Um aparelho elétrico tem potência de 6500 watts. É usado quatro vezes ao dia. Sendo o valor do kwhR$0,25 determine o custo de energia elétrica no final de trinta dias, sabendo que o mesmo cada vez que é ligado no dia permanece ligado 2 horas e 36 minutos

The steps of the analytical problem-solving model include: identifying the problem, exploring alternatives, building an implementation plan, implementing a solution, and evaluating the situation.

Analytical problem solving, as we've defined it above, refers to the approaches and methods you use rather than the particular issue you're trying to resolve.

Analytical issue solving is a crucial prerequisite for problem resolution; the problem itself does not determine whether you need it.

Analytical problem solving involves recognising a problem, investigating it, and then creating ideas (such as causes and solutions) around it.

Solving analytical problems calls for inquiry, examination, and analysis that encourages additional study of the subject (including causality, symptoms, and solution).

According to the steps involved in analytical problem solving model:

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The value of the exponential function f(1) is 3.88

Given,

The exponential function f(x)

f(-3.5) = 12

f(6) = 44

We have to find the value of f(1).

Exponential function;

y = abˣ

Where,

a is the initial value

b is the rate of change

Here,

f(-3.5) = 12

y = abˣ

12 = ab⁻³°⁵

a = 12/b⁻³°⁵

Next,

f(6) = 44

y = abˣ

44 = ab⁶

We have a = 12/b⁻³°⁵

Then,

44 = 12/b⁻³°⁵ × b⁶

b²°⁵ =44/12

2.5√b²°⁵  = 2.5√44/12

b = (44/12)^1/2.5

b = 1.68

Then,

44 = ab⁶

a = 44/b⁶

a = 44/ 1.68⁶

a = 1.96

Here,

y = 1.96 × 1.68ˣ

Here,

x = 1

Then,

y = 1.96 × 1.68

y  = 3.88

That is,

The value of the exponential function f(1) is 3.88

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Answer: p=8

Step-by-step explanation:

The answers to the questions involving trigonometry are: 90, BC/AB ÷ BC/AB = 1, g = 6.5, <I = 62 degrees, h= 13.8, 12.0, x = 6.8, x = 66.4, 160.6, The pole = 6.7

Trigonometric ratios are special measurements of a right triangle, defined as the ratios of the sides of a right-angled triangle.  There are three common trigonometric ratios: sine, cosine, and tangent

For page 3 question 3,

a) <A + <B = 90 since <C = right angle

b) SinA = BC/AB and CosB = BC/AB

The ratio of the two angles BC/AB ÷ BC/AB = 1

I notice that the ratio of sinA and cosB gives 1

b) The ratio of CosA and SinB will give

BC/AB ÷ BC/AB

= BC/AB * AB/BC = 1

For page 5 number 3

Tan28 = g/i

g/12.2 = tan28

cross multiplying to have

g = 12.2*tan28

g = 12.2 * 0.5317

g = 6.5

b) the angle I is given as 90-28 degrees

<I = 62 degrees

To find the side h we use the Pythagoras theorem

h² = (12.2)² + (6.5)²

h² = 148.84 +42.25

h²= 191.09

h=√191.09

h= 13.8

For page 6

1) Sin42 = x/18

x=18*sin42

x = 18*0.6691

x = 12.0

2) cos28 = 6/x

xcos28 = 6

x = 6/cos28

x [= 6/0.8829

x = 6.8

3)  Tan63 = x/34

x = 34*tan63

x= 34*1.9526

x = 66.4

4) Sin50 123/x

xsin50 = 123

x = 123/sin50

x = 123/0.7660

x =160.6

5)  Sin57 = P/8

Pole = 8sin57

the pole = 8*0.8387

The pole = 6.7

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The area left for children for playing 114464 sq. m

As per the given data inside a park:

The length of the park is 400 m

The breadth of the park is 300 m

The formula for the area of the park = Length × Breadth

= (400 × 300) sq. m

= 120000 sq. m

The width of the walking track inside the park is 4 m

The length of the park without the walking track

= 400 − (4 + 4) m

= 400 − 8 m

= 392 m

The breadth of the park without the walking track

= 300 − (4 + 2) m

= 300 − 8 m

=292 m

Area of the park without the walking track:

= 392 × 292

= 114464 sq. m

Therefore the area left for children for playing other than the walking track is 114464 sq. m.

