help me please i’m struggling

Answer:

(0,-3)

Step-by-step explanation:

Apex

The statistical test which should be run by Dr wade Wilson is independent sample t test.

To ascertain whether there is statistical support that the linked population means are statistically substantially different, the Independent Samples t Test compares the means of two independent groups. An example of a parametric test is the Independent Samples t Test. Additionally called the Independent t Test.

When you wish to compare the means of just two groups—no more, no less—use an independent samples t test! This test is typically used to detect whether two population means differ.

Hence if dr. wade wilson is interested in whether or not people who watch adventure movies actually have quicker reaction times than people who read literary novels then he must use independent sample t test.

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The original price of the bracelet, before tax $0.68

From the question, we have the following parameters that can be used in our computation:

Amount = $0.72

Sales tax = 6%

Using the above as a guide, we have the following:

Amount = Original amount * (1 + Sales tax)

Substitute the known values in the above equation, so, we have the following representation

0.72 = Original amount * (1.06)

So, we have

Original amount = 0.68

Hence, the original amount = 0.68

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Answer:

the answer to what?

Step-by-step explanation:

Answer:

chips 1.50 cents hot dogs 2 dollars

Step-by-step explanation:

Hot do is 2 dollars because the same chips were put but 1 extra dog is 2 dollard and you divide from there and get 1.50 for chips

The value of x is 120° .

Given,

In triangle HGF,

HF and FG and are equal in length and ∠G is 60° .

Now,

If the sides are equal there angles will be equal.

So,

FG and FH are equal thus angle ∠H will be equal to 60° .

Sum of all the interior angles of triangle is 180° . Thus ∠F will be equal to 60° .

Now,

∠H and x° will form linear pair.

∠H + x°  = 180°

x = 120° .

Hence all the angles of the triangle are obtained.

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The number of unique ways or permuations to arrange the seven letters in MINIMUM is all the letters are used each time is 420.

According to the given question.

We have a word MINIMUM.

Here, there are 7 letters in "MINIMUM" .

Now, in Minimum the number of letters which are repeated and which are not.

M = 3 times

I = 2 times

N = 1 time

U = 1 time

As, we all know if there is no repetitions in a word which is made of n letters, then we can arrange it by n! ways.

But if there is repetition, we use formula

\(\frac{n!}{n_{1}! n_{2}!..n_{k}! }\)

where, n = \(n_{1} +n_{2} +n_{3} ...+n_{k}\)

\(n_{1}\) is objects of one type

\(n_{2}\) is the objects of two types

\(n_{k}\) is the objects of k types

Thereofore, the number of unique ways or permuations to arrange the seven letters in MINIMUM is all the letters are used each time

= 7!/ 3!2!

= 7(6)(5)(4)(3!)/3!(2)(1)

= 7(3)(5)(4)

= 420

Hence, the number of unique ways or permuations to arrange the seven letters in MINIMUM is all the letters are used each time is 420.

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Answer:

Step-by-step explanation:

You have to use the distance formula to find that distance.  The formula is:

\(d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}\)

Let's call the first point x1, y1 (4, -1) and the second point x2, y2 (0, -2). Plugging into our formula then gives us this:

\(d=\sqrt{ (0-4)^2+(-2-(-1))^2}\)

which simplifies to

\(d=\sqrt{(-4)^2+(-1)^2}\) which is

\(d=\sqrt{17}\) ≈ 4.123 units

The expression, in terms of 'r' , for the number of bird boxes Johan made in the second week of April is r/2.

Expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both. Addition, subtraction, multiplication, and division are all possible mathematical operations.

In the second week of April, Johan made half as many bird boxes as he did the week before. The expression, in terms of 'r' , for the number of bird boxes Johan made in the second week of April is:

= 1/2 × r

= r/2.

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 A line's slope is a measurement of how steep a line is. Slope is calculated by dividing the change in y values by the change in x values.

  A line's steepness can be determined by looking at its slope. Slope is calculated mathematically as "rise over run" (change in y divided by change in x).

