Find the midpoint of the segment
(-9, 8) and (-4, −2)

True. Small p-values support the rejection of the null hypothesis and provide evidence in favor of an alternative hypothesis.

Small p-values indicate that the observed sample data provides strong evidence against the null hypothesis. The p-value is a measure of the strength of evidence against the null hypothesis in a hypothesis test. It represents the probability of observing the obtained sample data, or more extreme data, if the null hypothesis is true.

When the p-value is small (typically less than a predetermined significance level, such as 0.05), it suggests that the observed sample data is unlikely to have occurred by chance under the assumption of the null hypothesis. In other words, a small p-value indicates that the observed data is inconsistent with the null hypothesis.

Conversely, when the p-value is large (greater than the significance level), it suggests that the observed sample data is likely to occur by chance even if the null hypothesis is true. In such cases, there is not enough evidence to reject the null hypothesis. Therefore, small p-values support the rejection of the null hypothesis and provide evidence in favor of an alternative hypothesis.

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Answer:

40 乘以 2，答案是 80，所以我猜是 209/5。

我不太确定，但是...

希望有帮助

! :)

Answer:

The answer is 209/5=41.8

Step-by-step explanation:

40 2/5= 40.4

436/11=39.63...

209/5=41.8

201/5=40.2

40 1/4=40.25

The diver's velocity during the first 2 sec of fall using the modified Euler method with Ar= 0.2 is 62.732 mph.

Given data: Initial velocity, u = 0 ft/sec

Acceleration, a = g = 32.2 ft/sec²

The maximum rate of fall, vmax = 80 mph

Time, t = 2 seconds

Air resistance constant, Ar = 0.2

We are supposed to determine the sky diver's velocity during the first 2 seconds of fall using the modified Euler method.

The governing equation for the velocity of the skydiver is given by the following:

ma = -m * g + k * v²

where, m = mass of the skydive

r, g = acceleration due to gravity, k = air resistance constant, and v = velocity of the skydiver.

The equation can be written as,

v' = -g + (k / m) * v²

Here, v' = dv/dt = acceleration

Hence, the modified Euler's formula for the velocity can be written as

v1 = v0 + h * v'0.5 * (v'0 + v'1)

where, v0 = 0 ft/sec, h = 2 sec, and v'0 = -g + (k / m) * v0² = -g = -32.2 ft/sec²

As the initial velocity of the skydiver is zero, we can write

v1 = 0 + 2 * (-32.2 + (0.2 / 68.956) * 0²)0.5 * (-32.2 + (-32.2 + (0.2 / 68.956) * 0.5² * (-32.2 + (-32.2 + (0.2 / 68.956) * 0²)))

v1 = 62.732 mph

Therefore, the skydiver's velocity during the first 2 seconds of fall using the modified Euler method with Ar= 0.2 is 62.732 mph.

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Answer:

I know the answer but you may select me as Brainliest

the answers are there

i hope it will help you

Answer:

3.33

Step-by-step explanation:

20 divided by 6 equals 3.33333333333

Round that you get 3.33

The range of (uºv)(x) can be represented in interval notation as: \(\mathbf{(-\infty,3)}\)

In a function, the range is the set of all valid values of y and this can be better determined from the graphical representation of the given function.

Here, we are given:

u(x) = -2x² +3

v(x) = 1/x

To find (uºv)(x) which can be written as u(v(x)), we need to input all the values of v(x) into where we find the variable x in u(x), by doing so, we have:

u(1/x) = -2(1/x)² +3

u(1/x) = -2/x² +3

Now, the range of u(1/x) which is the set of all valid values of y can be represented in interval notation as: \(\mathbf{(-\infty,3)}\)

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Answer:34.3 N and 15.7 N

Explanation:

 = force on the left end of the rod

 = force on the right end of the rod

M = mass of Halloween decoration = 3 kg

 = weight of the Halloween decoration = Mg = 3 x 9.8 = 29.4 N

m = mass of rod = 2.1 kg

 = weight of the rod = mg = 2.1 x 9.8 = 20.6 N

From the force diagram, using equilibrium of torque about A

(AB) +  (AC) =  (AD)

