\alpha /2}\sqrt{ \frac{p(1-p)}{n} }\)

where p is the sample proportion and n is the sample size.

Consider the  confidence level of 95%, then  \(z_{\alpha /2}\) = 1.96

p = 53% = 0.53 and n =1200

Thus, Margin of error=

\(z_{\alpha /2}\sqrt{ \frac{p(1-p)}{n} }\)

=1.96\(\sqrt{ \frac{0.53(1-0.53)}{1200} }\)

=1.96*0.0144

=0.0282

= 2.82%

Hence, margin error is  2.82%.

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Answer:

  (a)  (a² +3a -1)(a² -3a -1)

Step-by-step explanation:

The constant term of the product of the factors will be equal to the product of their constants. Since you want that product to be +1, the signs of the factor constants must be the same. That eliminates choices (c) and (d).

__

To tell which of choices (a) and (b) is correct, we can compute the squared term in their product. Let's do it in a generic way, with the constant (±1) being represented by "c".

We want the a² term in the product ...

  (a² +3a +c)(a² -3a +c)

That term will be the result of multiplying both sets of first and last terms, and adding the product of the middle terms:

  (a²·c) +(a²·c) -9a² = a²(2c-9)

So, we want the factor (2c-9) to be -11, which means c=-1, not +1.

The correct factorization of the given expression is ...

  (a² +3a -1)(a² -3a -1) . . . . matches choice A

Answer:

The answer is probably D since red and blue combined is 30 which is greater than green and yellow combined which is 20

Answer:

D

Step-by-step explanation:

Answer:

when two vertical angles intersect, the opposites always have the measure. 2 is opposite to 3 and 1 is opposite to 4. they should have the same measures.

Step-by-step explanation:

Step-by-step explanation:

First, you want to find the unit rate, or how much Han earns per hour

You can do this by setting up an equation

x= amount earned per hour

4x= 33          Initial equation

4x/4 = 33/4   Isolating the variable

x = 33/4 = 8 1/4 = 8.25    The unit rate

Now you want to set up a new equation to find out how much he makes for 7 hours

x= amount earned per hour

y = total amount earned

y = 7x    Initial equation

y = 7 ( 8.25)   Substitution

y = 57.75  The answer

Han earns $57.75 for every 7 hours

Checking the answer....

y = 7x

57.75 = 7x    Substitute y instead

57.75/7 = 7x/7

8.25 = x

Your answer should be correct

Hope this helps!!!

Step-by-step explanation:

2 will not be a value of either inequalities.

Using both inequalities, x has to be greater than 2, and less than 2. x can't equal 2, the inequalities would be incorrect.

If the inequalities were;

\(x \geq 2 \\ x \leq 2\)

Then, x can equal any value.

Answer:

I say its b

Step-by-step explanation:

Answer:

c = 0

Step-by-step explanation:

Step 1: Write equation

15 - 5(4c - 7) = 50

Step 2: Solve for c

Step 3: Check

Plug in c to verify it's a solution.

15 - 5(4(0) - 7) = 50

15 - 5(-7) = 50

15 + 35 = 50

50 = 50

Based on the 2017 data, post-secondary teachers, dental hygienists, and librarians are three options that are expected to earn between $55,000 and $74,999 based on their median pay.

The median pay is the midpoint of a set of salaries, where half of the workers earn less and half earn more. In this case, the link provided takes us to the 2017 median pay column for various occupations.

After reviewing the data, it appears that post-secondary teachers, dental hygienists, and librarians are expected to earn between $55,000 and $74,999 based on their median pay. The median pay for post-secondary teachers is $76,000, while the median pay for dental hygienists is $74,070. Lastly, the median pay for librarians is $59,050.

It's important to note that the median pay for carpenters, firefighters, and childcare workers are below $55,000. This means that half of the workers in these occupations earn less than $55,000 per year.

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The height of the cone in discuss as required to be determined is; 16.38 cm.

Since the height of the cone is three times the length of the diameter of its base;

h = 3d;

d = h/3

Therefore, radius,

r = d/2

r = h/3 ÷ 2

multiply by the reciprocal of 2

r = h/3 × 1/2

r = h / 6.

Volume of a cone, V = (1/3) πr²h

128 = (1/3) × (22/7) × (h³/36)

h³ = 4398.55

h = 16.38 cm.

Ultimately, the height of the cone is; 16.38 cm.

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A quadratic inequality represented by the graph is y≥x²+2x+2.

The vertex from the given graph is (-1, 1) and the coordinate point is (1, 5).

A parabola refers to an equation of a curve, such that a point on the curve is equidistant from a fixed point, and a fixed line.

The general equation of a parabola is: y = a(x-h)² + k or x = a(y-k)² +h, where (h, k) denotes the vertex.

Substitute (x, y)=(1, 5) and (h, k)=(-1, 1) in y = a(x-h)² + k, we get

5=a(1+1)²+1

⇒ 4=4a

⇒ a=1

Substitute a=1 and (h, k)=(-1, 1) in y = a(x-h)² + k, we get

y=1(x+1)²+1

⇒ y=1(x²+2x+1)+1

⇒ y=x²+2x+2

⇒ y≥x²+2x+2

Therefore, a quadratic inequality represented by the graph is y≥x²+2x+2.

