I don’t get this at all :(

Answer:

H0 : p ≤ 0.75   against Ha : p > 0.75

Step-by-step explanation:

We formulate our null and alter native hypotheses as

H0 : p ≤ 0.75   against Ha : p > 0.75

In the question the claim whether the promotional campaign actually increased the proportion of tourists visiting the museum is given which is formulated as alternative hypothesis.

So when we formulate the alternative hypothesis as Ha : p> 0.75 the null hypothesis is H0 p ≤ 0.75

Where p is the probability = 75% = 75/100 = 0.75

Answer:

$26

Step-by-step explanation:

Divide 78 by 3, which will get you 26 dollars per bouquet!

Answer:

Cost per bouquet is $26.

Step-by-step explanation:

You take the total cost of all three bouquets and divide them by the number of bouquets. 78/3 = 26.

Answer:

Step-by-step explanation:

Units = 30

Thousands = 2,000

Hundreds of Thousands = 400,000

Tens = 60

Hundreds = 100

HTHHTU

400,000

    2,000

       100

         60

         30

402,190

The value of each digit in a number is known as the place value. The number is 412,630.

The value of each digit in a number is known as the place value. The 5 in 350, for example, represents 5 tens, or 50, whereas the 5 in 5,006 represents 5 thousand, or 5,000. It is critical that children that while a digit can be the same, its value is determined by its position in the number.

Identification of the place value of a digit in a number:

As per the given statement, the part of the numbers can be written as,

Now, summing up all, we will get the number,

Number = 30 + 2,000 + 400,000 + 600 + 10,000

              = 412,630

Hence, the number is 412,630.

Learn more about the Place Value here:

https://brainly.com/question/27734142

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Answer:

Hey there!

3^-8(3^4)=3^-4

The second option is correct.

Hope this helps :)

Answer: D. (-2, 1)

Step-by-step explanation:

original coordinate of L: (0, -3)

2 units left: x-2

4 units up: y+4

 (x-2, y+4)

=(0-2, -3+4)

=(-2, 1)

Hope this helps!! :)

Answer:

(x + 1) (x + 2) / 2

Step-by-step explanation:

(x² − 4x − 5) / (x − 2) ÷ (2x − 10) / (x² − 4)

To divide by a fraction, multiply by its reciprocal.

(x² − 4x − 5) / (x − 2) × (x² − 4) / (2x − 10)

Factor.

(x − 5) (x + 1) / (x − 2) × (x − 2) (x + 2) / (2 (x − 5))

Reduce.

(x + 1) × (x + 2) / 2

(x + 1) (x + 2) / 2

Question:

At the beginning of the months, a consumer had $437.52 of in his bank account. During which he made deposits of $80, $256 and $217.14 and write checks of $115.98 and $108.90 - What balance left?

Answer:

The customer's balance is $765.78

Step-by-step explanation:

Given

Start Amount = $437.52

Deposits = $80, $256 and $217.14

Withdrawals (Checks) = $115.98 and $108.90

Required

Determine his balance

We start by calculating the total deposits made by the customer

[tex]Total\ Deposits = \$80 + \$256 + \$217.14[/tex]

[tex]Total\ Deposits = \$553.14[/tex]

Next, we calculate the total withdrawals (checks)

[tex]Total\ Withdrawals = \$115.98 + \$108.90[/tex]

[tex]Total\ Withdrawals = \$224.88[/tex]

At this point, we can now calculate the customer's balance as follows;

[tex]Balance =Start\ Amount + Total\ Deposits - Total\ Withdrawals[/tex]

[tex]Balance = \$437.52+ \$553.14 -\$224.88[/tex]

[tex]Balance = \$765.78[/tex]

Hence, the customer's balance is $765.78

The balance left in the consumer's account is $765.78.

The amount of money in the consumer's account increases with the deposits made and reduces when she writes checks.

The total value of the deposits have to be determined first.

Total value of the deposits = $256 + $217.14 + $80 = $553.14

The value of the checks written has to be determined

$115.98 + $108.90 = $224.88

Add the value of deposit, subtract the value of checks from the beginning balance

$437.52 + $553.14 - $224.88 = $765.78

To learn more about addition, please check: https://brainly.com/question/349488

Answer:

480 markers

Step-by-step explanation:

694 - (78+136) =

694 - 214

= 480 markers

Answer:

694 - 78 = 616, then you take 616 - 136 = 480 total markers left.