(29.4) (21) + (20.6) (57) =  (114)

 = 15.7 N

Using equilibrium of force along the vertical direction

+  =   +

15.7 +   = 29.4 + 20.6

= 34.3 N

Step-by-step explanation:

Answer:

1,250 curtain rods

Step-by-step explanation:

2500 + 3750 = 6250

6250/5=1,250

1,250 curtain rods

The trapezoidal rule is a numerical integration method that uses trapezoids to estimate the area under a curve. The trapezoidal rule can be used for both definite and indefinite integrals. The trapezoidal rule approximation, Tn, to the integral sin r dz is given by:

Tn = (b-a)/2n[f(a) + 2f(a+h) + 2f(a+2h) + ... + 2f(b-h) + f(b)]where h = (b-a)/n. To determine how large n should be so that Tn is accurate to within 0.00001, we can use the error bound given in Section 5.9 of the course text. According to the error bound, the error, E, in the trapezoidal rule approximation is given by:E ≤ ((b-a)³/12n²)max|f''(x)|where f''(x) is the second derivative of f(x). For the integral sin r dz, the second derivative is f''(r) = -sin r. Since the absolute value of sin r is less than or equal to 1, we have:max|f''(r)| = 1.

Substituting this value into the error bound equation gives:E ≤ ((b-a)³/12n²)So we want to choose n so that E ≤ 0.00001. Substituting E and the given values into the inequality gives:((b-a)³/12n²) ≤ 0.00001Simplifying this expression gives:n² ≥ ((b-a)³/(0.00001)(12))n² ≥ (b-a)³/0.00012n ≥ √(b-a)³/0.00012Now we just need to substitute the values of a and b into this expression. Since we don't know the upper limit of integration, we can use the fact that sin r is bounded by -1 and 1 to get an upper bound for the integral.

For example, we could use the interval [0, pi/2], which contains one full period of sin r. Then we have:a = 0b = pi/2Plugging in these values gives:n ≥ √(pi/2)³/0.00012n ≥ 5073.31Since n must be an integer, we round up to the nearest integer to get:n = 5074Therefore, we should choose n to be 5074 so that the trapezoidal rule approximation, Tn, to the integral sin r dz is accurate to within 0.00001.

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Answer:

point slope form: y - 1 = 4 (x -2)

slope intercept form: y = 4x -7

Step-by-step explanation:

If you want it in point slope form it would be: y - 1 = 4 (x -2)

but if you want it in slope intercept form, you solve this equation

y -1 = 4 (x-2)

y-1 = 4x -8

 +1          +1

y = 4x -7 in slope intercept form

Answer:

O Yes, because 1 kilogram = 1000 grams, and 1 liter = 100 centiliters.

Yes, because 1 gram per liter is the same as 1 kilogram per centiliter.

Step-by-step explanation:

The length of time required for money to quadruple in value at a simple interest rate of 6% per year is equal to 25 years.

To calculate this, we can use the following formula:

A = P(1 + r)^t

Where:

A is the final amount of money

P is the initial amount of money

r is the interest rate

t is the number of years

In this case, we have:

A = 4P

r = 0.06

t = ?

Solving for t, we get:

t = (log(4) / log(1 + 0.06))

t = 25 years

Therefore, it will take 25 years for money to quadruple in value at a simple interest rate of 6% per year.

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Therefore, Guy would be willing to pay approximately $5,989.00 today for this investment based on the expected cash flows and the interest rate. The correct option is C) $5,989.00.

The formula for present value of a series of cash flows is given by:

\(PV = C1/(1+r)^1 + C2/(1+r)^2 + C3/(1+r)^3 + ... + Cn/(1+r)^n\)

Where:

PV is the present value,

C1, C2, C3, ..., Cn are the cash flows at different time periods,

r is the interest rate, and

n is the number of time periods.

