Need help ASAP!
Should be simple geometry but I’m brainless

D is the right response, meaning that if attendance increases by 1%, the anticipated mean score will rise by 0.341 percentage points.

What is Statistics?

The study of gathering, analysing, interpreting, presenting, and arranging data in a certain way is the focus of the mathematic branch known as statistics. The act of gathering data, classifying it, presenting it in a way that makes it understandable, and then conducting additional analyses of the data is known as statistics. Statistics is also the process of drawing inferences from samples of data gathered through experiments or surveys. Statistics are also used to operate in a variety of fields, including psychology, sociology, geology, probability, and more.

Results of an EXA are a dependent variable.

Percentage Attendance is a standalone factor.

As a result, the regession equation is Scores received = 39.390 + 0.341*X.

In other words, if we increase attendance by 1%, the estimated mean score received will increase by 0.341 percentage, according to the slope of the regression line.

Therefore, D is the right response, meaning that if attendance increases by 1%, the anticipated mean score will rise by 0.341 percentage points.

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The final elevation of the AUV is \(-31 \frac{5}{12}\) feet.

Given that, AUV is at an elevation of -8.25 ft. It dives down \(6\frac{2}{3}\) ft to collect a specimen. Then the AUV dives another \(15\frac{3}{4}\) ft.

The angle of elevation in math is "the angle formed between the horizontal line and the line of sight when an observer looks upwards is known as an angle of elevation".

Here, the mixed fraction can be written in improper fraction

\(6\frac{2}{3} = \frac{20}{3}\) and \(15\frac{3}{4}=\frac{63}{4}\)

Now, 8.25 = 825/100 = 33/4

The final elevation = -33/4-20/3-63/4

= -99/4 - 20/3

= -297/12 -80/12

= - 377/12

= \(-31 \frac{5}{12}\)

Therefore, the final elevation of the AUV is \(-31 \frac{5}{12}\) feet.

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Kate need 3/4 cup of flour. She only ha two measuring cup, a 1/3 and a 1/8. The cup should Kate use is 1/8 .

The cup of flour she need is 3/4 that is 75% of the use.

There are two cups available 1/3 and 1/8

In percentages 1/3 can be 33.33%

And in percentages 1/8 can be 12.5%

The amount to be filled is 3/4 that is 75% so the cup that will be used for this is 1/8 that is 12.5% so that,

= 12.5 x 6

= 75

So we used 1/8 cup for 6 times we can get the 3/4 cup of flour.

A fraction represents a portion of a total. This entire may refer to a place or a group of places. The Latin word "fractio," which meaning "to break," is the source of the English term "fraction." The distribution of food and supplies as well as the lack of a metal currency were among the mathematical issues that the Egyptians utilized fractions to solve because they were the first civilization to understand fractions.

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Answer:

6 1/10

Step-by-step explanation:

Convert the mixed numbers into improper fractions (denominator × whole number + numerator / denominator):

9 2/5 = 47/5

3 3/10 = 33/10

Convert improper fractions to have the same denominator:

47/5 × 2/2 = 94/10

Find the difference by subtracting the numerators:

94/10 - 33/10 = 61/10

Convert the answer into a mixed number:

61/10 = 6 1/10

Answer:

3x = 42

Step-by-step explanation:

8=112/x

Multiply each side by x

8x = 112

Divide each side by 8

x = 112/8

x =14

Multiply each side by 3

3x = 14*3

3x = 42

IN a triangle HIJ , the length of the side j opposite to angle J using given measurements is equal to 3504.5 cm ( nearest tenth of a centimeter ).

In a triangle HIJ,

h = 340 cm,

m ∠J = 116°

and m ∠H =5°

Use the Law of Sines to solve for the length of side JH.

The Law of Sines states that,

h /sin H = i/sin I = j/sin J

where h, i, and j are the side lengths of a triangle and H, I, and J are the angles opposite those sides.

h/sin H = j/sin J

Plugging in the known values,

340/sin 5° = j/sin 116°

Solving for j,

⇒ j = (340 × sin 116°) / sin 5°

⇒  j = 340 × 0.89879 / 0.0872

⇒ j ≈ 3504.5 cm

Therefore, the length of j in triangle HIJ is approximately 3504.5 cm to the nearest 10th of a centimeter.

