Terry sees this offer.
Refurbished phone
35% OFF
Now only £78
How much was the phone before the discounted price?

Answer: 47 feet

Step-by-step explanation:

Originally the scuba driver was 31 feet below the surface of the water.

She then dives down a further 16 feet. The depth below the surface is now:

= 31 + 16

= 47 feet

The Scuba driver is now 47 feet below the surface of the water so if she had to come back to the surface, she would have to rise that 47 feet to get to the surface.

Answer:

47 feet

Step-by-step explanation:

she is already 31 feet below and dives down 16 more so 31+16 equals 47.

100% = $37,560

18% = ?

(18 × 37560) ÷ 100

= 676,080 ÷ 100

= $6760.8 commission

In a perfectly symmetrical distribution with a mean (µ) of 30, there is no specific mode because all values occur with equal frequency.

In a perfectly symmetrical distribution, such as a symmetric bell-shaped curve or a uniform distribution, each value occurs with the same frequency. This means that there is no value that occurs more frequently than others, resulting in multiple modes or no mode at all.

The mode is typically used to identify the most common value in a dataset, but in a perfectly symmetrical distribution, all values have equal frequency, and there is no single mode. Instead, the distribution is characterized by its symmetry around the mean (µ). The mean represents the central tendency of the distribution, indicating the balance point of the data. In this case, with a mean of 30, the distribution is centered around this value, with equal numbers of observations on either side.

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Answer:

30 again if I’m wrong then it’s 40

Step-by-step explanation:

most of the pizzas that are sold are in the 30’s or below

Answer:

(-2,-4) is in quadrant 3

(-2,4) is in quadrant 2

(2,4) is in quadrant 1

(2,-4) is in quadrant 4

Step-by-step explanation:

Quadrant 1 is Positive, Positive

Quadrant 2 is Negative, Positive

Quadrant 3 is Negative, Negative

Quadrant 4 is Positive, Negative

Step-by-step explanation:

(-2,-4) in 3rd Quadrant

(-2,4) in 2nd Quadrant

(2,4) in 1st Quadrant

(2, -4) in 4th Quadrant

-TheUnknownScientist

Answer:

1. The x-axis

2. No line of symmetry

3.  1 horizontal line of symmetry

4. y = -2

5. The figure has vertical line symmetry.

Step-by-step explanation:

A line of symmetry is a line that divides a shape into two parts that match exactly

1.

We can see that if we cut through point A we will be able to divide the shape into two equal parts.

So, the answer is the x-axis.

2.

The Flag has no line symmetry. It only has point symmetry about its center.

3.

1 horizontal line of symmetry

4.

We can see that if we cut through point R we will be able to divide the shape into two equal parts.

So, the answer is y = -2.

5.

The figure has vertical line symmetry.

The correlation coefficient (r) measures the strength and direction of the linear relationship between two variables. The value of r ranges from -1 to +1, where a value of -1 indicates a perfect negative correlation, +1 indicates a perfect positive correlation, and 0 indicates no correlation.

The correlation coefficient's sign will not change when the order of the variables in a correlation study is changed, but the coefficient's numerical value might. This is due to the symmetry of the correlation coefficient with regard to the two variables under comparison.

For instance, if you calculate the correlation coefficient between X and Y and the result is r = 0.7, it indicates that Y tends to rise as X does. The correlation coefficient between the variables Y and X will have the same sign (+ or -) but a different numerical value if the variables are computed in a different order.

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The statement that 0.007 is 10 times the value of 0.07 is incorrect. Instead, 0.007 is 1/10th or one-tenth the value of 0.07.

To understand this, let's examine the decimal places in each number. In 0.007, the number is in the thousandths place, which means it represents 7/1000. On the other hand, in 0.07, the number is in the hundredths place, representing 7/100.

To compare the two numbers, we can write them as fractions:

0.007 = 7/1000

0.07 = 7/100

Now, let's calculate the value of 0.007 compared to 0.07:

0.007 = (7/1000) / (7/100)

= (7/1000) * (100/7)

= 1/100

So, 0.007 is equal to 1/100 or 0.01, which is 1/10th or one-tenth the value of 0.07.

No, 0.007 is not 10 times the value of 0.07. In fact, 0.007 is 1/10th or one-tenth the value of 0.07.

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Answer:

(2x-5)feet

Step-by-step explanation:

The area of the rectangular garden A = Length × Width

Given the area A(x) = 2x² - 21x + 40

And the width =x-8 feet

To get the length, we will simply factorise the area function as shown;

You will just factorise the area

Factorizing 2x² - 21x+40

2x² − 21x + 40

2x² -16x - 5x + 40

2x(x - 8) -5(x - 8)

=(2x−5)(x−8)

Hence the length of the garden is

(2x-5)feet

we can solve the equation using the inverse of A:\(\[x = A^{-1}v = \begin{bmatrix} -1 & 2 & -5 \\ 5 & -9 & 20 \\ -1 & 2 & -4 \end{bmatrix} \begin{bmatrix} 1 \\ 1 \\ 1 \end{bmatrix} = \begin{bmatrix} -4 \\ 16 \\ -3 \end{bmatrix}\]Therefore, the four vectors:\[u_1 = \begin{bmatrix} 1 \\ -1 \\ 2 \end{bmatrix} , \; u_2 = \begin{bmatrix} 2 \\ 1 \\ 0 \end{bmatrix} , \; u_3 = \begin{bmatrix} -1 \\ 3 \\ -1 \end{bmatrix} , \; v = \begin{bmatrix} -4 \\ 16 \\ -3 \end{bmatrix}\]\)form a basis of .

To do that, we will solve the equation:\[Ax = v\]where x is a column vector of three unknowns. We want v to be linearly independent from the columns of A, so we need the equation to have a unique solution. We can achieve that by taking v to be any vector that is not in the column space of A. For example, we can take:\\([v = \begin{bmatrix} 1 \\ 1 \\ 1 \end{bmatrix}\]\)Then, we can solve the equation using the inverse of A:\(\[x = A^{-1}v = \begin{bmatrix} -1 & 2 & -5 \\ 5 & -9 & 20 \\ -1 & 2 & -4 \end{bmatrix} \begin{bmatrix} 1 \\ 1 \\ 1 \end{bmatrix} = \begin{bmatrix} -4 \\ 16 \\ -3 \end{bmatrix}\]Therefore, the four vectors:\[u_1 = \begin{bmatrix} 1 \\ -1 \\ 2 \end{bmatrix} , \; u_2 = \begin{bmatrix} 2 \\ 1 \\ 0 \end{bmatrix} , \; u_3 = \begin{bmatrix} -1 \\ 3 \\ -1 \end{bmatrix} , \; v = \begin{bmatrix} -4 \\ 16 \\ -3 \end{bmatrix}\]\)form basis of .

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Answer:

f(5) = 22; f(9) = 34

Step-by-step explanation:

f(5) = 3(5) +7

f(5) = 22

f(9) = 3(9) +7

f(9) = 34

Answer:

Step-by-step explanation:

Find the volume of the cube

Find the value of the expression

Answer:

15)  2744 in³

16)  584

Step-by-step explanation:

Volume of a cube

\(\sf V=s^3\)

(where s is the side length)

Given:

Substitute the given value into the formula and solve for V:

\(\implies \sf V=14^3\)

\(\implies \sf V=14 \cdot 14 \cdot 14\)

\(\implies \sf V=196 \cdot 14\)

\(\implies \sf V=2744\:\:in^3\)

Given expression:

To solve:

\(=\sf 8 + (8 \cdot 8) + (8 \cdot 8 \cdot 8)\)

\(\sf = 8 + 64 + 512\)

\(\sf = 72+512\)

\(= \sf 584\)

Therefore, 584 people were sent your email.