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Answer: -3°F

Step-by-step explanation:

From the question, we are informed that the temperature outside changed from 64°F to 43°F over a period of seven days. The total change will be:

= 43°F - 64°F

= -21°F

If the temperature changed by the same amount each day, the daily temperature change will now be:

= -21°F / 7

= -3°F

The temperature decreased by 3°F daily

Answer:

D)  5

Step-by-step explanation:

1,2,2,3,3,3,4,5,6,6,7,7,7,8,9

there are 15 data values so the 8th one is the median

Answer:

The length of each side of Kamila’s square bedroom is;

For the Living room;

For the bedroom;

Recall that the area of Kamila’s rectangular living room is 2.5 times the area of her square bedroom;

Explanation:

Given that the area of Kamila’s rectangular living room is 2.5 times the area of her square bedroom. The length of the living room is 18 feet and its width is 1.25 times the length of a side of the bedroom.

Recall that the area of a rectangle can be calculated using the formula;

For the Living room;

For the bedroom;

Recall that the area of Kamila’s rectangular living room is 2.5 times the area of her square bedroom;

substituting equations 1 and 2 into equation 3;

Therefore, the length of each side of the square bedroom is;

The weighted average price per meal ordered is $27.36. To calculate the weighted average price per meal, we need to consider the quantities of each meal option and their respective prices.

Given that 32 chicken meals are ordered at $32 each, 33 vegetarian meals at $27 each, and 31 vegan meals at $21 each, we can calculate the total cost by multiplying the quantity of each meal option by its price and summing them up.

Total cost = (32 * $32) + (33 * $27) + (31 * $21)

Next, we need to calculate the total quantity of meals ordered, which is the sum of the quantities for each meal option: 32 + 33 + 31.

Finally, the weighted average price per meal is obtained by dividing the total cost by the total quantity of meals.

Weighted average price per meal = Total cost / Total quantity of meals

Performing the calculations, the weighted average price per meal is found to be $27.36, rounded to the nearest cent.

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Answer:

C = F(0.20) + F

Step-by-step explanation:

C is the total cost. F(0.20) will reduce the value of the food to the tip amount required, and then adds the tip value to the price of the food, F.

Example inputs: let F be equal to 10
C = F(0.20) + F turns into C = 10(0.20) + 10

10(0.20) will cause 10 to be multiplied by the tip value, 20%, and 20% is equivalent to 0.20. Once you multiply 10 by 0.20, you get 2. After that, you add 2 to the price of food, which is 10, and you get a total cost of 12.

12 = 10(0.20) + 10

Answer:

24

Step-by-step explanation:

AB = 12

that means BC = 12

Add 2 parts together you get 24

Answer:

AB=12

BC=12

AC=24

i hope that i help you

Answer: Yeah you got it!

Step-by-step explanation:

Your answer is correct because you labeled the quadrants and the point y-axis, x-axis and origin correctly. Remember, the quadrants always go in reverse order; the 1st quadrant on the top right, 2nd on top left, third on bottom left, and 4th on bottom right. Usually you label them in roman numerals. In ordered pairs, the first number is always the x - axis, and the 2nd number is the y-axis.

Hope this helps!

Answer: Your work is correct.

Step-by-step explanation: The x-axis always comes first then the y-axis. The coordinate (4,-3) would be in quadrant 4.

The total sum of squares for a between-groups ANOVA is found by adding the between-group sum of squares (BGSS) and the within-group sum of squares (WGSS) together.

To calculate the total sum of squares, follow these steps:

1. Calculate the between-group sum of squares (BGSS): This represents the variability between the different groups. You can calculate BGSS by finding the squared differences between each group's mean and the overall mean, and then multiplying each squared difference by the number of observations in that group. Finally, sum up these values.

