Kelly works two jobs. She usually works at a retail store for 7 hours during the day and is paid $23.46 per hour by the store. In the evening she works at a restaurant as a manager for 8 hours and is paid $7.47 per hour, How much does she make on average per hour for the day?​

Answer:

4^30

Step-by-step explanation:

multiply the exponent

1. The balloon's initial temperature was ____ °C.

2. The temperature of the oil is ____ °C.

1. To find the balloon's initial temperature, we can use the combined gas law, which states that the initial pressure times the initial volume divided by the initial temperature is equal to the final pressure times the final volume divided by the final temperature. Given that the volume changes to 76.4% of its initial volume and the final temperature is -80.0 °C, we can solve for the initial temperature. First, we convert the volume change to a decimal by dividing 76.4% by 100, giving us 0.764. Plugging in the values into the combined gas law equation, we can rearrange it to solve for the initial temperature.

2. To determine the temperature of the oil, we can use the ideal gas law, which states that the pressure times the volume divided by the temperature is equal to the gas constant times the number of moles. Since the volume remains constant and we are given the initial and final pressures, we can solve for the temperature. By plugging in the values into the ideal gas law equation and solving for the temperature, we can find the temperature of the oil in °C.

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The coordinates of point P along the directed line segment AB with a ratio of 1:4 are (-5, -2).

Since the ratio of AP to PB is 1:4, we can use the midpoint formula to find the coordinates of point A. The midpoint formula is

((x₁ + x₂)/2, (y₁ + y₂)/2)

Plugging in the coordinates of points P and B, we get:

((4(-7) - 2)/5, (4(-5) + 0)/5) = (-30/5, -20/5) = (-6, -4)

we can use the point-slope formula to find the equation of the line segment AB:

(y - (-4)) = (1/5)(x - (-6))

Simplifying this equation, we get:

y = (1/5)x + 2

Finally, we can use the given ratio of 1:4 to find the coordinates of point P. Since the ratio of AP to PB is 1:4, we can use the ratio formula to find the coordinates of point P:

(x, y) = (4(-5) + (-2))/5, (4(-2) - (-4))/5) = (-30/5, 12/5) = (-6, 2.4)

Rounding off to one decimal place, we get the coordinates of point P as (-5, -2).

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We have a scale 2 in to 1 ft.

In order to write the ratio, we have to have the same units for both sides of the scale.

Remembering that 1 ft is 12 inches, we can convert them as:

Answer: the scale is 1:6, meaning that one unit in the drawing represents 6 units of the swimming pool.

For this problem, we are given the mean and standard deviation for the height of men. We need to calculate the minimum height to be considered in the top 10% of tallest men, and the maximum height to be considered in the shortest 15% of men.

The first step we need to solve this problem is to calculate the z-score. The z-score can be found by using the following expression:

For the first situation, we want a z-score for the top 10% of tallest men. This means that we need to go on the z-table and find the z-score that represents 90% of probability to the left because this will give us the minimum height to be at the 10% tallest. From the z-table we have:

Now we can use the z-score expression to find the value of x. We have:

The man should be at least 71.85 inches tall to be considered among the 10% of tallest men.

For the second situation, we have something similar. We need to find the maximum height for a man to be considered between the 15% of men. We need to go into the z-table and find the z-score that produces a result close to 0.15. We have:

Now we need to use the z-score expression to determine the height:

In order to be considered among the smallest men, someone needs to be 64.88 inches tall.

Answer:

• \((w \cdot u) (7)\) =  \(\bf 8\)

• \((u \cdot w) (7)\)  =  \(\bf 22\)

Step-by-step explanation:

We are given:

\(u(x) = x^2 + 6\)

\(w(x) = \sqrt{x + 9}\).

• \((w \cdot u) (7)\). read as "w of u of 7", means we have to input 7 into the function \(u(x)\), and use the output we get as input for the function \(w(x)\) :

\((w \cdot u) (7)\)

⇒ \(w(u(7))\)

⇒ \(w(7^2 + 6)\)

⇒ \(w(55)\)

⇒ \(\sqrt{55 + 9}\)

⇒ \(\sqrt{64}\)

⇒ \(\bf 8\)

• Similarly, we can evaluate \((u \cdot w) (7)\) :

\((u \cdot w) (7)\)

⇒ \(u(w(7))\)

⇒ \(u(\sqrt{7 + 9})\)

⇒ \(u(\sqrt{16})\)

⇒ \(u(4)\)

⇒ \(4^2 + 6\)

⇒ \(\bf 22\)

The answers are :

(w o u)(7) = 8

(u o w)(7) = 22

To find the first answer, substitute u(x) in w(x), and set x = 7.