         (out of ^ ink)           (the ones she ^ gives to her friend)                                    

Step-by-step explanation:

480 markers are left for her first week of summer! hope this helps, good luck!

Answer:

B. 40 ≤ e ≤ 100

Step-by-step explanation:

In a function, the domain values are the independent variables, and are always plotted on the x-axis, while the range values the dependent variables, which are always plotted on the y-axis on a graph.

From the graph given, it shows that f is a function of e. Which is, [tex] e(f) [/tex].

Therefore, the range of the function would be: B. 40 ≤ e ≤ 100

Answer:

2 minutes

Step-by-step explanation:

Time taken by the electric heater = 8 minutes

Time taken by the heater+ stove = 6 min

8+time taken by the stove =6 min

Time taken by the stove alone to heat the house = 8-6= 2 minutes

Answer:

line r

Step-by-step explanation:

Given that circle A is externally tangent to Circle B

line AM is perpendicular to line r

Answer:  x= y

Step-by-step explanation:

3x + y =5x -y         Subtract 5x from both sides

-5x         -5x

-2x + y = -y         Now subtract  y from both sides

       -y    -y

-2x = -2y      Now divide both sides by -2

x = y

Answer:

The answer is "It is not highly probable".

Step-by-step explanation:

In the given question some data is missing, that's why first we define value than its solution:

Missing value:

[tex]\bar x= 0.15\\\\s=0.06[/tex]

Solution:

[tex]\to \ H_0 : \mu \leq 0.10\\\to H_1: \mu > 0.10[/tex]

Formula:

[tex]Z= \frac{x-\mu}{s}\\\\[/tex]

   [tex]=\frac{0.15- 0.10}{0.06}\\\\=\frac{0.05}{0.06}\\\\=\frac{0.05}{0.06}\\\\=.833\\[/tex]

calculating the value of x:

formula:

[tex]x=X(Z>z)[/tex]

   [tex]=0.833-0.841\\\\=-0.008[/tex]

Step-by-step explanation:

given data:

total marbles = 75

red marble = 10

white marble = 30

blue marble = 20

orange marble = 15

solution:

a. Probability of drawing an orange or red

= 15/75 + 10/75

= 1/3

b. probability of not drawing a red or blue

= 1 - 20+10/ 75

= 3/5

c. Not blue

= 1 - p

= 1 - 20/75

= 11/5

d. Probability of drawing a white

= 30/75

= 2/5

e = red, white or blue

= 10/75 + 30/75 + 20/75

= 4/5

Answer:

Step-by-step explanation:4/5

Answer:

36, 525, 795, and 84

Step-by-step explanation:

36/3=12

525/3=175

795/3= 265

84/3=28

Answer:

-$50 lol

Step-by-step explanation:

Hi :)

To find your balance after you withdraw $50, simply take your balance, and subtract $50

balance-withdraw=balance

Hope this helps,

Jeron

Answer:

[tex]\alpha = 35º[/tex]

Step-by-step explanation:

Primeiro, vamos dizer que essa folha tem extremidades nos pontos [tex]A, B, C, D[/tex].

E vamos chamar os vértices do triângulo que contém o ângulo [tex]\alpha[/tex] de [tex]E, F, G[/tex].

Na semireta de baixo, formada por [tex]DC[/tex], a gente tem um ângulo de [tex]70º[/tex] e um outro ângulo de [tex]90º[/tex] (porque ele indica um ângulo reto).

Vamos dizer que estes dois ângulos se encontram no ponto [tex]E[/tex], que combinamos antes, como vértice (extremidade) do triângulo de cima.

Como os dois ângulos, estão num mesmo ponto, [tex]E[/tex], podemos dizer que existe um terceiro ângulo para o qual sua soma seja [tex]180º[/tex]. E tem, seria o ângulo à esquerda de

Vamos chamar este ângulo de [tex]\beta _{I}[/tex]. Portanto:

[tex]\beta _{I} + 90º + 70º = 180º\\\beta _{I} = 180º - 160º\\\beta _{I} = 20º[/tex]

Agora, temos um outro triângulo no canto inferior esquerdo da folha, cujos ângulos são [tex]\beta x_{I}[/tex], [tex]90º[/tex] e um outro ângulo, que vamos chamar de [tex]\beta x_{II}[/tex]

Esse último vai ser o ângulo superior deste triângulo, tá legal?