2. Calculate the within-group sum of squares (WGSS): This represents the variability within each group. To calculate WGSS, first find the squared differences between each individual observation and its group mean. Then, sum up these squared differences across all groups.

3. Add the between-group sum of squares (BGSS) and the within-group sum of squares (WGSS) to find the total sum of squares for the between-groups ANOVA.

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We can express the polynomial \(ax^2+bx+c\) as a linear combination of the basis polynomials 1, x, and x^2:

\(ax^2 + bx + c = a(x^2)\)+ b(x) + c(1)

Therefore, we can apply the linear transformation T to each basis polynomial and use linearity to find T(ax^2+bx+c):

T(1) = \(T((1/2)(-2x^2) + (-5)(-0.5x) + (3x^2-1))\)

= \((1/2)T(-2x^2) - 5T(-0.5x-5) + T(3x^2-1)\)

= \((1/2)(-2x^2+2x) - 5(4x^2-3x+2) + (-2x-4)\)

=\(-18x^2 + 29x - 14\)

T(x) = \(T((1/2)(-2x^2) + (-5)(-0.5x) + (3x^2-1)) - T(1)\)

=\((-1/2)T(-2x^2) + 5T(-0.5x-5) - T(3x^2-1) - T(1)\)

= \((-1/2)T(-2x^2) + 5T(-0.5x-5) - T(3x^2-1) - T(1)\)

= \(16x^2 - 23x + 3\)

\(T(x^2) = T(-2x^2) + T(3x^2-1)\)

=\((-2x^2+2x) + (-2x-4)\)

= \(-2x^2 - 2x - 4\)

\(T(ax^2+bx+c) = aT(x^2) + bT(x) + cT(1)\)

= \(a(-2x^2-2x-4) + b(16x^2-23x+3) + c(-18x^2+29x-14)\)

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The following functions can be simplify as follows:

(a) f+g=x²+3x+8

(b) f-g=x²-13x-8

(c) fg=x³+3x²-40x-40

(d) f/g= (x-5)/(x+8) domain is x≠-8.

(a) To find f+g, we simply add the two functions together:

f+g=x^{2}-5x+x+8= x^{2}+3x+8

(b) To find f-g, we subtract g from f:

f-g=x^{2}-5x-(x+8)= x^{2}-6x-8= x^{2}-13x-8

(c) To find fg, we multiply the two functions together

:fg=(x^{2}-5x)(x+8)= x^{3}+3x^{2}-40x-40

(d) To find f/g, we divide f by g:

f/g= (x^{2}-5x)/(x+8)= (x-5)/(x+8)

The domain of this function is all real numbers except for -8, since dividing by zero is undefined. So the domain is x≠-8.

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Let's call the unknown number: X

So, six times a number can be written as:

The quotient of that number and two is:

Therefore, The sum of six times a number and the quotient of that number and two is ten can be written as:

Answer:

Step-by-step explanation:

The questions is incomplete. Here is the complete question.

Points P,Q,R,and S are collinear. Point Q is between P and R, R is between Q and S where  PQ ≈ RS. If PS=25, and PR=19, what is the value of QR

If points P,Q,R,and S are collinear, this means that the four points lies on the same straight line.

If Point Q is between P and R, then PQ+QR = PR ........... 1

Also if R is between Q and S, then QR+RS = QS ...... 2

Given

PS=25

PR=19

RS = PS-PR

RS = 25-19

RS = 6

Since PQ ≈ RS

Hence PQ = RS = 6

From equation 1;

PQ+QR = PR

substituting the resulting values

6+QR = 19

QR = 19-6

QR = 13

Hence the value of QR is 13

Answer:

the common ratio(r): 3

-486,1458,-4374

-486,1458,-4374Step-by-step explanation:

-6×3=18

18×3=-54

54×3=162

162×3=-486

-486×3=1458

1458×3=-4374

therefore the next three terms are,-486,1458,and -4374

Answer:

hi i hope this helps

what's the x= -3,0,3 why does it have 3 numbers

a. the linear approximating polynomial L(x) is 1+x

b. the quadratic approximating polynomial Q(x) is 1 + x + x^2

a. The linear approximating polynomial for a function f(x) centered at the point a can be found using the formula:

L(x) = f(a) + f'(a)(x - a)

where f'(a) is the derivative of the function evaluated at the point a.

b. The quadratic approximating polynomial for a function f(x) centered at the point a can be found using the formula:

Q(x) = f(a) + f'(a)(x - a) + (1/2)f''(a)(x - a)^2

where f''(a) is the second derivative of the function evaluated at the point a.

c. To approximate the quantity 1/(1-x) using the linear and quadratic approximating polynomials obtained in parts a. and b., we need to first find the values of f(a), f'(a), f''(a) at the given point a.

Let's assume a = 0 for simplicity.

a. Linear Approximation:
To find the linear approximating polynomial, we need to evaluate f(0) and f'(0).

f(x) = 1/(1-x)

f(0) = 1/(1-0) = 1

To find f'(0), we need to take the derivative of f(x) and evaluate it at x = 0.

f'(x) = 1/(1-x)^2

f'(0) = 1/(1-0)^2 = 1

Using the linear approximation formula, we can now find the linear approximating polynomial L(x):

L(x) = f(0) + f'(0)(x - 0) = 1 + 1(x - 0) = 1 + x

b. Quadratic Approximation:
To find the quadratic approximating polynomial, we need to evaluate f''(0).

f''(x) = 2/(1-x)^3

f''(0) = 2/(1-0)^3 = 2

Using the quadratic approximation formula, we can now find the quadratic approximating polynomial Q(x):

Q(x) = f(0) + f'(0)(x - 0) + (1/2)f''(0)(x - 0)^2 = 1 + 1(x - 0) + (1/2)2(x - 0)^2 = 1 + x + x^2

Now, we can use these linear and quadratic approximating polynomials to approximate the given quantity 1/(1-x). For example, if we want to approximate the value of 1/(1-x) at x = 0.1, we can substitute x = 0.1 into both L(x) and Q(x) to get the approximate values.

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63 square meters

The formula for calculating the area of a rectangle is expressed as:

A = lw

where

• l is the ,length

• w is the ,width

Given the following parameters

length = 7 meters

width = 9 meters

Substitute the given parameters into the formula

Area= 7m * 9m

Area = 63 square meters

Hence the area of the rectangle is 63 square meters

Answer:

c. 9t+45 that shows distributive property

where it shows a*(b+c)=(a*b)+(b*c).so,9(t+5)=9*t+9*5

Answer: x =-9/5

Step-by-step explanation:

Answer:

Slope: 2/1

equation: y=2/1x+2

Answer:

22320

Step-by-step explanation:

simple interest= p (deposit) × r (rate) × t (time)

=1550×7.2×2

=22320

Answer:

Dom mowed the most and 7/20 is how much is left

Step-by-step explanation:

To compare the answer of which is larger you need a like denominator. Maddy: 5/20

Dom: 8/20

Now what is left for them to do is 7/20.

The probability of a Type II error is represented by beta. Thus, the correct answer is option B.

Beta represents the probability of failing to reject the null hypothesis when it is false.

On the other hand, Type I error (alpha) represents the probability of rejecting the null hypothesis when it is true. A Type II error occurs when a false null hypothesis is not rejected. Hence, beta is the probability of making a Type II error.

The null hypothesis is rejected when the p-value is less than or equal to the level of significance, not exceeds it.

The p-value is the probability of obtaining a result as extreme as or more extreme than the observed result when the null hypothesis is true. If the p-value is less than the level of significance, the null hypothesis is rejected, and vice versa.

Hence, the statement "The null hypothesis is rejected when the p-value exceeds the level of significance" is false.

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The Solution:

Given:

We are required to find the probability that the adult selected has IQ greater than 120.

By the Z-statistic formula, we have:

From the Z score tables, we have:

Therefore, the correct answer is 0.091