Slope is a measure of the steepness of a line.

Slope = rise / run = Δy / Δx.

Slope= Δx /Δy = 4−0 /2−5 = 4 / −3

​Slope from two points, for instance

We are informed that there are two possible solutions to a particular linear equation:

Solution: x = 11.4, y = 11.5, x = 11.4, y = 11.5, space, space, space, y = 11.

Answer: x=12.7 y=15.4 x=12.7 y=15.4

Slope=

Δx / Δy  =  12.7−11.4 /15.4−11.5

=  1.3 /3.9

= 13 /39

=3.

The line has a 333 slope.

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​

​

​

5 l9-5nl -7 =38

Add 7 to both sides of the equation:

5 l9-5nl -7 +7 = 38 +7

5 l 9 -5n l = 45

Divide both sides by 5

(5 l 9 -5n l ) /5 = 45/5

l 9 - 5n l = 9

Now, we have 2 solutions:

9-5n = 9

And

9-5n = -9

Solve each one

9-5n = 9

9-9 = 5n

0 = 5n

n= 0

9-5n = -9

-5n = -9-9

-5n= -18

n= -18/-5

n= 3.6

Answer: NOT D have a good day!

Step-by-step explanation:

Answer:

C. 9%

Step-by-step explanation:

That's it

Answer:

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the line first find the slope

Slope of the line using points

(-2,2)and(-3,-9) is

\(m = \frac{ - 9 - 2}{ - 3 + 2} = \frac{ - 11}{ - 1} = 11\)

Then use the formula

y - y1 = m(x - x1)

where

m is the slope

( x1 , y1) can be any of the points

Equation of the line using point (-2,2) and slope 11 is

y - 2 = 11 ( x + 2)

y - 2 = 11x + 22

11x - y = - 2 - 22

We have the final answer as

Hope this helps you

Answer:

x=2

y=0

Step-by-step explanation:

-x+2y= -2

   -2y. -2y

-x= -2-2y

/-1.  /-1 /-1

x=2+2y

3(2+2y)+2y=6

6+6y+2y=6

6+8y=6

-6.     -6

8y=0

/8 /8

y=0

3x+2(0)=6

3x=6

/3. /3

x=2

hopes this helps

If you flip a coin one time, the probability to get a Head is

p = 1/2

The probability of not getting a head in a single toss is :

q = 1 - 1/2 = 1/2

Thus there is only one unique situation to get the same number of heads and tails : in 10 toss you need to get exactly five heads, it will means that the rest is the tails.

Now using Binomial theorem of probability, the probability of getting exactly x = 5 heads in a total of n = 10 tosses is :

P(X = 5) = \(\frac{10!}{5!*5!} *(\frac{1}{2})^{5} *(\frac{1}{2})^{5}\)≈ 0.246

So the probability of that is 24,6 %

Good Luck

We have the height of the rectangle equal to h = 37.5 inches.

A rectangle is actually about a right triangle. We can use the Pythagorean theorem to generate an expression to find the height of the rectangle.

We know that:

\(c^2=a^2+b^2\) so replacing it with the width and length of the rectangle, we get :

\(c^2=h^2+w^2\)

We were not given values for the width and length, just their relationship to each other, and we can use that to find an equation in the variable h:

So, \(c^2=h^2+w^2\)

\((56)^2=h^2+(h+4)^2\)

\(3136=h^2+h^2+8h+16\)

\(0=2h^2+8h+16-3136\)

\(0=2h^2+8h-3,120\)

Since we cannot factor this, we can use the quadratic formula to solve for the height h, where, a = 2 , b = 8, c = -3,120

h = (-b ±\(\sqrt{b^2-4ac}\)) /2a

Now, Plug all the values:

h = (-8 ± \(\sqrt{8^2-4(2)(-3120)})/4\))

h = -8 ± \(\sqrt{64+24,960}/4\)

h =( -8 ± \(\sqrt{25,024})/4\)

h = (-8 ± 158.180)/4

There are two possible solutions, so we have:

\(h_1=\frac{-8+158.180}{4}\)                      \(h_2=\frac{-8-158.180}{4}\)

\(h_1 = 37.545\)                           \(h_2=-41.545\)  

\(h_1\) ≈ 37.5 in.                          \(h_2\) ≈ -41.5 in.