In this case, the cash flows are $2,000, $1,500, $3,000, and $400, occurring at the end of year 1, year 2, year 3, and year 4, respectively. The interest rate (r) is 6%.

Substituting these values into the formula, we have:

\(PV = 2,000/(1+0.06)^1 + 1,500/(1+0.06)^2 + 3,000/(1+0.06)^3 + 400/(1+0.06)^4\)

Simplifying the expression:

\(PV ≈ 2,000/1.06 + 1,500/1.06^2 + 3,000/1.06^3 + 400/1.06^4\)

Using a calculator, we find that PV ≈ $5,989.00.

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The domain of the given function H (t) is 0 ≤ t ≤ 40.

What is the domain of a function?

The collection of all the values for which a function is defined is known as the domain of that function.

We are given that the height of a model rocket, H (t) is a function of time since it was launched, t.

From the graph, we can see that the value of t is represented on the x- axis is ranging from 0 to 40.

Hence, the domain of the given function H (t) is 0 ≤ t ≤ 40.

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Step-by-step explanation:

first add all the n together

3n and 4n

add those together too

7n

now add 2+4

6 now

7n\-7n =6/-7n = -1n

Therefore, the 90% confidence interval for the proportion of medical malpractice lawsuits that are dropped or dismissed is (0.635, 0.695).

To construct a confidence interval for the proportion of medical malpractice lawsuits that are dropped or dismissed, we can use the following formula:

CI = p ± z*sqrt((p*(1-p))/n)

where:

- p is the sample proportion of lawsuits that are dropped or dismissed (p = 732/1100 = 0.665)

- z* is the critical value of the standard normal distribution at a 90% confidence level (from a standard normal distribution table, z* = 1.645 for a 90% confidence level)

- n is the sample size (n = 1100)

Substituting the values into the formula, we get:

CI = 0.665 ± 1.645*sqrt((0.665*(1-0.665))/1100)

  = 0.665 ± 0.030

Therefore, the 90% confidence interval for the proportion of medical malpractice lawsuits that are dropped or dismissed is (0.635, 0.695). This means that we can be 90% confident that the true proportion of lawsuits that are dropped or dismissed is between 0.635 and 0.695.

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The algebra properties are as follows: associative property , distributive property, identity property, inverse property.

As given in the question,

Properties of the algebra are as follow:

1. Associative property :

Let a, b, c be the three expressions

a. For addition:

( a + b ) + c = a + ( b + c )

b. For multiplication :

a × ( b × c ) = ( a × b ) × c

2. Distributive property:

Let a, b, c be the three expressions

For multiplication over addition:

a ( b + c ) = ab + ac

3. Identity property:

a. For addition:

a + 0 = a

b. for multiplication :

a × 1 = a

4. For inverse

For addition:

a + ( -a ) = 0

For multiplication:

a × ( 1 /a) = 1

Therefore, the four properties of the algebra are associative property , distributive property, identity property, inverse property.

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The value of the variable, n is 5

An algebraic expression can simply be defined as an expression that is composed of variables, coefficients, factors, constants and terms.

These mathematical expression called algebraic expressions are also composed of arithmetic operations, such as;

Examples of algebraic expressions are;

2x + 18

2x² + 4

3y + 6

From the information given, we have that;

7n - 4 = 31

collect like terms

7n = 31 + 4

Add like terms

7n = 35

Make 'n' the subject of formula

n = 35/7

n = 5

Thus, the value is 5

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Answer:

5040

Step-by-step explanation:

There are 7 ways to choose the first slot, 6 ways to choose the second slot, 5 ways to choose the third slot, 4 ways to choose the fourth slot, 3 ways to choose the fifth slot, 2 ways to choose the 6th slot, and 1 way to choose the last slot, so

7! = 7*6*5*4*3*2*1

7! = 7*6!

7! = 7 * 720

7! = 5040

Ben needs to score at least 82 on the last quiz to finish with an average of at least 75.