To find the second answer, substitute w(x) in u(x), and set x = 7.

Answer:

10

Step-by-step explanation:

Answer: c

Step-by-step explanation:

bc im dat good

Answer:

$18

Step-by-step explanation:

1 pound of raisins = $2

1 pound of almonds = $5

Let the number of raisins be represented by a

Let the number of almonds be represented by b

We are told in the question that:

Six pounds of a trail mix contains 2 more pounds of raisins than almonds.

a + b = 6 pounds

Hence, Almonds = 2 pounds

Raisins = 4 pounds

The cost of the 6 pounds of trail mix

= 4 × $2 + 2 × $5

=$8 + $10

= $18

We are given three sets of quantum numbers and need to determine the number of electrons that could have these quantum numbers. For n=5, c=2, the maximum number of electrons is 50. For n=6, l=2, ml=-1, the maximum number of electrons is 10.

The quantum numbers specify the energy level (n), the azimuthal quantum number (l), and the magnetic quantum number (ml). By applying the rules for assigning electrons to quantum numbers, we can calculate the maximum number of electrons for each set.

For the set n=, the quantum number n alone does not provide enough information to determine the number of electrons. We need additional quantum numbers such as l and ml to determine the specific electron configuration.

For the set n=5, c=2, the values n=5 and c=2 correspond to the principal quantum number and the azimuthal quantum number, respectively. According to the rules, the maximum number of electrons in a given energy level (n) is given by 2n^2. Therefore, for n=5, the maximum number of electrons is 2(5)^2 = 50.

For the set n=6, l=2, ml=-1, the values n=6, l=2, and ml=-1 correspond to the principal quantum number, azimuthal quantum number, and magnetic quantum number, respectively. The maximum number of electrons in a given energy level (n) and azimuthal quantum number (l) is given by 2(2l+1). Therefore, for n=6 and l=2, the maximum number of electrons is 2(2*2+1) = 10.

In summary, the number of electrons that could have these sets of quantum numbers are as follows:

For n=, the number of electrons cannot be determined without additional information.

For n=5, c=2, the maximum number of electrons is 50.

For n=6, l=2, ml=-1, the maximum number of electrons is 10.

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The number of pieces in the bowl before she added the 20 is 8 pieces of candy

Here, we want to get the number of pieces in the bowl before the addition of the 20 pieces

Let the number of pieces before the addition be n

she added 20 pieces to what is there initially, this brings the total to;

Now, two days after the addition, half of the above is gone

Half of the above is;

Now, the difference between the number of pieces in the bowl after the addition of the 20 and the half gone is 14; we have the equation as thus;

Answer:

$637

Step-by-step explanation:

[0.3105, 0.3695] expect to buy a new car next year.

These are the answer choices -

A) [0.3074, 0.3726]

B) [0.3105, 0.3695]

C) [0.3140, 0.3660]

D) [0.3392, 0.3408]

It is given that a sample of 1,400 American households was asked if they planned to buy a new car next year. Of the respondents, 34% indicated they planned to buy a new car next year.

For large random samples, a confidence interval for a population proportion is given by

\(sample proportion\) ± \(z * \frac{\sqrt{sample proportion (1 - sample proportion)} }{n}\)

where z* is a multiplier number that comes from the normal curve and determines the level of confidence (see Table 9.1 for some common multiplier numbers).

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ARCH (Autoregressive Conditional Heteroscedasticity) models are estimated using Maximum Likelihood (ML) estimation. Regarding Question 7, if the model has the given conditional variance function, it corresponds to an ARCH(3) model.

In the case of ARCH models, the ML estimation process involves the following steps:

1. Specify the ARCH model: Determine the appropriate order of the ARCH model by analyzing the autocorrelation and partial autocorrelation functions of the squared residuals (or other suitable diagnostic tests). For example, an ARCH(3) model implies that the conditional variance at time t depends on the squared residuals at time t-1, t-2, and t-3.

2. Formulate the likelihood function: The likelihood function specifies the probability of observing the given data under the assumed ARCH model. In ARCH models, the likelihood function is constructed based on the assumption that the errors follow a normal distribution with mean zero and a time-varying conditional variance.