We cannot use \(h_2\) because a negative height is absurd and undefined. Thus, we have the height of the rectangle equal to h = 37.5 inches.

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In triangle KLM, the angle between the sides KL and LM is less than 90 degrees.

ΔKLM is a right triangle.The hypothesis of an indirect proof is the negation of the conclusion of the statement being proved. That is to say, if we assume that the negation is accurate and that it leads to a contradiction, we can assume that the initial statement is true.ΔKLM is not a right triangle is the negation of the statement.

Therefore, we will use this statement as our hypothesis. Assume that ΔKLM is not a right triangle. This indicates that the angle between sides KL and LM is not 90 degrees. If the angle is smaller than 90 degrees, the triangle will be an acute triangle.

If the angle is more than 90 degrees, the triangle will be an obtuse triangle. This implies that in triangle KLM, the angle between the sides KL and LM is less than 90 degrees.

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Answer:

  b = -2.875

Step-by-step explanation:

You want the value of b such that (-2, 10) is a point on the graph of g(x)= 5/x −bx²+1.

Fill in the given values and solve for b.

  g(-2) = 10

  5/(-2) -b(-2)² +1 = 10

  -2.5 -4b +1 = 10

  -4b = 11.5

  b = -11.5/4

  b = -2.875

Answer:

0.2857 is not a rational number.

Step-by-step explanation:

Because rational numbers have to be greater than 1. Decimals are not over 1 so it is not a rational number. Your welcome!

Answer:

\(f(x) = x^{2}\cdot (x^{2}+9)\cdot (x^{3}+2\cdot x)\) is an odd function.

Step-by-step explanation:

Let be \(f(x) = x^{2}\cdot (x^{2}+9)\cdot (x^{3}+2\cdot x)\), by Algebra this expression can be rewritten as:

\(f(x) = x^{3}\cdot (x^{2}+9)\cdot (x^{2}+2)\)

Where \(x^{2} + 9\) and \(x^{2}+ 2\) are even functions, because they satisfy the condition that \(g(x) = g(-x)\), whereas \(x^{3}\) is an odd function, as the condition of \(h(-x) = - h(x)\) is observed. Then, the overall function is odd.

Step-by-step explanation:

r=3/2=(4.5)/3=3/2

it is geometric, so we will use this equation:

a(n)=a1*(r)^(n-1)

and we have a(1)=2 , r=3/2    

So  explicit formula:

a(n)=2*(3/2)^(n-1)

hope this helps

Answer: B

Step-by-step explanation:

on edge warm-up

The National Highway Traffic Safety Administration reports the percentage of traffic accidents occurring each day of the week. A sample of 420 accidents provided the following data. Conduct a hypothesis test to determine whether the proportion of traffic accidents is the same for each day of the week.

What is the p-value Using a 0.05 level of significance, what is your conclusion The given data is shown below: Day Monday Tuesday Wednesday Thursday Friday Saturday Sunday Number of accidents66929046507661

Now, we need to calculate the chi-square test statistic value and the p-value.

The calculations are shown below:

Day Observed (O)Expected (E)O - E(O - E)² / E

No. of accidents Monday669702.83-33.83-113.502.19

Tuesday929702.83 226.17 50.892.89

Wednesday465702.83-237.83-1333.767.11

Thursday076702.831373.17 1835.8831.26

Friday619702.83-83.83-70.202.26

Saturday617702.83-85.83-73.890.95

Sunday576702.8336.1778.811.61

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Answer:

okkkkkkkkkkkkkkkkkkkkkkkkkkk

By substituting the values into the formulas and calculating the covariances and variances using the given model, we can obtain the values of p(yt, yt-p) for each p.

