Help - I need the range for the graph

The proportion of 1040r tax forms completed in less than 77 minutes = 0.06301

How to find the proportion of the tax forms?

The time required to complete a 1040r tax form = normally distributed

Mean = \(\mu\) = 100 minutes

Standard deviation  = \(\sigma\) = 15 minutes

The proportion of 1040r tax forms completed in less than 77 minutes is given by ,

P( X< 77 ) = P ( Z < \(\frac{77-100}{15}\)  )

                = P( Z < - 1.53 )

                =0.06301

Cumulative probability in the normal distribution =0.06301 or 6.301%

What is normal distribution?

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Answer:

Step-by-step explanation:

A1 = 9 x 4 = 36

A1 = 4 x 3 = 12

Total = 36 + 12

        = 48 in²

Answer:

4 5/8

Step-by-step explanation:

7 7/8= 63/8

3 1/4= 13/4= 26/8

63/8 - 26/8= 37/8

37/8= 4 5/8

Answer: 120 yds

Step-by-step explanation:

48+30+24+18+120 yds

the price was really to be honest "x", which oddly enough is the 100%, but we also know you bought it at 5% off, so you really bought it for 100% - 5% = 95%, and we also know that what you paid was 270.75 bucks, so 270.75 is 95%, what the dickens is the 100% of "x" then?

\(\begin{array}{ccll} amount&\%\\ \cline{1-2} x & 100\\ 270.75& 95 \end{array} \implies \cfrac{x}{270.75}~~=~~\cfrac{100}{95} \\\\\\ 95x=27075\implies x=\cfrac{27075}{95}\implies x=285\)

Using the radius of the Ferris wheel and the angle between the two positions, the time spent on the ride when they're 28 meters above the ground is 12 minutes

The radius of the Ferris wheel is 30 / 2 = 15 meters.

The highest point on the Ferris wheel is 15 + 4 = 19 meters above the ground.

The time spent higher than 28 meters is the time spent between the 12 o'clock and 8 o'clock positions.

The angle between these two positions is 180 degrees.

The time spent at each position is 10 minutes / 360 degrees * 180 degrees = 6 minutes.

Therefore, the total time spent higher than 28 meters is 6 minutes * 2 = 12 minutes.

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Answer:

6.09

Step-by-step explanation:

3.59 + 5 - 2.5 = 6.09

hope this helps...

The present age of mother and her daughter respectively are; 40 and 10 years respectively.

Let x and y be the present age of mother and her daughter respectively.

Therefore;

x + y = 50

x = 50 − y     .....(1)

After 20 years, mother's age will be twice her daughter's age at the time. Thus;

x + 20 = 2(y + 20)

x − 2y = 20     .....(2)

Plugging eq 1 into eq 2 gives us;

50 − y − 2y = 20

3y = 30

y = 10

Thus;

x = 50 − 10

x = 40

Thus, the present age of mother and her daughter is 40 and 10 years respectively.

Translation of the question into English is;

The sum of the present ages of mother and her daughter is 50 years. After 20 years, mother's age will be twice her daughter's age at the time. Find their present ages.

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Answer:

65 boletos.

Step-by-step explanation:

Sabemos que el precio para un niño es 6 dólares, y el precio para un adulto es 9,20 dólares. Además, el cine se vendió 146 boletos, y recibió 1135,20 dólares.

Vamos a resolver este problema con un sistema, usando 2 varibles.
No sabemos cuantos boletos de niño el cine vendió, entonces el cine vendió <<x>> boletos de niños. Tampoco sabemos cuantos boletos de adultos vendió, entonces vendió <<y>> boletos de adultos.

En total, vendió 146 boletos; el número de los boletos de niños con el número de los boletos de adultos es 146 boletos.

Usando las variables, x + y = 146 boletos.

Esta es una de las equaciones que necesitamos.

Porque todos los boletos de niños es 6 dólares, si el cine vendió <<x>> boletos, su total de ventas (de boletos de niños) es <<6x>> dólares.

Lo mismo es verdad para los boletos de adultos; todos los boletos de adultos es 9,20 dólares, entonces si vendió <<y>> boletos, el total de ventas de boletos de adultos es <<9,20y>> dólares.

En total, las ventas de los boletos de niños + las ventas de los boletos de adultos es 1135,20 dólares.

O, con variables, es 6x + 9,20y = 1135,20

Nuestra sistema es:

x + y = 146

6x + 9,20y = 1135,20

Ahora necesitamos resolver esta sistema.

Podemos usar la sustitución. Vamos a resolver una de las eqaciones para una variable, y después, usar el valor de esa variable para encontrar la solución para una de las variables, y después, usar  esa solución para encontrar la solución de la otra variable.

Podemos mover <<y>> al otro lado.

x + y = 146 => x = 146 - y

Ahora, podemos sustituir <<x>> para 146 - y en 6x + 9,20y = 1135,20

6(146-y) + 9,20y = 1135,20

Multiplica.

876 - 6y + 9,20y = 1135,20

Combina los términos que son los mismos.