Então, vamos ter que:

[tex]\beta _{I} + 90º + \beta _{II} = 180º\\\beta _{I} + \beta _{II} = 90º\\[/tex]

Como [tex]\beta _{I} = 20º[/tex],

[tex]\beta _{I} + \beta _{II} =20º + \beta _{II}[/tex]

[tex]20º + \beta _{II} = 90º\\\beta _{II} = 90º - 20º\\\beta _{II} = 70º[/tex]

Ou seja, o ângulo superior do triângulo no canto inferior esquerdo, é 70º.

Vamos concordar, que este mesmo triângulo tem vértices nos pontos [tex]F, D, E[/tex]. Onde [tex]F[/tex] é o ponto superior, [tex]D[/tex] é a extremidade inferior esquerda do retângulo e [tex]E[/tex] é aquele mesmo ponto em que se encontram os ângulos de [tex]90º[/tex]e [tex]70º[/tex].

Mais à frente, você vai entender o porquê é importante nomear estes pontos, eu fiquei 40 minutos tentando fazer essa questão sem fazer isso e  não conseguia porque empacava numa parte da resolução.

Então, agora, sabemos que o ângulo [tex]\beta _{II}[/tex], que é o encontro dos seguimentos [tex]FD[/tex] e [tex]EF[/tex] vale [tex]70º[/tex].

Até aqui, foi só aplicar propriedades. Mas, a partir desse ponto, você vai precisar usar a criatividade.

Então, você entende que o ângulo [tex]\beta _{II}[/tex] está inserido numa reta com outros dois ângulos concentrados no ponto [tex]F[/tex].

Então, pode dizer que esse ângulo externo é o suplemento de [tex]\beta _{II}[/tex].

Vamos chamar todo ele de [tex]\beta _{III}[/tex]

[tex]\beta _{II} + \beta _{III} = 180º\\70º + \beta _{III} = 180º\\\beta _{III} = 180º - 70º\\\beta _{III} = 110º[/tex]

Agora, vamos elevar o nível de criatividade no raciocínio e ver também que temos um quadrilátero formado pelos pontos [tex]A, G, F, E[/tex]

A soma dos ângulos de qualquer quadrilátero é 360º.

E temos que esse mesmo quadrilátero é formado por dois ângulos retos, além do ângulo de 110º que calculamos.

A última extremidade que falta é um ângulo formado pela soma de [tex]\alpha[/tex] a um outro ângulo, que vamos chamar de [tex]\beta _{IV}[/tex].

Então, temos que:

[tex]90º + 110º + 90º + \alpha + \beta _{IV} = 360º\\\alpha + \beta _{IV} +290º = 360º\\\alpha + \beta _{IV} = 360º + 290º\\\alpha + \beta _{IV} = 70º\\[/tex]

De todas, as etapas dessa resolução essa é a mais importante de entendermos os pontos que definimos. Eu refiz ela várias vezes porque não fiz isso antes.

Mas, veja, quando a gente dobra a folha, pegamos um formato qualquer e destacamos do resto dela.

Isso quer dizer que o formato que ficou dobrado é o mesmo que falta na folha. Do contrário, estaríamos criando folha ou excluindo matéria, o que não é possível no caso de uma simples dobra.

Em outras palavras, os triângulos [tex]AGF[/tex] e [tex]EFG[/tex] são os mesmos. (Eu recomendo que você construa esse desenho e coloque as letras em cada ponto, pra visualizar melhor.)

Isso é o mesmo que dizer que os ângulos de um vão ser os ângulos do outro.

Portanto, os ângulos são equivalentes. (Mesmos ângulos para ambos os triângulos, mudando só de posição.)

Assim, você pode afirmar que [tex]\alpha[/tex] = [tex]\beta _{IV}[/tex]

Se subirmos um pouco a resolução, vamos lembrar que encontramos que [tex]\alpha + \beta _{IV} = 70º\\[/tex]

Se [tex]\alpha = \beta _{IV}[/tex]

Temos:

[tex]\alpha + \alpha = 70º\\2\alpha = 70º\\\alpha = \frac{70º}{2} \\[/tex]

e TCHARAAN!

[tex]\alpha = 35º[/tex]

-------------------------

Força, guerreiro(a). Sucesso e que Deus te abençoe nos estudos.

Answer: A

Step-by-step explanation:

There are 2 ways to solve this problem.

Solution 1:

Since we are given two equations, we set them equal to each other to find where they intersect, the solution.

3x+3=-2x+3                              [combine like terms]

5x=0                                         [divide both sides by 5]

x=0

Now that we have x=0, we can plug it into either equation to find the point of intersection.

y=3(0)+3

y=3

We know that the point of intersection is (0,3).

-------------------------------------------------------------------------------------------------------------

Solution 2:

This way of solving the problem doesn't require any calculations. All it requires is an understanding of slope-intercept form equation. From the two equations given, we know that they are linear lines. Linear lines can only intersect once. Knowing this, we know that there can only be exactly one solution.

Answer: First solve the parentheses using order of operations. Then add and subtract from left to right.

Demo:

(3 * 11) = 33

Equation now looks like:

63 - 21 + 33

63 - 21 = 42

Equation now looks like:

42 + 33

42 + 33 = 75

The value of this expression is 75.

Answer:

Step-by-step explanation:

Answer:

7 and 11.

Step-by-step explanation:

so if we say the 2 "parts" are "a" and "b" then we are left with 2 equations

a + b = 18

ab = 77

a = 18 - b

so if ab = 77

b (18 - b) also equals 77

so

-b^2 + 18b = 77

b^2 - 18b + 77 = 0

So b = 7 and 11

You could also solve this via trial and error, but this is a more analytical approach.

Answer:

Hey there!

a/3=-18

a=-54

Let me know if this helps :)

Answer: Hi! The answer you're looking for is 35

An integer is a positive or negative whole number. Since we're looking at +35 degrees (I put the plus for perspective; it's positive), the integer for the question would be 35.

If this was 35 degrees below 0, it would be -35.

Hope this helps!

Answer:

35

Step-by-step explanation:

j(j + 3) = 1330

Trial and error method:

j and j + 3 are pretty close to each other. Start by taking the square root of 1330.

sqrt(1330) = 36.5. One number is less than 36.5 and the other number if 3 more than that.

Since the product of j and j + 3 is 1330 which ends in 0, it is a multiply of 10 and 5.

Try 35 and 38. 35 * 38 = 1330

Answer: 35

Equation method:

j(j + 3) = 1330

j^2 + 3j - 1330 = 0

(j + 38)(j - 35) = 0

j = -38 or j = 35

Answer: 35

If Jon is 3 years younger than Laura, then Jon's age is 35years.

Let the age of John be j

If Jon is 3 years younger than Laura, then;

Laura's age = j + 3

Based on the question, we are told that the product of their ages is 1,330, this can be expressed as:

j(j+3) = 1330

Expand

j²+3j = 1330

j²+3j - 1330 = 0

j²+38j-35j-1330 =0

j(j+38)-35(j+38) = 0

(j−35)(j+38) = 0

j = 35 and j = -38

j = 35

Hence Jon's age is 35years.

Learn more here: https://brainly.com/question/14294864

Answer: A/D/E

Step-by-step explanation:

2x + y = -5

-2x = y

2x = 4 - y

Answer:

Graph the two struts on the model of the roller coaster. Take a screenshot of your graph and paste the image below, or sketch a graph by hand. (5 points)

Recall that a reinforcement beam will extend from one strut to the other when the two struts are 2 feet apart.

•

• Algebraically determine the x -value of where the beam should be placed. (15 points)

root(x + 8) = 2 + rootx − 4)

x + 8 = 4 + 4root(x − 4) + x − 4

8 = 4root(x − 4)

2 = root(x − 4)

x − 4 = 4

x = 8

• Explain where to place the beam.  (10 points)

The beam should be places 8 feet apart.

Step-by-step explanation:

I don't have a graph. Correct on E2020

Hope that this helps. If someone finds a graph i have a question on my page that needs it

Peace and love

Answer:

Here is the missing graph.

Answer:

[tex] \tan(x) = \sin(x) + \cos(x) [/tex]

Sorry but your question is not too explanatory but I sure hope this helps

the answer is c hope this help's

Answer:

Hey there!

4c+5=27

4c+5-5=27-5

4c=22

c=5.5

Let me know if this helps :)

Answer:

c = 5.5

Step-by-step explanation:

4c + 5 = 27

Subtract 5 from both sides:

4c + 5 - 5 = 27 - 5

4c = 22

Divide the equation by 4:

4c / 4 = 22 / 4

c = 5.5