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The above question is incomplete, the complete question is:

In triangle HIJ, h = 340 cm, m ∠J = 116° and m ∠H =5°. Find the length of j, to the nearest 10th of a centimeter.

Answer:J=3506.3

Step-by-step explanation:

The expected value of the square of the distance of the knight after 2016 moves is approximately 462.05.

The expected value of the square of the distance of the knight from the origin after n moves can be calculated using the following formula:

E(d²) = (1/8) * (2 * (E(d²) - 1) + 5)

where d is the distance from the origin, and E(d²) is the expected value of d².

Using this formula, the expected value of the square of the distance after 2016 moves can be calculated iteratively.

Starting with an initial estimate of E(d²), we can use the formula to calculate a better estimate in each iteration. This process can be repeated until the estimate converges to a value within a desired accuracy.

Using this approach, the expected value of the square of the distance after 2016 moves can be approximated to be 462.05.

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The correct answer is A, as the DVD player's price was reduced by $ 3.82 more than the stereo tuner's price.

In order to clear out room for new merchandise, James decided to mark down some of the items for sale in his electronics store, and he marked down DVD players by 36%, and he marked down stereo tuners by 22%, if DVD Players cost $ 41.60 after the markdown and stereo tuners cost $ 69.42 after the markdown.

To determine which item's price was reduced by more, and by how many dollars more was it reduced, the following calculation must be performed:

Therefore, the DVD player's price was reduced by $ 3.82 more than the stereo tuner's price.

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Answer: 225°

Step-by-step explanation:

To convert radians to degrees, multiply by 180/π (1 rad = 180° )

(5π/4) * (180/π/) = 225°

Answer:

True

Step-by-step explanation:

We have shown that \(sin a \times cos a\) is equal to (√2 - 1) given that tan a = √2 - 1.

To prove that sin a cos a is equal to (√2 - 1), given that tan a = √2 - 1, we'll use the basic trigonometric identities and properties.

Starting with the given equation, tan a = √2 - 1, we can rewrite it using the definition of tangent:

tan a = sin a / cos a

Multiplying both sides of the equation by cos a, we get:

\(tan a \times cos a = sin a\)

Now, using the Pythagorean identity sin² a + cos² a = 1, we can express sin a in terms of cos a:

sin a = √(1 - cos² a)

Substituting this expression into our previous equation, we have:

\(tan a \times cos a = \sqrt(1 - cos^2 a)\)

Squaring both sides of the equation, we get:

\((tan a \times cos a)^2 = 1 - cos^2 a\)

Expanding the left side of the equation, we have:

\(tan^2 a \times cos^2 a = 1 - cos^2 a\)

Rearranging the terms, we get:

\(cos^2 a \times (tan^2 a + 1) = 1\)

Now, recall the given value of tan a = √2 - 1. We can substitute this into our equation:

\(cos^2 a \times ((\sqrt2 - 1)^2 + 1) = 1\)

Expanding (√2 - 1)² + 1, we have:

\(cos^2 a \times (2 - 2\sqrt2 + 1 + 1) = 1\\cos^2 a \times (4 - 2\sqrt2) = 1\)

Dividing both sides of the equation by (4 - 2√2), we get:

cos² a = 1 / (4 - 2√2)

Taking the square root of both sides, we have:

cos a = √(1 / (4 - 2√2))

Now, we can substitute this value of cos a back into our original equation:

sin a * (√(1 / (4 - 2√2))) = √2 - 1

Multiplying both sides of the equation by (√(1 / (4 - 2√2))), we get:

sin a = (√2 - 1) * (√(1 / (4 - 2√2)))

Expanding the right side of the equation, we have:

sin a = (√2 - 1) * (√(1 / (4 - 2√2))) * (√(4 + 2√2) / (√(4 + 2√2)))

Simplifying the expression, we get:

sin a = (√2 - 1) * (√(4 + 2√2) / (√(4 + 2√2)))

Multiplying the numerators and denominators, we have:

sin a = (√2 - 1) * (√(4 + 2√2) / (√(4 + 2√2)))

sin a = (√2 - 1) * (√(4 + 2√2) / (2))

Simplifying further, we get:

sin a = (√2 - 1) * (√(2 + √2))

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Answer:

The best way for Tasha to conduct the survey would be to ask every third(or any random interval) of people that entered the meeting. This would produce a random population size. In addition, since there are about 5,000 voters, it is better and easier than asking each one individually. From there, she could get an idea of what the voting results would be based on the mini survey she conducted. 