To determine the scores Ben needs on the last quiz to finish with an average of at least 75, we can use the concept of average.

Ben has taken four quizzes and has received scores of 62, 77, 73, and 81. We can calculate his current average by summing up these scores and dividing by the number of quizzes (4).

To achieve an average of at least 75, Ben needs the sum of all five quiz scores to be at least (75 * 5) = 375. Since he has already scored 293 on the first four quizzes, he needs to score:

Score on the last quiz = Required total - Sum of first four quizzes

Therefore, Ben needs to score at least 82 on the last quiz to finish with an average of at least 75.

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Answer:

2 decimal places

Step-by-step explanation:

just simple count the number of decimal points on both sides

Answer:

V = 672; SA = 544; LA = 448

Step-by-step explanation:

So, the correct graph should have the scale factor on the x-axis and the area on the y-axis. This is Graph B. The other graphs do not correctly represent the relationship between the scale factor, area, and perimeter.

There are different types of graphs, including directed graphs (also called digraphs), where each edge has a direction, and undirected graphs, where each edge has no direction. Graphs can also be weighted, meaning that each edge has a value associated with it, or unweighted, where all edges have the same value.

Graphs can be represented visually, using diagrams that show the vertices as points and the edges as lines or arrows connecting them. Graphs are used in a variety of applications, including computer algorithms, data analysis, and optimization problems.

by the question.

The area of the original triangle is 6 square inches, and the perimeter is 12 inches. Let the lengths of the sides be a, b, and c. Then, we have:

\(a + b + c = 12\) (perimeter)

\(s = (a + b + c)/2 = 6\) (semi perimeter)

\(A =\sqrt(s(s-a)(s-b)(s-c)) = 6\) (area)

Simplifying the equations, we get:

\(a + b + c = 12\)

\(a + b + c - 2a - 2b - 2c = 0\)

\(-a - b - c = -12\)

\(-a - b - c + 2a + 2b + 2c = 0\)

\(a + b + c = 0\)

Therefore, the centroid of the original triangle is at the origin (0,0).

When the triangle is dilated by a scale factor of k, the new area and perimeter are given by:

\(A' = k^2A = 6k^2\)

\(P' = kP = 12k\)

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Answer:

D

Step-by-step explanation:

(7+-6)/2

(7-6)/2

1/2

(-6+(-8)/2

(-6-8)/2

-14/2

-7

(.5,-7)

- E(X) = 2.5
- E(5 – X) = 2.5
- The repair facility should charge a flat fee of $55 because E[(5 – X)/150] is not equal to 2.5.



E(X) = E(5 – X) = 5 – E(X)
To calculate E(X), we can use the equation E(X) = 5 – E(X) and solve for E(X):
2E(X) = 5
E(X) = 5/2 = 2.5
For E(5 – X), we substitute E(X) with its value:
E(5 – X) = 5 – E(X)
E(5 – X) = 5 – 2.5
E(5 – X) = 2.5
The repair facility would be better off charging a flat fee of $55 because E[(5 – X)/150] does not equal 2.5.

The expected value (E(X)) represents the average value of a random variable. In this case, E(X) and E(5 – X) are calculated. We find that E(X) is equal to 2.5, meaning on average, the repair facility expects a value of $2.5 per repair.
The repair facility is considering two pricing options: a flat fee of $55 or a fee of [(5 – X)/150]. To determine which option is better, we compare the expected values. However, E[(5 – X)/150] does not equal 2.5. Therefore, the repair facility would be better off charging a flat fee of $55.
The final answers state the values of E(X) and E(5 – X), and then explain that the repair facility should choose the $55 flat fee because E[(5 – X)/150] is not equal to 2.5.

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Answer:

It depends.

Step-by-step explanation:

It completely depends on the hydration you'd like of dough, for example if you'd like 60% hydration for pizza dough, you use 60% flour in comparison to water.

Good luck :)

(you can check for specific amounts online, those are pretty helpful. I myself am not too good at all the measurements apart from knowing this one!)