In question 27, the price elasticity of supply for shampoo is given as 20, and the price of shampoo increases by 0.7%. The expected change in the quantity of shampoo supplied can be determined using the concept of price elasticity of supply. However, the specific percentage change in quantity supplied is not provided, so a precise answer cannot be given based on the given information.

In question 20, an inferior good in which the income effect dominates the substitution effect is referred to as a Giffen good. It is not classified as a normal good, luxury good, mass-produced good, or favored good.

In question 30, the cross elasticity of demand measures the responsiveness of the quantity demanded of a particular good to changes in the prices of its substitutes and complements. The correct answer is that the cross elasticity of demand measures the responsiveness to changes in both substitutes and complements.

In question 27, without the specific percentage change in quantity supplied, we cannot determine the exact outcome based on the given information. The price elasticity of supply of 20 suggests that the quantity supplied is highly responsive to changes in price, but the specific percentage change in quantity supplied cannot be calculated without additional data.

In question 28, the relationship between pasta being a Giffen good and other characteristics is not specified. While pasta being a Giffen good indicates that the quantity demanded increases as the price increases, it does not imply whether pasta is a normal good, luxury good, or how price changes affect quantity demanded.

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Answer:

4.85100 lb

Step-by-step explanation:

1 kg = 2.205 lb

2.2 kg

= 2.2 x 2.205

= 4.85100 lb

Answer:

Frainkie is correct it takes $12.50

Step-by-step explanation:

37.50 divided by 3 to find out one wreath's cost which is 12.50

hope this helps

plz mark me brainliest.

Answer:

Try using slope formula

Step-by-step explanation:

You can use the formula of m= ((y2)-(y1)/((x2)-(x1))

I hope this helps

Well, it's really simple actually. You don't need to focus on all those extra words on the top, focus on days and swings

In 20 days, Carmen swings 10 times.

In 10 days, Carmen swings 5 times.

If you notice, Y is multipled 0.5 of the original, so half

This means, 1 day (X) is swung 0.5 (Y)

I think Carmen is a possesed little girl for pulling that off

If you have any questions, feedback, or problems, let me know

For the first question:

\(\(\frac{\partial z}{\partial x} = 3x^2y^2e^{x^3 y^2}\) and \(\frac{\partial z}{\partial y} = 3x^3 y e^{x^3 y^2}\).\)

For the second question:

\(\(\frac{\partial z}{\partial x} = \frac{-2y^3}{(4x^2 + 2y^2)^2}\) and \(\frac{\partial z}{\partial y} = \frac{-4x^3}{(4x^2 + 2y^2)^2}\).\)

For the first question:

Given \(\(z = 3e^{x^3 y^2}\),\) we need to find \(\(\frac{\partial z}{\partial x}\) and \(\frac{\partial z}{\partial y}\).\)

Using the chain rule, we have:

\(\(\frac{\partial z}{\partial x} = \frac{\partial}{\partial x}(3e^{x^3 y^2}) = 3y^2 e^{x^3 y^2} \cdot \frac{\partial}{\partial x}(x^3) = 3x^2y^2e^{x^3 y^2}\)\)

Similarly,

\(\(\frac{\partial z}{\partial y} = \frac{\partial}{\partial y}(3e^{x^3 y^2}) = 3x^3 y e^{x^3 y^2}\)\)

Therefore, \(\(\frac{\partial z}{\partial x} = 3x^2y^2e^{x^3 y^2}\) and \(\frac{\partial z}{\partial y} = 3x^3 y e^{x^3 y^2}\).\)

For the second question:

Given \(\(z = -\frac{xy}{4x^2 + 2y^2}\), we need to find \(\frac{\partial z}{\partial x}\) and \(\frac{\partial z}{\partial y}\).\)

To find the partial derivative with respect to \(x\), we differentiate \(\(z\)\)with respect to \(\(x\)\) while treating \(\(y\)\) as a constant:

\(\(\frac{\partial z}{\partial x} = -\frac{\partial}{\partial x}\left(\frac{xy}{4x^2 + 2y^2}\right) = -\frac{y(4x^2 + 2y^2) - x(8x)}{(4x^2 + 2y^2)^2} = \frac{-2y^3}{(4x^2 + 2y^2)^2}\)\)

To find the partial derivative with respect to \(\(y\)\), we differentiate \(\(z\)\) with respect to\(\(y\)\) while treating\(\(x\)\) as a constant:

\(\(\frac{\partial z}{\partial y} = -\frac{\partial}{\partial y}\left(\frac{xy}{4x^2 + 2y^2}\right) = -\frac{x(4x^2 + 2y^2) - y(4y)}{(4x^2 + 2y^2)^2} = \frac{-4x^3}{(4x^2 + 2y^2)^2}\)\)

\(Therefore, \(\frac{\partial z}{\partial x} = \frac{-2y^3}{(4x^2 + 2y^2)^2}\) and \(\frac{\partial z}{\partial y} = \frac{-4x^3}{(4x^2 + 2y^2)^2}\).\)

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The usual speed of the bus is 60 km/hr.

Speed is the rate of change in location of an item, expressed in meters per second.

Given,

Let x be the usual speed.

Speed = Distance/ Time

Time = Distance/Speed

Bus usually travels 350 miles.

It takes time for it to get there = 350/x h

The bus departs this week at 6:10, though.

The 70-minute bus delay = 70/60 = 7/6 h

The bus's current speed is (x+10) miles per hour.

The new window of time for getting there is \(\frac{350}{x+10}\)

\(\frac{350}{x}\) + \(\frac{350}{x+10}\) = \(\frac{7}{6}\)

350(\(\frac{x+10-x}{x(x+10)}\) ) = \(\frac{7}{6}\)

350 ( \(\frac{10}{x^{2} +10x}\) )= \(\frac{7}{6}\)

7(x² +10x) = 6(350)(10)

x² + 10x = 3000

x² + 10x - 3000 = 0

x² -60x + 50x - 3000 = 0

x( x - 60) + 50(x - 60) = 0

(x + 50)(x - 60) = 0

x = -50 , x = 60

The usual speed of the bus is 60 km/hr.

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The volume of Cylinder is 8624 \(cm^{2}\) and the radius and height of cylinder is 14 cm as per the given question.

Curved surface area of cylinder =2 x(area of the base) [as stated in the question]----Eq 1

Sum of radius and height = 28cm [r +h=28cm]-----Eq A

Curved surface area of cylinder = \(2\pi rh\)----Eq2

Area of base = \(\pi r^{2}\)---Eq3

Putting Eq 2 and 3 in Eq 1

\(2\pi rh\)=\(2\pi r^{2}\)

\(h=r\)

Thus from this we get that the height and radius of cylinder is equal.

Now Using Equation A

r + h =28cm

2r =28 cm

r=14 cm = h

so the height and radius of cylinder is 14 cm.

Volume of Cylinder = \(\pi r^{2} h\)

=22/7 x 14x14x14

=22 x 2 x14x 14

=8624 \(cm^{2}\)

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Answer: 81.2

Step-by-step explanation:

The relationship between variables VY and ZW cannot be determined based on the given information.

In order to determine the relationship between VY and ZW, we need to have direct information about their relationship or some indirect information that can be used to establish a connection between them. However, the provided information only includes the values of WX, YX, and ZX. These values alone do not provide any direct or indirect evidence of the relationship between VY and ZW.

To establish a relationship between VY and ZW, we would need either the values of VY and ZW themselves or additional information that can be used to infer their relationship. Without any further data or context, it is not possible to determine whether VY and ZW are related or not. Therefore, based on the given information, we cannot make any conclusions about the relationship between VY and ZW.

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100%

$55 = $55. Or in other terms:

100% = 100%

$55 is the maximum number of the problem, which would be 100%. So, they are asking what the maximum is. Which is 100%.

100%

I hope my answer helped you! If you need more information or help, comment down below and I will be sure to respond if I am online. Have a wonderful rest of your day!