To compute rho(yt, yt-p) for p > 0, we need to substitute the lagged values of yt into the autocorrelation formula. Let's calculate it for p = 1 and p = 2:

For p = 1:rho(yt, yt-1) = Cov(yt, yt-1) / sqrt(Var(yt) * Var(yt-1))

For p = 2:rho(yt, yt-2) = Cov(yt, yt-2) / sqrt(Var(yt) * Var(yt-2))

Generalizing for any p > 0, we can write:

rho(yt, yt-p) = Cov(yt, yt-p) / sqrt(Var(yt) * Var(yt-p))

6.2: To show that ϕ1 = rho(yt, yt-1), we need to substitute the autoregressive model equation into the autocorrelation formula. Let's calculate it:

rho(yt, yt-1) = Cov(yt, yt-1) / sqrt(Var(yt) * Var(yt-1))

= Cov(β0 + ϕ1yt-1 + εt, yt-1) / sqrt(Var(β0 + ϕ1yt-1 + εt) * Var(yt-1))

= Cov(ϕ1yt-1, yt-1) / sqrt(Var(ϕ1yt-1 + εt) * Var(yt-1))

= Cov(ϕ1yt-1, yt-1) / sqrt(ϕ1^2 * Var(yt-1) * Var(yt-1))

= Cov(ϕ1yt-1, yt-1) / (ϕ1 * Var(yt-1))

Since Cov(ϕ1yt-1, yt-1) = ϕ1 * Var(yt-1), we can conclude that ϕ1 = rho(yt, yt-1).

6.3:

For the MA(2) autoregressive model, we have:

yt = β0 + εt + θ1εt-1 + θ2εt-2

To compute p(yt, yt-p) for p = 1, 2, and 3, we substitute the lagged values of yt into the partial autocorrelation formula:

For p = 1:

p(yt, yt-1) = Cov(yt, yt-1) / sqrt(Var(yt) * Var(yt-1))

For p = 2:

p(yt, yt-2) = Cov(yt, yt-2) / sqrt(Var(yt) * Var(yt-2))

For p = 3:

p(yt, yt-3) = Cov(yt, yt-3) / sqrt(Var(yt) * Var(yt-3))

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To translate something:

  ⇒ is to write out the equations

Let's examine what information this problem gives us:

            ⇒ with '2' being the number of adults tickets

                ⇒total charge from purchasing adult tickets = 2 * 62.5 = 125

            ⇒ with 'x' being the number of child tickets bought

                 ⇒total charge from purchasing child tickets = 42.5x

Since the sum of total charge from purchasing adult tickets and total charge from purchasing child tickets is equal to 400:

   ⇒ 42.5x + 125 = 400 <== translated form

Let's solve:

   \(42.5x+125=400\\42.5x=275\\x=6.47\)

Since we can only buy whole tickets:

Mrs. Albert could have bought at most 6 child tickets

Answer: Mrs. Albert can bring 6 kids

Hope that helps!

Answer:

x = y^2

:

Find the numbers if both are positive and their sum is 12

x + y = 12

replace x with y^2, you have a quadratic equation

y^2 + y - 12 = 0

Step-by-step explanation:

Factors to

(y+4)(y-3) = 0

The positive solution is all they want here

y = 3

then

x = 3^2

x = 9

;

they add up to 12

Answer:

I’m a bit confused by the question, but hope this helps. Look below!

Step-by-step explanation:

There are multiple different ones, but here’s the ones I think. (This is my work btw.)

45+45= 90

45•45= not 45

10+80=90

10•10= not 80

9+81= 90

9•9=81

9 and 81!

Answer: A dilation produces an image similar to the original figure. So, the blue polygon is a dilation of the red figure.

Step-by-step explanation:

Answer:

Step-by-step explanation:

We can observe each term is twice as less than the previous term.

This is the indication the sequence is geometric and the common ratio is: