Dora has saved $35. She earns $9.50 per hour at her job.
How many hours must she work to have a total of $358 in her savings?

3,069 hours


41 hours


34 hours


10 hours

Answer:

x=3

Step-by-step explanation:

7+4(5/4x-1)=18

7+5x-4=18

3+5x=18

5x=15

x=3

Answer:

x = 3

Step-by-step explanation:

18 = 7 + 4(\(\frac{5}{4}\)x - 1)

18 = 7 + 5x - 4

18 = 3 + 5x

15 = 5x

x = 3

The new population mean after changing one score from 20 to 5 is 7.8 for a population of N 5 15 scores has a mean of m 5 8.

To calculate the new population mean, we need to consider the effect of the changed score. The original population had N scores with a mean of 8. By changing one score from 20 to 5, we are essentially replacing the value of 20 with 5 in the population.

The sum of the original scores is N * 8 since the mean is equal to the sum divided by N. After changing the score, the sum of the population becomes (N * 8) - 20 + 5, which simplifies to (N * 8) - 15.

The new population mean, denoted by m', is now equal to this new sum divided by N. Therefore, m' = ((N * 8) - 15) / N. Simplifying further, we get m' = 8 - (15 / N).

Since the value of N is given as 5 to 15, we can substitute these values one by one to obtain the corresponding new population means. For N = 5, m' = 8 - (15 / 5) = 5. For N = 6, m' = 8 - (15 / 6) ≈ 5.5. We can continue this process for each value of N from 5 to 15. However, since the range is large, it is not possible to generate the exact values without a specific value for N. Nevertheless, the general trend suggests that the new population mean will be lower than the original mean of 8, with a decreasing value as N increases.

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Answer:

1 in 5

Step-by-step explanation:

Question 9: No, 10n + 20 is not in O(n^2) .Question 10: No, 2n^2 + 10 is not in o(n). Question 11: Yes, 5n^2 + 2 is in ω(n). Question 12: Yes, 2n + 10 is in ω(n^2). In the context of asymptotic notation, the notation "O" represents an upper bound, while "o" represents a strict upper bound.

On the other hand, the notation "ω" represents a lower bound.

In Question 9, the function 10n + 20 grows linearly with respect to n, and it does not exhibit quadratic growth. Therefore, it is not in O(n^2).

In Question 10, the function 2n^2 + 10 grows quadratically with respect to n, and it does not grow at a slower rate compared to n. Therefore, it is not in o(n).

In Question 11, the function 5n^2 + 2 grows quadratically with respect to n, and it grows at a faster rate compared to n. Therefore, it is in ω(n).

In Question 12, the function 2n + 10 grows linearly with respect to n, and it grows at a faster rate compared to n^2. Therefore, it is in ω(n^2).

These answers provide insights into the growth rates and comparisons between different functions, allowing us to understand how they scale and compare as the input size increases.

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The token has eight possible moves: four cardinal directions (up, down, left, right) and four diagonal directions (left-up, right-up, left-down, right-down).

If we consider a token positioned on an arbitrary square of a grid, and we are allowed to move the token diagonally to the adjacent right-up square, we can determine the number of possible moves.

Let's assume the token is on a square in a grid, and let's label the directions as follows:

```

1  2  3

4  T  5

6  7  8

```

where T represents the token, and the numbers 1-8 represent the possible directions the token can move.

In this scenario, the token can move in the following ways:

1. Move left (direction 4)

2. Move right (direction 5)

3. Move up (direction 2)

4. Move down (direction 7)

5. Move diagonally left-up (direction 1)

6. Move diagonally right-up (direction 3)

7. Move diagonally left-down (direction 6)

8. Move diagonally right-down (direction 8)

Therefore, the token has eight possible moves: four cardinal directions (up, down, left, right) and four diagonal directions (left-up, right-up, left-down, right-down).

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The expression that shows the granola bars Todd bought is 12g.

The algebraic expression stands for the mixture of variables, coefficient, constant, or all three in a mathematical form where both sides are set equivalent to each other.

Given: Todd bought g boxes of granola bars.

There are 12 granola bars in each box.

Let g be the boxes of granola bars.

Therefore, the expression that shows the granola bars Todd bought is 12g.

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Answer:

-1/3

Step-by-step explanation:

Use rise over run (y2 - y1) / (x2 - x1)

Plug in the 2 points:

(y2 - y1) / (x2 - x1)

(-2 + 1) / (2 + 1)

-1/3

So, the slope is -1/3

Answer:

Four squared equals 16

Step-by-step explanation:

Answer:

4\( \sf {}^{2}\) = 16.

Step-by-step explanation:

Finding the Square of a Number is a simple method. We need to multiply the given number by itself to find its square number. The square term is always represented by a number raised to the power of 2. The square of 4 is 4 multiplied by 4, i.e., 4×4 = 4\( \sf {}^{2}\) = 16.

Answer:

9.5 ft

Step-by-step explanation:

Since it is a rectangle. The lengths are the same and the widths are the same.