3. Maximize the likelihood function: The goal is to find the parameter values that maximize the likelihood function. This is typically achieved using numerical optimization techniques, such as the Newton-Raphson algorithm or the BFGS algorithm.

4. Estimate the parameters: Once the likelihood function is maximized, the estimated parameter values are obtained. These estimates represent the best-fitting values that maximize the likelihood of observing the given data.

Therefore, the answer to Question 7 is: ARCH(3).

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Answer:

it increases

Step-by-step explanation:

hope this helps <3

Answer:

The answer is it increases

Step-by-step explanation:

In the theater, that have 1,464 seats.

1426 seats are in "regular" sections

38 seats are  "premium" front-row section

The seat arrangement is solved by division. In this case the 62 equal spaced is the divisor while the number of seats is the in each row is the quotient

The division is as follows

1464 / 62

= 23 19/31

The number of seats in the regular section is 23 * 62 = 1426

The remainder will be arranged in premium front row

using equivalent fractions

19 / 31 = 38 / 62

the remainder is 38 and this is the seat for the premium front row section

OR 1464 - 1426 = 38 seats

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The time it will take to cover another distance of 145 miles is; 2.5 hours

We are given;

First distance driven = 348 miles

Time taken for first distance = 6 hours

Formula for speed is;

Speed = Distance/Time taken

Thus;

Speed for fist distance = 348/6

Speed = 58 mph

Now, at the same speed she wants to cover another distance 0f 145 miles. Thus;

Time taken = distance/speed

Time taken = 145/58

Time taken = 2.5 hours

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The Probability that the tennis team won 9  games is 1.35% , under the given condition that the tennis team wins 73% of their game,  if they play 10 games.

Therefore, probability of winning nine games out of ten with a 73% win rate can be evaluated using the binomial distribution formula
\(P(X=k) = (n choose k) * p^k * (1-p)^{(n-k)}\)

Here
P(X=k) = probability of winning k games out of n games
n = total number of games played (n=10)
k = number of games won (k=9)
p = probability of winning a single game (p=0.73)

Staging the values in the formula
\(P(X=9) = (10 choose 9) * 0.73^9 * (1-0.73)^{(10-9)}\)
= ( 10 - 9) x (0.05) x ( 0.27)¹

= 1 x 0.05 x 0.27

= 0.0135

Converting into percentage

0.0135 x 100

= 1.35%

The probability that the tennis team won 9  games is 1.35% , under the given condition that the tennis team wins 73% of their game,  if they play 10 games.

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(0, 2) is the y intercept of the given graph, option B is correct.

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

The line is passing through the points (3, 0) and (0,2)

We have to find the slope

m=2/-3

=-2/3

Now let us find y intercept

0= -2/3(3) +b

b=2

Hence, (0, 2) is the y intercept of the given graph, option B is correct.

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In the Histogram the horizontal line (dimension) represents the value of the selected collection plan element. The vertical line (dimension) represents the count or sum of occurrences of the primary collection element on the horizontal line.

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The solution to the question is:

c is 6 = \(\sqrt{a^{2} + b^{2} -2abcosC }\)

b is 5 = \(\sqrt{a^{2} + c^{2} -2accosB }\)

cosB is 2 = \(\frac{a^{2} + c^{2} - b^{2} }{2ac}\)

a is 4 = \(\sqrt{b^{2} + c^{2} -2bccosA }\)

cosA is 3 = \(\frac{b^{2} + c^{2} -a^{2} }{2bc}\)

cosC is 1 = \(\frac{b^{2} + a^{2} - c^{2} }{2ab}\)

it is used to relate the three sides of a triangle with the angle facing one of its sides.

The square of the side facing the included angle is equal to the some of the squares of the other sides and the product of twice the other two sides and the cosine of the included angle.