876 + 3,20y = 1135,20

Mueva 876 al otro lado.

876 + 3,20y = 1135,20 => 3,20y = 259,20

Divide todo por  3,20.

3,20y/ 3,20 = 259,20/ 3,20

y = 81

Entonces, el cine vendió 81 boletos de adultos.

Recuerda, esta (81 boletos de adultos) no es lo que necesitamos. Necesitamos cuantos boletos de niños vendió.

Entonces, podemos substituir <<y>> con 81 en x = 146 - y. Recuerda que <<x>> es cuantos boletos de niños vendió.

x = 146 - y => x = 146 - 81 => 65

Entonces, el cine vendió 65 boletos de niños.

Answer:

2850

Step-by-step explanation:

19% of 15000 is 2850

\(\textbf{19\% prefer sedans}\)

\(\textbf{The company should plan on manufacturing}\\\\ \textbf{19\% of the cars as sedans}}\)

\(19\% \times 15000 = 2850\)

\(\textbf{2,850 sedans}\)

Please find the attached photograph for their positions.

Hope you could get an idea from here

Doubt clarification - use comment section.

Answer:

Charlotte has traveled approximately 379.1236 feet during the 4.39 seconds that she took her eyes off the road.

Step-by-step explanation:

To solve this problem, we can use the formula:

distance = rate x time

We know that Charlotte is driving at a rate of 58.8 mi/h, but we need to convert this to feet per second so that it's in the same units as the time given to us. We can do this by using the conversion factor 1 mi = 5280 ft, and 1 h = 3600 s:

58.8 mi/h = 58.8 x 5280 ft/3600 s = 86.24 ft/s (rounded to two decimal places)

Now we can plug in the rate and time values to find the distance traveled:

distance = rate x time

distance = 86.24 ft/s x 4.39 s

distance = 379.1236 ft (rounded to four decimal places)

Therefore, Charlotte has traveled approximately 379.1236 feet during the 4.39 seconds that she took her eyes off the road.

Charlotte's speed of 58.8 miles per hour is approximately 86.4 feet per second. Given she looked at her phone for 4.39 seconds, she would travel around 379 feet during that time.

This is a question about converting units and using velocity to calculate distance in physics. Charlotte is driving at a speed of 58.8 miles per hour. We first need to convert this speed into feet per second since the time she takes her eyes off the road is given in seconds and we are asked for the distance in feet. There are 5280 feet in one mile and 3600 seconds in one hour.

So, 58.8 mi/h equals 58.8 * 5280 feet/3600 seconds = 86.4 feet per second.

Now, to find out how far Charlotte traveled during the 4.39 seconds she was looking at her phone, we multiply her speed in feet per second by the time in seconds. Thus, 86.4 ft/s * 4.39 s = 379.056 feet. Hence, she traveled approximately 379 feet.

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Answer:

12 boys

Step-by-step explanation:

\(5/8*32/1\)

Cross simplify

\(5/1*4/1= 20\)

That means that there are 20 girls in the class.

32-20= 12

Answer:

if its a 90 degree angle u will  say 90 -46 to get m<2

if is a 180 degree angle u will say 180-46 to get m<2

hope this helped :) brainliestn pls

Replace h in the equation with 21 hours and solve for d:

D = 8/6(21) + 4 1/2

D = 28 + 4 1/2

D = 32 1/2

As a decimal: 32.5

Answer:

6 !

3 !

log 2 ( 16 )

log 13 ( 28 )

Answer:

25

Step-by-step explanation:

Distribute -5 through the parentheses

10n-10n+25

Subtract

10n-10n=0

Leaving you with 25 as your answer

Answer:

10 percent is the answer

Step-by-step explanation:

Answer:

Volume is length x width x height. So it depends on the labeled sides. Maybe define what is length and width and height OR multiply all is your instructions call for it.

Step-by-step explanation:

Answer:

7)  Domain:  (-∞, ∞)

    Range:  [-1, ∞)

8)  Domain:  (-∞, ∞)

    Range:  (-∞, ∞)

Step-by-step explanation:

Interval notation

( or ) : Use parentheses to indicate that the endpoint is excluded.

[ or ] : Use square brackets to indicate that the endpoint is included.

Domain & Range

The domain is the set of all possible input values (x-values).

The range is the set of all possible output values (y-values).

From inspection of the graph, the line is continuous.

The arrows either end of the line indicate that the line continues indefinitely in those directions.

Therefore, the domain of the relation is unrestricted:  (-∞, ∞)

From inspection of the graph, the minimum y-value is y = -1.  

The end behavior of the relation is:

\(y \rightarrow + \infty, \textsf{as } x \rightarrow - \infty\)

\(y \rightarrow + \infty, \textsf{as } x \rightarrow +\infty\)

Therefore, the range of the relation is restricted:  [-1, ∞)

From inspection of the graph, the line is continuous.

The arrows either end of the line indicate that the line continues indefinitely in those directions.