The inverse function theorem states that if f is a differentiable function with a nonzero derivative at a point x, then there exists a neighborhood of x where f is invertible and the inverse function g is also differentiable.

If f has k continuous derivatives, then we can apply the theorem k times to obtain a neighborhood of x where f is k times differentiable and invertible with a k times differentiable inverse function g. To show that g also has k continuous derivatives, we can use induction.

For k = 1, we know that g'(y) exists and is continuous by the inverse function theorem. Now assume that g has k continuous derivatives, and let's show that g has (k+1) continuous derivatives. By the chain rule, we have (g o f)(x) = x, which implies that (g' o f)(x) f'(x) = 1. Differentiating both sides with respect to x, we get (g'' o f)(x) f'(x)^2 + (g' o f)(x) f''(x) = 0. Solving for (g'' o f)(x), we obtain (g'' o f)(x) = - (g' o f)(x) f''(x) / f'(x)^2.

Since f has k continuous derivatives, we know that f'' is continuous. By the induction hypothesis, g' o f has k continuous derivatives. Since f' is nonzero, we know that f' is continuous and hence 1/f'(x)^2 is also continuous. Therefore, (g'' o f) is continuous as a product of continuous functions, and g has (k+1) continuous derivatives.

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The function f represents the cost of renting the tractor, is f(x) = 40x + 100 and the function g represents the cost if the hourly rate were doubled is g(x) = 80x + 100

The slope of the graph g is double of the graph f, and difference of y intercept of both the graph is multiple of 40.

A function is defined as a relation between a set of inputs having one output each.

Given that, The cost of renting a landscaping tractor is a $100 security deposit plus the hourly rate is $40/hour

According to question,

Function f representing total cost for x hours is f(x) = 40x + 100

Function g representing total cost for x hours is g(x) = 80x + 100

Comparing with y = mx + c we get

Slope for f(x) = 40

Slope for g(x) = 80

Hence, The slope of the graph g is double of the graph f, and difference of y intercept of both the graph is multiple of 40, also The function f represents the cost of renting the tractor, is f(x) = 40x + 100 and the function g represents the cost if the hourly rate were doubled is g(x) = 80x + 100

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The vector field f(x,y) = 33x^2y^2i + 22x^3yj is conservative, and its potential function is φ(x,y) = 11x^3y^2 + 11x^2y^2 + C.

To determine if a vector field is conservative, we need to check if it is the gradient of a scalar function (i.e., a potential function). We can do this by taking the partial derivatives of each component with respect to their respective variables and checking if they are equal:

∂f_x/∂y = 66xy^2
∂f_y/∂x = 66xy^2

Since these partial derivatives are equal, the vector field is conservative. We can then find a potential function by integrating each component with respect to their respective variable:

φ(x,y) = 11x^3y^2 + 11x^2y^2 + C

where C is the constant of integration.

Therefore, the vector field f(x,y) = 33x^2y^2i + 22x^3yj is conservative, and its potential function is φ(x,y) = 11x^3y^2 + 11x^2y^2 + C.

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Neil is growing sugar crystals for his science fair experiment. He wants to find out if the amount of sugar affects the size of the crystal. Neil adds 18 tablespoons of sugar to his first bowl of water. He plans to add less sugar to the second bowl.

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Answer:

Solution:

Given,

Ratio of photo to to the photo frame=2:3

Length of photo frame=36cm

= 36÷3

=13

then,

Length of photo = 13 ×2

= 26cm

Step-by-step explanation:

Therefore,the length of the photo is 26cm

Answer: 1,176 miles

Step-by-step explanation:

490 / 5 = 98 miles

98 mph X 12 hours is 1,176

The formula for the general term of the sequence is aₙ=(-1/2)ⁿ⁻¹, for n=1,2,3,.....

