A researcher studying koi fish collected data on three variables, A, B, and C. The following residual plots show the residual for a model for predicting each variable from the age of the fish.

A conclusion that a linear model between the variable and age is appropriate is supported by which plot or plots?
1.)A Only
2.)B Only
3.)C Only
4.)A and C only
5.)B and C only

Using the height and radius given, the surface area of the cylinder is 408.2m²

The surface area of a cylinder is the combined area of its curved surface (lateral surface) and its two circular bases. The formula for the surface area of a cylinder is:

A = 2πrh + 2πr²

where:

In the given question, the data are;

Substituting the value into the formula

A = 2π(5 * 8) + 2π(5)²

A = 408.2m²

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Survey 50 randomly selected seventh-grade students at each of the district’s middle schools. Then the correct option is A.

A sample is a group of clearly specified components. The number of items in a finite sample is denoted by a curly bracket.

The athletic director of a large school district with about 1,500 seventh-grade students in five different middle schools wants to know which sport is most popular among seventh graders.

The survey method is the best to use will be

Random sampling is the method of selecting the subset from the set to make a statical inference.

Survey 50 randomly selected seventh-grade students at each of the district’s middle schools.

Thus, the correct option is A.

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Answer: The value of x is 6

Step-by-step explanation:

Given:

11x = 66

To Find:

The value of x.

Solution:

11x = 66

x = 66/11

11 multiplied by 6 gives 66 therefore,

x = 6/1

The value of x is 600.

To find the value of x, we need to solve the equation: 11% of x = 66. To do this, we can set up the equation as: 0.11x = 66. We can solve for x by dividing both sides of the equation by 0.11: x = 66 / 0.11 = 600.

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Answer:

integrates by parts:

             U = x   dV = f''

            dU  = dx   V = f'

The integral becomes:

     x f'  - integral f' dx

 =   x  f'  -  f

limit as x->4 :   4 * f'(4) - f(4) = 4 * -3 -  7

                                  = -12-7 = -19

limit as x->1 : 1 * f'(1) - f(1) = 1 * 9 - 8 = 1

subtracting: -19-1 = -20

Step-by-step explanation:

Statement                                                                     Reason

1. m<AOB = 180 degrees                                   Angle on a straight line

2. m<AOE + m<EOF + m<FOB = m<AOB         supplementary angles

3. x + 2x + 34° + 20° = 180 degrees                 Substitution

4. x =  42 degrees                                             Algebra

x + 2x + 34° + 20° = 180 degrees   -  supplementary angles

3x + 54 = 180

3x = 180 - 54

3x = 126

x = 126 / 3

x = 42 degrees

This refers to angle formed by a straight line which is equal to 180 degrees.

This refers to angles whose sum is equal to 180 degrees. Sum of angles on a point on a straight line is equal to 180 degrees

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Answer:

  11.5

Step-by-step explanation:

Coordinate values and side lengths are multiplied by the dilation scale factor. (Angle values remain unchanged.)

  W'X' = (1/4)WX

  W'X' = (1/4)(46) = 11.5

Answer:

i think its the 4th one

"None of the choices are correct"

Answer:

5

Step-by-step explanation:

i squared 3 and 4 and added it together and got 25 than the square root of 25 is 5

D 231 = 46w can be used to solve for w, the number of white eggs used last week.

so correlation coefficient = σ^XY/σ^Xσ^Y = 1.225 / 1.36 = 0.9

Step-by-step explanation:                                                                          

a) We need to find the conditional p m f of X when Y = 1.

So, when Y = 1, there are only two X values: X =1 and X =2.

X can have any of the following values: 0, 1, 2, or 3                                                                                                        

so P(0) = 0/ 0.2 = 0          

P(1) = 0.1/(0.1+0.1) = 0.5

P(2) = 0.1/( 0.1+ 0.1) = 0.5

P(3) = 0/ 0.2 = 0

b)  The correlation coefficient of X and Y isρXY              

ρ^XY=(X,Y)=(X,Y)/σ^Xσ^Y=σ^XY/σ^Xσ^Y

We will calculate σ^X first by μ^x

f x(x) = 0.2; x = 0

= 0.2; x =1

= 0.2 ; x = 2

= 0.4 ; x = 3

μ^x = 0.2 * 0 + 0.2 * 1 + 0.2 * 2 + 0.4 * 3 = 1.8

σ^X^ 2 = 0.2 * 1.82 + 0.2 * 0.82 + 0.2 * 0.22 + 0.4 * 1.22 = 1.36

σ^X = 1.166

We will calculate σ^y first by μ^y

f^ x (X) = 0.2; y = 0

= 0.2; y =1

= 0.2 ; y= 2

= 0.4 ; y = 3

μ^y = 0.2 * 0 + 0.2 * 1 + 0.2 * 2 + 0.4 * 3 = 1.8

σ^y^ 2 = 0.2 * 1.82 + 0.2 * 0.82 + 0.2 * 0.22 + 0.4 * 1.22 = 1.36

σ^y = 1.166

Now we will calculate σ^XY

σ^2^XY = 0.4 * ( 3 - 1.8)* ( 3-1.8) + 0.2 *( 0 -1.8) * ( 0 - 1.8) + 0.1 * ( 1- 1.8) * ( 1- 1.8) + 0.1 * ( 2 -1.8) * ( 1 -1.8) + 0.1 * ( 1 - 1.8) * ( 2 - 1.8) + 0.1 * ( 2 - 1.8) * ( 2 - 1.8) = 1.26