12.4 + 12.4 = 24.8

43.8 - 24.8 = 19

19/2 = 9.5

The Correct Answer Is:  High-strength sports.

explanation:

Because for wrestling you have to use, you're strength. (And I just did the exam and I got it wrong for choosing the wrong answer, so I believe it's my answer. !!so, it's not high-power sports)

I hope it helps you!

:)

Answer:  Either 70% or S=0.7x

Step-by-step explanation:

I'm unclear as to what the question really wants.  A "rate of success" is simply an expected percentage of future shots that will score on a free throw.  Since the only statistic we are given is the 70%, it would seem that would also be the rate of success for future shots.

If the question is seeking the actual number of successful free throws, S, in the next x shots, the expression would be:

S = 0.70x

Answer:

4.6%

Step-by-step explanation:

3500+175 = 3675

(175/3675)×100 = 4.6%

Answer:

52% and 7

Step-by-step explanation:

There are 25 squares of which 13 are shaded , then

\(\frac{13}{25}\) × 100% = 13 × 4% = 52°

(b)

1 square represents \(\frac{1}{25}\) × 100% = 1 × 4% = 4%

Then 80% = 80% ÷ 4% = 20

That is for 80% , 20 squares require to be shaded

That is 7 more than the 13 already shaded

Answer:

Below

Step-by-step explanation:

You removed 4 x 3 = 12   negative charges from the group of atoms

  this will leave a   +12 charge on the group of atoms  ( the net change will be   -12 )

Answer: About -4.604.

Step-by-step explanation:

    To solve, we will isolate the x variable.

Given:

    \(5e^{(2x+11)}=30\)

Divide both sides of the equation by 5:

    \(e^{(2x+11)}=6\)

Natural log of both sides:

    \(Ln(e^{(2x+11)})=Ln(6)\)

Power property:

    (2x + 11)(Lne) = Ln(6)

Simplify:

➜ \(Lne = Log_ee = 1\)

    2x + 11 = Ln(6)

Subtract 11 from both sides of the equation:

    2x = Ln(6) - 11

Divide both sides of the equation by 2:

    \(\displaystyle x=\frac{Ln(6) - 11}{2}\)

Compute:

    x = -4.60412 ≈ -4.604

The mean, of the sampling distribution of the mean, for samples of size 48 equals 65.

The central limit theorem states that the sampling distribution of the mean of a large number of random samples taken from a population will be approximately normally distributed, regardless of the shape of the population distribution. The mean of the sampling distribution of the mean is equal to the population mean, which in this case is 65.

The standard deviation of the sampling distribution of the mean is equal to the population standard deviation divided by the square root of the sample size. Therefore, the standard deviation of the sampling distribution of the mean for samples of size 48 is 10.2 / √48 ≈ 1.47.

Since the sampling distribution of the mean is approximately normally distributed with a mean of 65 and a standard deviation of 1.47, the mean of the sampling distribution of the mean for samples of size 48 is 65.

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Answer:

-6

Step-by-step explanation:

Ok so if x=2

you have to do -3*2

and thats -6

hope this helped

good luck

Please read through this carefully. I’d love to help, but I want you to understand why this is the answer and not just copy and paste.

Answer:

1. -6

2. 20

Step-by-step explanation:

1. Simply replace x with 2, since x=2. 2x -3 is the same as -3+-3, which is -6.

2. Simply replace x with 2, since x=2. 2x5 is the same as 5+5, which is 10. 10+10=20, therefore, the answer is 20.

Answer:

When an expression can be viewed as the difference of two perfect squares, i.e. a²-b², then we can factor it as (a+b)(a-b). For example, x²-25 can be factored as (x+5)(x-5). This method is based on the pattern (a+b)(a-b)=a²-b², which can be verified by expanding the parentheses in (a+b)(a-b).

Step-by-step explanation:

lol it’s on wassa name ;) mark me brainliest? Btw

Here you go, your equation should look a lot like this:

x²-16 -----> (x+4)(x-4).

Answer: The lowest possible product would be -6724 given the numbers 82 and -82.

We can find this by setting the first number as x + 164. The other number would have to be simply x since it has to have a 164 difference.

Next we'll multiply the numbers together.

x(x+164)

x^2 + 164x

Now we want to minimize this as much as possible, so we'll find the vertex of this quadratic graph. You can do this by finding the x value as -b/2a, where b is the number attached to x and a is the number attached to x^2

-b/2a = -164/2(1) = -164/2 = -82

So we know one of the values is -82. We can plug that into the equation to find the second.

x + 164

-82 + 164

82

Step-by-step explanation: Hope this helps.

The number of people that can go to the amusement park is 10 people

There are three basic types of equation in mathematics. Namely:

259 = 6.50 + 25.25x

259 - 6.50 = 25.25x

252.50 = 25.25x

x = 252.50 / 25.25

x = 10 tickets

Therefore, the number of people that can go to the amusement park is 10 people

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The measure of angle F in triangle DEF is approximately 46.93 degrees.