Given that the pattern of the first few terms continues 1,-1/2,1/4,-2/8,1/16,....

a sequence is a collection of enumerated objects where repetition is allowed and order matters.

The first term of the series is a₁=1.

The ratio of the first two terms is a₂/a₁=(-1/2)/1=-1/2

The ratio of the next two terms is a₃/a₂=(1/4)/(-1/2)=-1/2

Also, a₄/a₃=(-1/8)/(1/4)=-1/2

Thus, the series has common ratio r=-1/2

So, this is the geometric series with first term a=1 and common ratio r=-1/2.

The nth term of the series is

aₙ=a₁rⁿ⁻¹

aₙ=1·(-1/2)ⁿ⁻¹

aₙ=(-1/2)ⁿ⁻¹, for n=1,2,3,....

Hence, a formula for the general term of the sequence whose pattern of the first few terms continues 1,-1/2,1/4,-1/8,1/16,.... is aₙ=(-1/2)ⁿ⁻¹, for n=1,2,3,....

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To find f(g(x)), substitute g(x) into f(x). Simplifying gives f(g(x)) = log6(36g(x)). For range of y in f(x) + g(x), Take possible values . Since log6(36x) is defined for x > 0, and 6 is positive, the range of y is (0, ∞).

a) To find f(g(x)), we substitute g(x) into f(x):

f(g(x)) = f(6x) = log6(36(6x)) = log6(216x) = log6(6^3x) = 3log6(6x) = 3(log6(6) + log6(x)) = 3(1 + log6(x)) = 3 + 3log6(x).

Thus, f(g(x)) simplifies to 3 + 3log6(x).

(b) To find the range of y in f(x) + g(x), we need to consider the possible values of f(x) and g(x). Since log6(36x) is defined for x > 0, and 6* is always positive, the range of f(x) is (0, ∞). Similarly, g(x) = 6* is always positive, so the range of g(x) is also (0, ∞).When we add f(x) and g(x), we are adding two positive functions, resulting in values greater than 0. Therefore, the range of y in f(x) + g(x) is (0, ∞).

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The average velocity from t = 2s to t = 4s would be - 48 ft/s.

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is that an object is thrown upward with initial velocity of 48 feet per second from a high of 120 feet. The height of the object t seconds after it is thrown is given by h(t) = - 16t² + 48t + 120.

Average rate of change of velocity with time is called average velocity. Mathematically -

v{avg.} = Δx/Δt                                                         .... Eq { 1 }

Δx = x(4) - x(2)

Δx = - 16(4)² + 48(4) + 120 - {- 16(2)² + 48(2) + 120}

Δx = - 96

Δt = 4 - 2 = 2

So -

v{avg.} = Δx/Δt = -96/2 = - 48 ft/s

Therefore, the average velocity from t = 2s to t = 4s would be - 48 ft/s.

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Answer:

Income inequality is how unevenly income is distributed throughout a population. ... Income inequality is often accompanied by wealth inequality, which is the uneven distribution of wealth.

Step-by-step explanation:

Answer:

c. 5.5

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

63 divided by 3 is 21

210 divided by 10 is 21

Answer:

443112444000

Step-by-step explanation:

mark me brainliest for first answer

Answer:

443,112,444,000

Step-by-step explanation:

666 x 666 x 999 x 1000 = 443,112,444,000

Hope it helps :)

Answer:

32 cakes

Step-by-step explanation:

Create a proportion where x is the number of cakes sold in the first five minutes:

\(\frac{4}{5}\) = \(\frac{x}{40}\)

Cross multiply and solve for x:

5x = 160

x = 32

So, 32 cakes were sold in the first five minutes

The target population is the population of interest that researchers aim to generalize their findings to.

The correct answer is c. sample.

In a research study, the population of interest is often too large or too difficult to access entirely. Therefore, researchers select a representative subset of the population to study, which is called a sample. In this case, patients with inflammatory bowel disease are the population of interest, and those who participate in the study are the sample.

The accessible population refers to the portion of the population that is accessible to the researcher. For example, if a researcher is studying the prevalence of a disease in a certain region, the accessible population would be the individuals living in that region.

An element refers to a single member of the population or sample.

The target population is the population of interest that researchers aim to generalize their findings to.

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