σ^XY = 1.225        

so correlation coefficient = σ^XY/σ^Xσ^Y = 1.225 / 1.36 = 0.9

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Answer:

see explanation

Step-by-step explanation:

Given

x² , then when x = - 4

x² = - 4 × - 4 = + 16

[ the product of a negative and a negative results in a positive ]

The angle m∠JIX is 90 degrees.

IX is perpendicular to IJ. Therefore, angle m∠JIX is 90 degrees.

IG bisect CIJ. Hence,

m∠CIG ≅ m∠GIJ

Therefore,

m∠CIX = 150 degrees

Hence, let's find m∠JIX.

Therefore, m∠JIX is 90 degrees because IX is perpendicular to IJ. Perpendicular lines forms a right angle.

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The measure of angle m∠JIX is  estimated to be 90⁰.

You should understand that an angle is a figure formed by two straight lines or rays that meet at a common endpoint, called the vertex.

IX is perpendicular to IJ. Therefore, angle m∠JIX is 90⁰.

Frim the given parameters,

IG⊥CIJ.

But;  m∠CIG ≅ m∠GIJ

⇒ m∠CIX = 150⁰

Hence, let's find m∠JIX.

Therefore, m∠JIX is 90⁰ because IX is perpendicular to IJ. Perpendicular lines forms a right angle.

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Probabilities are used to determine the chance of an event.

The game is based on compound probability.

From the question, we have the following events.

When multiple events are involved in a probability, then such probability is a compound probability.

Hence, the game is based on compound probability.

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The shaded region that represents the subset of the students at North High School will be C.

Sets are groups of clearly specified components. The number of items in a finite set is denoted by a curly bracket.

John Venn introduced the Venn diagram in the 1880s, which is a type of diagram that displays the logical relationship between sets. The illustrations are used in probability, logic, statistics, linguistics, and computer science to demonstrate basic set connections and to teach rudimentary set theory.

The shaded region that represents the subset of the students at North High School who play sports OR make the honor roll will be given by the intersection region.

The shaded region that represents the subset of the students at North High School will be C.

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The amount cheaper is the car washes Malcolm orders than the car washes Martha's order is $13.

The correct answer choice is option B.

Malcolm's gift card = $50.

Cost Malcolm's car wash per visit = $7

Martha's gift card = $180

Cost Martha's car wash per visit = Difference between gift card balance of first and second visit

= $180 - $160

= $20

How cheap is the car washes Malcolm orders than the car washes Martha's order = $20 - $7

= $13

Therefore, Malcolm's car wash is cheaper than Martha's car wash by $13

The complete question is attached in the diagram.

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The six terms of the series 247 are 2, 2, 2, 2, 2, and 2.

To find the six terms of a series, we need to first understand what a series is. A series is defined as the sum of the terms of a sequence. A sequence is a set of numbers in a specific order.

Therefore, a series is a sum of terms from a sequence. There are different types of series, and they have different formulas for calculating their terms.In this case, we are required to find the six terms of the series 247. Since this is a finite series, we can use a formula to calculate the nth term of a finite series.

The formula is given as follows:Tn = a + (n - 1) dWhere Tn is the nth term of the series, a is the first term of the series, n is the number of terms in the series, and d is the common difference between the terms of the series.To find the six terms of the series 247, we need to know the value of a and d. In this case, we can see that the first term of the series is 2. Therefore, a = 2.

Since this is a constant series, we can see that the common difference between the terms is 0. Therefore, d = 0.Substituting these values in the formula, we get:T1 = a + (1 - 1) dT1 = 2 + 0T1 = 2T2 = a + (2 - 1) dT2 = 2 + 0T2 = 2T3 = a + (3 - 1) dT3 = 2 + 0T3 = 2T4 = a + (4 - 1) dT4 = 2 + 0T4 = 2T5 = a + (5 - 1) dT5 = 2 + 0T5 = 2T6 = a + (6 - 1) dT6 = 2 + 0T6 = 2.

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Answer:

1711

Step-by-step explanation:

\(4\cdot(14+8)^2-9\cdot(9-4)^2\\=4\cdot(22)^2-9\cdot(5)^2\\=4(484)-9(25)\\=1936-225\\=1711\)

Make sure to follow order of operations!

