Identify which of the following statements are true or false:
Statement A: Hitting the bull's eye is reliability.
Statement B: Hitting the same spot again and again is validity.

Answer: A-We looked up the Z Score for 1.76 in our Normal Distribution Tables with Z Scores so you don't have to!

First, note that a Z Score of 1.76 means that your statistic is 1.76 standard deviation to the right of the mean on a bell curve. Here is a Bell Curve so you can visualize where 1.76 is on a bell curv

B-The numerical value of 1290 in Chaldean Numerology is: 0. Pythagorean Numerology. The numerical value of 1290 in Pythagorean Numerology is: 0

C-Since 2^10 is the same as 2^5 * 2^5 he was just breaking it down into something easier to calculate to verify that he had the right answer for 2^10 before working the rest of the equation.

Step-by-step explanation:

It is not possible for a study to have practical significance without statistical significance because statistical significance provides evidence that the observed effect is unlikely to have occurred by chance.

The Practical significance and statistical significance are two different concepts that are often used in hypothesis testing.

The Statistical significance refers to the probability that the observed results of a study occurred by chance, given a particular level of significance or alpha.

The Practical significance refers to whether the observed effect size is large enough to be meaningful in a real-world context.

It is possible for a study to have statistical significance without practical significance. For example, a study may find a statistically significant difference between two groups, but the difference may be so small that it is not meaningful in practice.

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Answer:

25 hours

Step-by-step explanation:

190-65= 125 divided by 5 would give u 25 hours

hope it helps

Step-by-step explanation:

Where is figure.

Plz attached pictures.

Answer:

$116.33.

Step-by-step explanation:

By proportion it is:

69.80 / 0.60

= $116.33.

Answer:

(8,3)

Step-by-step explanation:

f(8) = 3

The input is 8 and the output is 3

(8,3)

Answer: $5,303.20

Step-by-step explanation:

The total purchase cost including tax is $4,900.25, and you made a down payment of $1,200, so the amount financed is:

$4,900.25 - $1,200 = $3,700.25

You will make 40 monthly payments of $102.58, so the total amount repaid will be:

40 x $102.58 = $4,103.20

This includes the amount financed plus the finance charge. Adding the down payment, the total amount paid is:

$1,200 + $4,103.20 = $5,303.20

Therefore, the total amount repaid is $5,303.20.

Answer:

d = 4

Step-by-step explanation:

The n th term of an arithmetic sequence is

\(a_{n}\) = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₁ = - 2 and a₈ = 26 , then

- 2 + 7d = 26 ( add 2 to both sides (

7d = 28 ( divide both sides by 7 )

d = 4

Answer:

d = 4

Step-by-step explanation:

a₁ = -2

a₈ = aₙ = 26

n = 8

aₙ = a₁ + d(n-1)

d = aₙ - a₁ / (n-1)

d = 26 -(-2) / (8-1)

d = 26 + 2 / 7

d = 28 / 7

d = 4

-2

-2 + 4 = 2

2 + 4 = 6

6 + 4 = 10

10 + 4 = 14

14 + 4 = 18

18 + 4 = 22

22 + 4 = 26

Answer:

El área de un círculo se puede calcular utilizando la fórmula A = πr², donde r es el radio del círculo. Como el diámetro del círculo es de 20 cm, el radio será la mitad de ese valor, es decir, 10 cm. Por lo tanto, el área del círculo sería:

A = πr²

A = π(10 cm)²

A = π(100 cm²)

Aproximadamente, el área es de 314,16 cm².

Answer:

32.008

Step-by-step explanation:

Answer:

-9

Step-by-step explanation:

Given following equation. -x^3/2 = -27, we are to find the value of x

-x^3/2 = -27

Square both sides

(-x^3/2)^2 = (-27)^2

-x^3 = 729

x^3 = ∛-729

x = -9

hence the value of -9

The given statement "if the total change of a function f along a curve c is zero, then c must be a contour of f" is true because a contour of a function f is a curve along which the function has a constant value.

When the total change of a function f along a curve c is zero, it means that the function's value has not changed throughout the curve.

This indicates that the curve c must be a contour of the function f, as the function has a constant value along the curve.

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The correct answer is E) Two of the responses above are correct:

The measurement(s) that would help determine absolute dates by radiometric means are the accumulation of the daughter isotope and the loss of parent isotopes. These two measurements are crucial in radiometric dating methods, which rely on the decay of radioactive isotopes in rocks and minerals over time.

In radiometric dating, scientists measure the ratio of parent isotopes to daughter isotopes in a sample. The parent isotopes decay at a known rate, converting into daughter isotopes. By determining the amount of parent isotope that has decayed and the accumulation of daughter isotope, scientists can calculate the age of the sample.

For example, if a rock sample contains a radioactive isotope with a half-life of 1 million years, and 75% of the parent isotope has decayed into the daughter isotope, it can be inferred that the rock is approximately 2 million years old (since two half-lives have passed).

Therefore, the correct answer is E) Two of the responses above are correct: the accumulation of the daughter isotope and the loss of parent isotopes are measurements that help determine absolute dates by radiometric means.

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The term​ annuity is best described as​ a stream of equal installments made at equal time intervals​.

An annuity is a term used to define a series of payments of equal size at equal intervals. Equal time intervals such as months, quarters, or years, and uniform payments are the two characteristics that make a series of payments an annuity. Therefore, a series of payments can be an annuity however all series of payments are not annuities. If the series of payments is of different values or at different intervals, it is not considered to be an annuity. An annuity that provides for payments for the remainder of a person's lifetime is known as a life annuity.

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To find the differential equation for a family of curves, we need to find an equation that relates the variables involved in the curves. For example, consider the family of curves given by:

y = mx + c

where m and c are constants. To find the differential equation for this family of curves, we can take the derivative of both sides with respect to x:

dy/dx = m

This is the differential equation for the family of curves.

To find the family of orthogonal trajectories, we need to find a new family of curves that intersect the original family of curves at right angles. We can use the fact that the product of the slopes of two perpendicular lines is -1. So, if the differential equation for the original family of curves is:

dy/dx = f(x, y)

then the differential equation for the family of orthogonal trajectories is:

dy/dx = -1/f(x, y)

To find a specific orthogonal trajectory, we need to solve this differential equation for y as a function of x.

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There are 472 more buttons bought by Vance than beads.

For the stated question table is made.

So,

Total number of beads bought by Vance = Number of beads(2 packages of large beads) + Number of beads(1 package of medium beads).

= (2 × 96) + (1 × 64)

= 2 × (90 + 6) + 64

= (2 × 90) + (2 × 6) + 64

= 180 + 12 + 64

= 256 beads

Now,

Total number of buttons bought by Vance = Total number of buttons (2 packages of large buttons) + Number of buttons (2 packages of medium buttons)

= (2 × 56) + (2 × 38)

= 2 × (50 + 6) + 2 × (30 + 8)

= (2 × 50) + (2 × 6) + (2 × 30) + (2 × 8)

= 100 + 12 + 600 + 16

= 728 buttons

Thus,

Difference for the number of buttons and beads

= 728 – 256

= 472 beads

So,

Therefore, there are 472 more buttons bought by Vance than beads.

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Answer:

This mapping isn't a function.

Step-by-step explanation:

A mapping specifies a relation between two sets of items (input and output). For example, a mapping of the form \(\lbrace (x_{0},\, y_{0}),\, (x_{1},\, y_{1})\rbrace\) would map the input \(x_{0}\) to output \(y_{0}\) and map the input \(x_{1}\) to output \(y_{1}\).

A function is a mapping where each input is associated with exactly one output.

Note that both \((2,\, 1)\) and \((2,\, 4)\) are in the mapping given in this question. The input \(2\) is mapped to more than one outputs. Thus, this mapping isn't a function.

Answer:

Step-by-step explanation:

D think is your answer

Answer:

\(y = - \frac{1}{2} x + 4\)

Step-by-step explanation:

Let us consider two points through which the line passes through

\((x_1 , y _ 1 ) = ( 0 , 4 ) \ and \ (x_ 2 , y _ 2 ) = ( 4, 2 )\)

Step 1 : Find slope of the line

\(Slope, m_1 = \frac{rise}{run} \\\\That \ is \ m_1 \ = \frac{y_2 - y _ 1}{x_2 - x_1}\)

                  \(= \frac{2 - 4}{4-0} \\\\=-\frac{2}{4}\\\\= - \frac{1}{2}\)

Step 2 : Find equation of the line.

\((y - y _ 1) = m_ 1 (x - x_1)\\\\( y - 4) = - \frac{1}{2}(x - 0)\\\\y = -\frac{1}{2}x + 4\)

Answer:

y=-x+16

Step-by-step explanation:

let’s put this equation in slope intercept form: y=mx+b

2x+2y=-8

-2x.      -2x

2y=-2x-8

/2.  /2.  /2

y=-x-4

We know parallel lines have the same slope as each other so let’s fill in the equation with the given point

10=-(6)-4

10=-10

We need to add 20 more to the y intercept to make this true like this

y=-x-4+20

y=-x+16

Now let’s see if it works

10=-(6)+16

10=10

It works so this is the equation

Hopes this helps please mark brainliest

Answer: y = -x +16

Step-by-step explanation:

rearrange the equation to make y the subject

2y = -2x -8

y = -x-4

equation of line parallel to the line (gradient will be the same)

y = -x +c

Substitute the x and y values into the parallel line equation

10 = -6 + c

10 + 6 = c

16 = c

Therefore, the equation of the line parallel to 2x + 2y = -8 is y = -x +16

The optimal weekly stocking level for avocados is 220 avocados.

Given,Weekly demand = 200

Standard deviation = 10Cs = $4.50Ce = $1.25

The objective is to determine the optimal weekly stocking level for avocados.Step-by-step explanation:Let x be the weekly stocking level for avocados. Then the expected cost (C) is given by:C = CsP(stockout) + CeP(excess) + Co,where P(stockout) is the probability of a stockout, P(excess) is the probability of excess inventory, and Co is the cost of ordering avocados.

Since avocados have a normal distribution, we have:

P(stockout) = P(Z > (x - 200)/10) = 1 - P(Z < (x - 200)/10),P(excess) = P(Z < (x - 200)/10),

where Z is the standard normal random variable with mean 0 and standard deviation 1. We want to minimize C, so we differentiate with respect to x and set equal to 0:dC/dx = (Cs/10)phi((x - 200)/10) - (Ce/10)phi(-(x - 200)/10) = 0,where phi is the standard normal probability density function. Solving for x, we get:x = 200 + 10(Phi^(-1)(Ce/Cs)),where Phi^(-1) is the inverse standard normal cumulative distribution function. Plugging in the given values, we get:x = 200 + 10(Phi^(-1)(1.25/4.50)) = 200 + 1.96(10) = 219.6 (rounded to nearest whole number)

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1. Confidence interval for the mean profit per visit at 99% significance level is given by: Lower limit = Sample Mean - (Z-value x Standard Error)Upper limit = Sample Mean + (Z-value x Standard Error)where Z-value is 2.576 (from Z table for 99% confidence interval) and Standard Error is calculated as Standard Deviation / √n (square root of sample size).So,Lower limit = 10.35564 - (2.576 x (14.48924 / √4738)) = 9.5677Upper limit = 10.35564 + (2.576 x (14.48924 / √4738)) = 11.14352

2. Null Hypothesis: mean profit per visit for all of your visitors is $11.50 Alternative Hypothesis: mean profit per visit for all of your visitors is not equal to $11.50

3. t-statistic can be calculated as:t = (Sample Mean - Population Mean) / (Standard Deviation / √n)Here, Population Mean is $11.50,t = (10.35564 - 11.50) / (14.48924 / √4738) = - 23.8591

4. We have to find the p-value for the null hypothesis. The two-tailed p-value can be found using t-tables or calculators. From t-table, p-value for t = - 23.859 at df = 4737 is very small, approximately 0.00000000000005.

5. At 95% confidence level, we reject the null hypothesis if p-value is less than 0.05. Here, the p-value is very small and less than 0.05. Therefore, we reject the null hypothesis.

6. We reject the null hypothesis because the p-value is less than 0.05. It means that we have enough evidence to conclude that the mean profit per visit for all of your visitors is not $11.50.

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Answer:

QR = 15

Step-by-step explanation:

The product of the length of the secant segment and its external part equals the square of the length of the tangent segment.

(QR+5) *5 = 10^2

(QR+5) *5 = 100

Divide each side by 5.

(QR+5) *5/5 = 100/5

(QR+5)  = 20

Subtract 5 from each side.

QR = 20-5

QR = 15

Answer:

For the question 7 its congruent for 8 it's not congruent

Step-by-step explanation:

Answer:

Step-by-step explanation:

Arianna will always be 3 years older than Javier no matter how old he gets.

The table is given below.

The equation that relates the age of Arianna y to the age of Javier x is

y = x + 3

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

We can use the given information to complete the table as follows:

Javier(x) Arianna (y)

2          5

3          6

8          11

20          23

Now,

The equation that relates the age of Arianna, y, to the age of Javier, x.

We have,

y = mx + b, where m is the slope and b is the y-intercept.

We can use the first two points (2, 5) and (3, 6) to find the slope.

m = (6 - 5)/(3 - 2)

m = 1

Now,

The y-intercept,

(2, 5) = (x, y)

y = mx + b

5 = 1(2) + b

b = 3

Therefore,

The equation that relates the age of Arianna y to the age of Javier x is

y = x + 3

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Answer:

  B. at an x–intercept

Step-by-step explanation:

You can find a graph of the sine function in numerous places.

  y = sin(0) = 0

  y = 0 for x = 0

so, on the given interval, it starts at an x-intercept.

Tiana traveled 2.532 along the circular ski trail, when tiana is skiing along a circular ski trail that has a radius of 1.6 km long.

To solve this problem we can use the law of cosines. We can set up the equation c^2=1.6^2+1.419^2-2(1.6)(1.419)cos(theta), where c is the distance that Tiana has traveled and theta is the angle between the 3-o'clock position and the point at which Tiana stopped skiing. Solving for c, we get c=2.532 km. Therefore, Tiana has traveled 2.532 km along the circular ski trail.

To do this, we used the law of cosines to solve the triangle made by the center of the ski trail and the two points of interest. We then squared the radius, squared the distance to the right, and subtracted twice their product multiplied by the cosine of theta. Finally, we took the square root of the equation to get the distance Tiana traveled.

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Answer:

Equation will be y = 5x + c

Step-by-step explanation:

For point (5, 1)

1 = 5(5) + c

Or, c = - 24

So, y = 5x - 24