Therefore, the domain of the relation is unrestricted:  (-∞, ∞)

The end behavior of the function is:

\(y \rightarrow + \infty, \textsf{as } x \rightarrow - \infty\)

\(y \rightarrow -\infty, \textsf{as } x \rightarrow +\infty\)

Therefore, the domain of the relation is unrestricted:  (-∞, ∞)

Answer:

\( \longmapsto - 3 \frac{3}{8} - \frac{7}{8} \\ = - \frac{27}{8} - \frac{7}{8} \\ = \frac{ (- 27 - 7)}{8} \\ = \frac{( - 34)}{8} \\ = \frac{ (- 34) \div 2}{(8) \div 2} \\ = \frac{ - 17}{4} \\ = \boxed{ - 4 \frac{1}{4} }✓\)

Answer:

\(\angle ABC =60\)

Step-by-step explanation:

Given

\(\angle CAB = 75\)

The attached triangle

Required

Find \(\angle ABC\)

First, calculate \(\angle BCA\)

\(\angle BCA + 135 = 180\) --- angle on a straight line

\(\angle BCA = 180 - 135\)

\(\angle BCA = 45\)

\(\angle ABC\) is then calculated using:

\(\angle ABC + \angle BCA + \angle CAB =180\) -- angle in a triangle

\(\angle ABC + 45+ 75=180\)

\(\angle ABC =- 45- 75+180\)

\(\angle ABC =60\)

14. The trigonometric equation (sin47°/cos43°)² + (cos43°/sin47°)² - 4cos²45° = 4

15. In the trigonometric equation 2(cos²θ - sin²θ) = 1, θ = 15°

A trigonometric equation is an equation that contains a trigonometric ration.

14. To find the value of (sin47°/cos43°)² + (cos43°/sin47°)² - 4cos²45°, we proceed as follows

Since we have the trigonometric equation (sin47°/cos43°)² + (cos43°/sin47°)² - 4cos²45°,

We know that sin47° = sin(90 - 43°) = cos43°. So, substituting this into the equation, we have that

(sin47°/cos43°)² + (cos43°/sin47°)² - 4cos²45° = (cos43°/cos43°)² + (cos43°/cos43°)² - 4cos²45°

= 1² + 1² - 4cos²45°

We know that cos45° = 1/√2. So, we have

1² + 1² - 4cos²45° = 1² + 1² - 4(1/√2)²

= 1 + 1 + 4/2

= 2 + 2

= 4

So, (sin47°/cos43°)² + (cos43°/sin47°)² - 4cos²45° = 4

15. If 2(cos²θ - sin²θ) = 1 and θ is a positive acute angle, we need to find the value of θ. We proceed as follows

Since we have the trigonometric equation 2(cos²θ - sin²θ) = 1

We know that cos2θ = cos²θ - sin²θ. so, substituting this into the equation, we have that

2(cos²θ - sin²θ) = 1

2(cos2θ) = 1

cos2θ = 1/2

Taking inverse cosine, we have that

2θ = cos⁻¹(1/2)

2θ = 30°

θ = 30°/2

θ = 15°

So, θ = 15°

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Answer:

p: x = 4  

q: y = -2

If p happens then q will also happen

Step-by-step explanation:

Given two propositions, we want to rearrange them in a conditional statement.

The correct answer is:

p → q

First, a conditional statement is something of the form:

If [Hypothesis] then [Conclusion]

So, if the first part is true, then the second part must be true.

Now, here we have two propositions:

p: "x  = 4"

q: "y = -2"

We want to write:

"if x = 4, then y = -2"

this is just written as: "p implies q" or:

p → q

Where "→" means "then", and the initial "if" is tacit.

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Answer:

Yes

Step-by-step explanation:

Because 18 or Older Can Vote for a Federal Election

Like my Brother

18 Years old He Vote in A Federal Election

#Carry on learning

Correct me if I'm wrong

Answer:

60

Step-by-step explanation:

The area of the space available for onions is:n12 square feet - 0.12x square feet. number of onion bulbs Mark can plant is: (12 - 0.12x) / y

What is percentage?

Percentage is a way of expressing a number or proportion as a fraction of 100. It is represented by the symbol "%".

Mark has marked off a certain percentage of the 12 square feet to save for a tomato plant, which means the remaining space will be used for onions.

Let's say Mark marks off x% of the space for the tomato plant. That means he will have (100-x)% of the space for onions.

The area of the space reserved for the tomato plant is:

12 square feet x (x/100) = 0.12x square feet

The area of the space available for onions is:

12 square feet - 0.12x square feet

Let's say each onion bulb needs y square feet of room to grow. Mark can plant as many onion bulbs as can fit in the remaining space, which is:

(12 square feet - 0.12x square feet) / y

So the number of onion bulbs Mark can plant is:

(12 - 0.12x) / y.

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Answer: the answer is (3,-2)

Step-by-step explanation: when you rotate a point about the origin 180 degrees clockwise, (x,y) turns into (-x,-y)

therefore

(-3,2) becomes (3,-2)

I'm pretty sure

Answer:

D

Step-by-step explanation:

We can substitute x=2 into f(x).

f(2) = 80.402(0.931²), which is about 70