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Answer: is it 208 or not i'm doing the same test

Step-by-step explanation:

To convert 4.42 kg into pounds, the starting place in the conversion process is to understand the conversion factor between kilograms and pounds.

The conversion factor between kilograms (kg) and pounds (lbs) is 1 kg = 2.20462 lbs. This means that 1 kilogram is equal to approximately 2.20462 pounds. To convert a given weight in kilograms to pounds, you need to multiply the weight in kilograms by the conversion factor.

In this case, you want to convert 4.42 kg into pounds. The starting place in the conversion process is to use the conversion factor:

4.42 kg * 2.20462 lbs/kg = 9.7314044 lbs

By multiplying the given weight in kilograms (4.42 kg) by the conversion factor (2.20462 lbs/kg), you find that 4.42 kg is approximately equal to 9.7314044 pounds. Therefore, when converting kilograms to pounds, the first step is to apply the appropriate conversion factor by multiplying the weight in kilograms by the conversion factor.

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Answer:

0.8

Step-by-step explanation:

The conversion of a fraction number with denominator 5 and numerator 2 , 2/5 in decimals is equals to the 0.4 value.

A decimal number can be defined as a number whose whole number part and fractional part are separated by a decimal point. Writing 2/5 as a decimal number by converting the denominator to powers of 10. We multiply the numerator and denominator by a number so that the denominator is a power of 10.

2/5 = (2 × 2) / (5 × 2) = 4/10

Now move the decimal point to the left as many places as there are zeros in the denominator, which is a power of 10.

The decimal moved one place to the left because the denominator was 10. Therefore, 4/10 = 0.4. Hence, required value is 0.4.

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Answer:

−3−(−7) = 4

Step-by-step explanation:

The given expression is

We know that (-)(-)=(+). So, the given expression can be written as

-3+7

4

We need to find the value of the given expression using a number line.

Two numbers are -3 and -7.

Plot these two numbers on the number line.

Now, start form -7 and jump up to -3 on the number line and count the jumps, then the number of jumps is the answer.

From the below figure it is clear that the number of jumps between -7 and -3 is 4.

Therefore, the value of the given expression is 4.

Answer:

The answer might be C

Step-by-step explanation:

The graph hits the unit rate of (4,5) every time

Correct Me If I am Wrong

Answer:

x=42

Step-by-step explanation:

2(x-8)=68

Distribute the 2

2x-16=68

Use the addition property of equality (add 16 to both sides)

2x=68+16

2x=84

Use the division property of equality (divide both sides by 2)

x=84/2

x=42

Scalar quantities have only magnitude while vector quantities have both magnitude and direction The velocity of the westbound electric car traveling at 65mph on the M180 is a vector quantity since it has both magnitude and direction. Work done on an exercise bike is an example of a scalar quantity since it has only magnitude.

1. Scalar quantities have only magnitude while vector quantities have both magnitude and direction. Scalars have only magnitude while vectors have both magnitude and direction. Scalar quantities are physical quantities that only have magnitude while vector quantities are physical quantities that have magnitude and direction. Scalars are the quantity that can be described by a single real number while vectors are the quantities that need both direction and magnitude to describe them.

Scalar quantities only have magnitude while vector quantities have magnitude as well as direction. Scalar quantities have only one property, which is the magnitude, so they can be represented by only one number. The direction of the scalar quantity does not matter since they only represent magnitude. Vector quantities have magnitude and direction. Vector quantities can be represented by arrows in a diagram, and the length of the arrow represents the magnitude, while the direction of the arrow represents the direction. Examples of vector quantities include displacement, velocity, acceleration, force, and momentum.

2. Scalar (S) or vector (V):• Gases at a temperature of 45⁰K (S)• The gravitation field of Jupiter (V)• A westbound Electric car traveling at 65mph on the M180 (V)• 1.5KJ of work done on an exercise bike (S).

Scalar quantities are represented by a single value with no direction. Examples of scalar quantities are mass, temperature, distance, and time. The gravitation field of Jupiter is an example of a vector quantity since it has both direction and magnitude. A vector is described by both magnitude and direction. Examples of vector quantities include force, velocity, and acceleration. The velocity of the westbound electric car traveling at 65mph on the M180 is a vector quantity since it has both magnitude and direction. Work done on an exercise bike is an example of a scalar quantity since it has only magnitude.

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Answer:

18ft

Step-by-step explanation:

Formula of circumference * r x r x 3.14* or d x 3.14*

:DDD And ye glad I could help!

Answer: 28 - 8

Step-by-step explanation:

Adding a negative number is the same as subtracting its absolute value (:

Answer:

Gustavo used a simulation where the data is quantitative’

Answer:

x=(5c-3b)/a

Step-by-step explanation:

ax+3b=5c

or,ax=5c-3b

x=(5c-3b)/a

Answer: 20 minutes

Step-by-step explanation:

An hour is 60 minutes, so (1/3)(60 min) = 20 min.

Answer:

It changed by 41 people.

Step-by-step explanation:

Answer:

30÷3=10

Step-by-step explanation:

thank you for the pints I hope you have a good day :)

Answer:

30 divided by 3 is 10

Step-by-step explanation:

I don't know why you put the extra divided