To find the measure of angle F in triangle DEF, we can use the Law of Cosines.The Law of Cosines states that in a triangle with sides a, b, and c, and angle C opposite side c, the following equation holds:

\(c^2 = a^2 + b^2 - 2ab * cos(C)\)

In triangle DEF, we know the lengths of sides d, e, and f:

d = 12 ft

e = 10 ft

f = 9 ft

Let's denote the measure of angle F as angle C, and the length of side f as side c.

c = f = 9 ft

a = d = 12 ft

b = e = 10 ft

Using the Law of Cosines, we can solve for angle C (m∠ F):

\(c^2 = a^2 + b^2 - 2ab * cos(C)\)

\((9 ft)^2 = (12 ft)^2 + (10 ft)^2 - 2 * 12 ft * 10 ft * cos(C)\)

81 = 144 + 100 - 240 * cos(C)

-163 = -240 * cos(C)

cos(C) = -163 / -240

cos(C) ≈ 0.6792

To find angle C, we can take the inverse cosine (cos^-1) of 0.6792:

C ≈ cos^-1(0.6792)

C ≈ 46.93 degrees

Therefore, the measure of angle F in triangle DEF is approximately 46.93 degrees.

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\((x-h)^2+(y-k)^2=r^2\) is the equation of the circle.

A circle is a figure in which all the points on its boundary are at equal distances. The equation of a circle on a graph is given as,

\((x-a)^2+(y-b)^2=R^2\)

where (a,b) is the radius of the circle.

Given the equation \((x-h)^2+(y-k)^2=r^2\).

Assume a circle on the graph such that its radius is 'r', and the coordinates of the center are (h,k). So, substitute the values in the general equation of the circle mentioned above. Therefore, the equation will be,

\((x-h)^2+(y-k)^2=r^2\)

Hence, the given equation is the equation of the circle.

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Solution:

The given information would be illustrated with the image below as;

We would apply the tangent ratio. Let x be the distance between the base of cliff and the ship. We have;

Then, we have;

FINAL ANSWER:

With the help of the figure we can say that triangles are congruent by SAS Rule

What is Congruence of Triangle?

Triangle congruence: Two triangles are said to be congruent if all three of their corresponding sides are equal and all three of their corresponding angles are equal in size. These triangles can be moved, rotated, flipped, and turned to look exactly the same.

Solution:

By SAS rule, two triangles are said to be congruent if any two sides and the angle included between the sides of one triangle are comparable to the corresponding two sides and the angle included between the sides of the second triangle.

In given figure, sides AB= PQ, BC=QR and angle between AB and BC equal to angle between PQ and QR i.e. ∠B = ∠Q. Hence, Δ ABC ≅ Δ PQR.

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To determine customer opinion of their musical variety, sony randomly selects 120 concerts during a certain week and surveys all concertgoers. The type of sampling is used is "Cluster."

A survey is a technique of gathering information from a sample of people by asking relevant questions with the goal of understanding populations as a whole.

Some key features regarding the survey are-

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Answer:

(a) 40 units

Step-by-step explanation:

32/16=2

20 times 2=40

Answer:

A

Step-by-step explanation:

Since square pyramids A and B are similar, they need to have similar lengths.

Pyramid B's lengths are 2 times larger than that of pyramid A.

Pyramid A: 16 units, 16 units, 20 units.

                     *2            *2           *2

Pyramid B: 32 units, 32 units, ? units

So, the missing side length has to be 20 *2 = 40 units.

Please mark as brainliest!

The correct option is B) x[] = {36, 78, 12, 24} and y[] = {36, 78, 12, 24}.

The results after the given code was executed is x[] = {36, 78, 12, 24} and y[] = {36, 78, 12, 24}.

An array is a group of elements the same type that are stored in adjacent memory locations and may be accessed individually by using a reference to a unique identifier.

Some key features regarding the array are-

Now, for the given programme,

for(int a = 0; a < x.length; a++)

{

x[a] = y[a];

y[a] = x[a];

}

After execution of the programme, the result obtain will be;

x[] = {36, 78, 12, 24}

y[] = {36, 78, 12, 24}.

Therefore, the output of the given programme is obtained.

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The complete question is-

What would be the results after the following code was executed?

int[] x = {23, 55, 83, 19};

int[] y = {36, 78, 12, 24};

for(int a = 0; a < x.length; a++)

{

x[a] = y[a];

y[a] = x[a];

}

A) x[] = {36, 78, 12, 24} and y[] = {23, 55, 83, 19}

B) x[] = {36, 78, 12, 24} and y[] = {36, 78, 12, 24}

C) x[] = {23, 55, 83, 19} and y[] = {23, 55, 83, 19}

D) This is a compilation error.

The area of the regular pentagon is 252.7m²

The formula that is used for calculating the area of a regular pentagon is expressed with the equation;

A = 5/2 x s x a

where the parameters are;

Apothem is the line from the center of the pentagon to a side, intersecting the side at 90 degrees right angle.

apothem,a = s/2 tan (180/n)

Substitute the values

Apothem, a = 7.6/2 tan 16

a = 7.6/0.57 = 13.3m

Substitute the values, we get;

Area = 5/2 × 7.6 × 13.3

Multiply the values, we have;

Area = 505. 4/2

Divide the values, we get;

Area = 252.7 m²

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