To find the angle between two vectors, you can use the dot product formula:

θ = arccos((u ⋅ v) / (||u|| × ||v||))

where u and v are the two vectors, ||u|| and ||v|| are the magnitudes of the vectors u and v, and ⋅ is the dot product.

In the first problem, you are given that u = 2i - 3j and v = 3i + 8j. To find the angle between these vectors, you can first find the dot product of u and v:

u ⋅ v = (2i - 3j) ⋅ (3i + 8j)

= (23) + (-38)

= 6 - 24

= -18

Next, you can find the magnitudes of u and v:

||u|| = √((22) + (-3-3)) = √(13)

||v|| = √((33) + (88)) = √(73)

Now you can use the dot product formula to find the angle between the vectors:

θ = arccos((-18) / (√(13) × √(73)))

= arccos(-18 / 961)

You can use a calculator to find the value of arccos(-18 / 961), which is approximately 125.75 degrees.

In the second problem, you are given that u = <2, -5, 3> and v = <5, 7, -9>. To find the angle between these vectors, you can follow the same process as before:

u ⋅ v = (25) + (-57) + (3×-9) = 10 - 35 - 27 = -52

||u|| = √((22) + (-5-5) + (33)) = √(34)

||v|| = √((55) + (77) + (-9-9)) = √(109)

θ = arccos((-52) / (√(34) × √(109)))

= arccos(-52 / 3706)

You can use a calculator to find the value of arccos(-52 / 3706), which is approximately 179.42 degrees.

So the answer to the first problem is 125.75 degrees, and the answer to the second problem is 179.42 degrees.

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Its 336 sorry if I'm wrong

Without more information about the specific situation (such as the height from which the bottle is dropped, the surface on which it is dropped, and so on), a value for p cannot be determined.

The probability of landing a bottle on the floor on any given try is a fixed value, typically represented by "p".

The probability that he will land the bottle on the floor on the tenth try is then given by:

P(tenth attempt landing) = (1 - p)9 * p

where (1 - p)9 represents the probability that he fails to land the bottle on the floor in the first nine attempts, and p represents the probability that he lands the bottle on the floor on the tenth attempt.

However, without more information about the specific situation (such as the height from which the bottle is dropped, the surface on which it is dropped, and so on), a value for p cannot be determined.

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Answer: 4

I’m sorry, I could not find any other methods except for finding the closest perfect square which was 2116. (46^2)

Answer:

k = 13The smallest zero or root is x = -10

Step-by-step explanation:

you can write "x^2" to mean "x squared"

f(x) = x^2+3x-10

f(x+5) = (x+5)^2+3(x+5)-10 ... replace every x with x+5

f(x+5) = (x^2+10x+25)+3(x+5)-10

f(x+5) = x^2+10x+25+3x+15-10

f(x+5) = x^2+13x+30

Compare this with x^2+kx+30 and we see that k = 13

Factor and solve the equation below

x^2+13x+30 = 0

(x+10)(x+3) = 0

x+10 = 0 or x+3 = 0

x = -10 or x = -3

The smallest zero is x = -10 as its the left-most value on a number line.

Answer: The answer would be No, Yes, No.

Step-by-step explanation:

Look at the grid, you can see that it has 100 units in all.

0.42 equals 21/50, so they are both wrong. The denominator would have to be 100. The only logical one would be the second one.

Answer:

the correct answer is truly

Step-by-step explanation:

STOP CHEATING ON THID APP

Answer:

  $142.32, profit on sale of the policy

Step-by-step explanation:

You want to know the expected value of a $280,000 life insurance policy sold for $270, if the probability the insured will live for the year is 0.999544.

The insurance company expects to have to pay the $280,000 death benefit for 0.000456 of the policies issued. That means their expected payout on any one policy is ...

  0.000456 × $280,000 = $127.68

The company gets a premium of $270 for the policy, so the expected value of the policy to the company is ...

  $270 -127.68 = $142.32

The expected value of the policy to the company is $142.32.

This represents its profit from sale of the policy.

__

Additional comment

Of course, the company has expenses related to the policy, perhaps including a commission to the agent selling it, and expenses related to handling claims. That is to say that not all of the difference between the premium and the average death benefit is actually profit. It is what might be called "contribution margin."

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Answer: x- intercept (0,-8)

Y- intercept (4,0)

Step-by-step explanation:

Answer:

a-)-12

b-)-15

Step-by-step explanation:

a-)(-10)-(-2)= -12

b-)(-10)-(-5)= -15

hope it helps(⁠ʘ⁠ᴗ⁠ʘ⁠✿⁠)

Answer:

MHMMMMM th e power of a powers property shows that to find the power of a power of a power multiple the exponents the little numbers in top and you dont have to add the base because there is no other base :_) lonely so we multiple it and get 5^8 4x2

Step-by-step explanation:

3rk2r

Answer:

4005

Step-by-step explanation:

3,998 - (-7) = ?

Two negative signs will make a positive sign.

3,998 - (-7) = 3998 + 7 = 4005

So, the answer is 4005