Analysis:

If c is the side facing the included angle C, then

\(c^{2}\) = \(a^{2}\) + \(b^{2}\) -2ab cos C-----------------1

then c =  \(\sqrt{a^{2} + b^{2} -2abcosC }\)

if b is the side facing the included angle B, then

\(b^{2}\) = \(a^{2}\) + \(c^{2}\) -2accosB-----------------2

b =  \(\sqrt{a^{2} + c^{2} -2accosB }\)

from equation 2, make cosB the subject of equation

2ac cosB =  \(a^{2}\) +  \(c^{2}\) - \(b^{2}\)

cosB =  \(\frac{a^{2} + c^{2} - b^{2} }{2ac}\)

if a is the side facing the included angle A, then

\(a^{2}\) = \(b^{2}\) + \(c^{2}\) -2bccosA--------------------3

a =  \(\sqrt{b^{2} + c^{2} -2bccosA }\)

from equation 3, making cosA subject of the equation

2bcosA =  \(b^{2}\) +  \(c^{2}\)  - \(a^{2}\)

cosA =  \(\frac{b^{2} + c^{2} -a^{2} }{2bc}\)

from equation 1, making cos C the subject

2abcosC =  \(b^{2}\) + \(a^{2}\) -  \(c^{2}\)

cos C =  \(\frac{b^{2} + a^{2} - c^{2} }{2ab}\)

In conclusion,

c is 6 = \(\sqrt{a^{2} + b^{2} -2abcosC }\)

b is 5 = \(\sqrt{a^{2} + c^{2} -2accosB }\)

cosB is 2 = \(\frac{a^{2} + c^{2} - b^{2} }{2ac}\)

a is 4 = \(\sqrt{b^{2} + c^{2} -2bccosA }\)

cosA is 3 = \(\frac{b^{2} + c^{2} -a^{2} }{2bc}\)

cosC is 1 = \(\frac{b^{2} + a^{2} - c^{2} }{2ab}\)

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Answer:

(4, 2 )

Step-by-step explanation:

Given a graph of a system of equations, then the solution is at the point of intersection of the 2 lines.

The lines intersect at (4, 2 ) ← solution

Answer:

26 display cases

Please give brainliest!
Hope this helps :)

if Jamaal has 1920 stamps, and he wants to place them in diplay cases that can each hold 72 stamps, we figure out how many display cases can be filled with stamps by finding out 1920/72

This gives us 26 2/3, but 2/3 isn't 1.

he can fill 26 cases

Answer:

3/7 ; -7

Step-by-step explanation:

1)

(7-4)/(10-3)

3/7

2) -7 because is the number that multiplies x

Answer:

The hundredths place is where its at

Answer:

Hundredths place.

Step-by-step explanation:

Hi so their race times are the same up to that fourth number.

In a number with a decimal anything after the dot goes: tenths, hundredths, thousandths and so on.

In both number we  just go two more places so it would be hundredths.

Hope this helps! Have a great day/night <3

Answer:

The y intercept is (0,-1)

Step-by-step explanation:

To find the y intercept, let x = 0

y = -x^2 -6x-1

y = -0^2-6(0) -1

y = -1

The y intercept is (0,-1)

Answer:

y = 3x + 1

Step-by-step explanation:

The least square solution using svd matrix that has minimal norm is calculated using factorization .

What is Least Square Method ?

The least squares method is used in finding best fit for a set of data points by minimizing sum of offsets from plotted curve.

The SVD (Singular value decomposition) is a factorization of a real/complex matrix.

This technique is widely used to decompose a matrix into several component matrices, which exposes many of useful and interesting properties of original matrix.

The system of equation is Ax=b, we calculate the SVD of A by A=UΣVT. The matrices U , VT have a special property that they are unitary matrices.

The main benefits of having unitary matrices like U and VT is , if we multiply one of these by its transpose, the result equals the identity matrix.

Therefore , factorization is  used to find the least square solution .

The given question is incomplete , I answer the question in general according to my knowledge

Calculate least squares solution using svd a matrix has the singular value decomposition what is the solution to the least-squares problem that has minimal norm ?

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Answer:

920,160

Step-by-step explanation:

1.6 times 10^2 is 160

9.2 times 10^5 is 920,000

920,000+160= 920,160

Answer:

920,160

Step-by-step explanation:

Answer: 697

Step-by-step explanation:

(9)(3)(9)(3)−(12)(3)+4

=(27)(9)(3)−(12)(3)+4

=(243)(3)−(12)(3)+4

=729−(12)(3)+4

=729−36+4

=693+4

=697

In a relation, where the input is the number of people and the output is the number of sweaters the anser to the question is  relation a function is C. No, because the same number of people might have a different number of sweaters.

A mathematical function is , rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable). In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.

Hence, from the question, we can see that the number of the people do not equate the number of sweaters. Therefore, option C is correct.

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