Answer: %100

Step-by-step explanation:

55 is the number you are using and the highest number is 55 so it will be %100

Using the Mean Value Theorem to find values for the inequality below, we get : Answer: 12 ≤ f(2) - f(-2) ≤ 20

By the Mean Value Theorem, if a function f(x) is continuous on the closed interval [a, b] and differentiable on the open interval (a, b), then there exists at least one value c in the interval (a, b) such that:

\(\[f'(c) = \frac{f(b) - f(a)}{b - a}\]\)

In this case, we are given that 3 ≤ f'(x) ≤ 5 for all values of x.

Let's apply the Mean Value Theorem to the interval [-2, 2]. Since f(x) is continuous on [-2, 2] and differentiable on (-2, 2), there exists a value c in (-2, 2) such that:

\(\[f'(c) = \frac{f(2) - f(-2)}{2 - (-2)} = \frac{f(2) - f(-2)}{4}\]\)

Given that 3 ≤ f'(x) ≤ 5 for all values of x, we can rewrite this inequality using the value of c:

3 ≤ f'(c) ≤ 5

Multiplying both sides of the inequality by 4, we get:

12 ≤ 4f'(c) ≤ 20

Since f'(c) = (f(2) - f(-2))/4, we can substitute this expression back into the inequality:

\(\[12 \leq 4 \cdot \frac{f(2) - f(-2)}{4} \leq 20\]\)

Simplifying, we have:

12 ≤ f(2) - f(-2) ≤ 20

Therefore, the values for the inequality are:

12 ≤ f(2) - f(-2) ≤ 20

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Complete question :

Suppose that 3≤f′(x)≤5 for all values of x. Use the Mean Value Theorem to find values for the inequality below.

Answer:_______ ≤f(2)−f(−2)≤ ________

Answer: The answer is: 693 ft^3 or 693ft cubed

A domain has [-1, 1]

Now, According to the question:

Let's know:

How do you find the domain?

Let y = f(x) be a function with an independent variable x and a dependent variable y. If a function f provides a way to successfully produce a single value y using for that purpose a value for x then that chosen x-value is said to belong to the domain of f.

A square root with a negative number under the root cannot produce a real number. This means that \(1-x^2\) must be greater than or equal to zero.

Squaring a real number will always produce a positive number, so \(x^{2}\)must be equal to or smaller than 1. This means x is between 0 and 1, giving the domain of [0,1].

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The complete question is this ;

What is the domain of \(\sqrt{1-x^2}\)

An equation represents the slope-intercept form of the given line is y= 1/2 x+8. Therefore, option D is the correct answer.

Given that, y-intercept = (0, 8) and slope = 1/2.

The general equation of a straight line is y=mx+c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.

Substitute m=1/2 and c=8 in y=mx+c, we get

y= 1/2 x+8

Therefore, option D is the correct answer.

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1. Given that AD is perpendicular to BC, this tells us angle ADC and ADB are both right angles and are therefore congruent.

2. We know AD = AD, since it's the same line segment.

3. Since AD bisects angle BAC, we know angle CAD and BAD are congruent.

Based on Angle-Side-Angle, triangles ADC and ADB are congruent.

Answer:

Step-by-step explanation:

39n = -49-1

39n = -50

n = - 1.28

Hey there!

39n + 1 = -49

39n = -49 - 1

39n = -50

n = -50 ÷ 39

n = -1.28

Hope it helps ya!

Answer:

Y = 28.31

Z = 13.29

Angle A = 28

Step-by-step explanation:

For Angle A:

Remember a triangle has a total of 180 degree angles. So set up your formula as

180 - 62 -90 = Angle A

For Y:

The sine of an angle is equal to the ratio of the opposite side to the hypotenuse.  

sin (B) = opp/hyp or b/c or (y)

sinB = 62

b = 25

Rewrite as c=b/2SinB -> c=25/sin62 -> Y = 28.31

For Z:

Use the Pythagorean theorem to find the unknown side.

\(z^{2} = 28.31^{2} - 25^{2}\)

z = 13.29