PLEASE HELP . Nicole has to spend $2,675 on monthly supplies for her hair salon. She charges
$25 from each customer for a haircut. How many haircuts would she need to do to
pay for the cost of her monthly supplies?

All of them would accurately represent how many flowers of each type she used

The solution of the system of equations is (-4,-4), We can also solve the system of equations by using elimination. Multiplying the first equation by 2 and the second equation by 1

To solve the system of equations, we can add the two equations together. This gives us x = -4. We can then substitute this value into either equation to solve for y. Substituting into the first equation gives us -8 - 4y = -12. Solving for y gives us y = 1.

We can also solve the system of equations by using elimination. Multiplying the first equation by 2 and the second equation by 1, we get:

Adding these two equations together gives us 3x = -16. Solving for x gives us x = -4. We can then substitute this value into either equation to solve for y. Substituting into the first equation gives us -8 - 4y = -12. Solving for y gives us y = 1. Therefore, the solution of the system of equations is (-4,-4).

Here is a table of the steps involved in solving the system of equations:

Equation            Step         Result

2 x-4 y=-12     Multiply by 2  4 x-8 y=-24

-x+4 y=8             Multiply by 1  -x+4 y=8

4 x-8 y=-24       Add                   3x = -16

-x+4 y=8          Subtract                   4x = -32

x = -4            Divide by 3            x = -4

-4 y=-12          Substitute x = -4      y = 1

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Answer:

y = 3

Step-by-step explanation:

3(2y-3) = -4y+21

6y-9 = -4y+21

10y-9 = 21

10y = 30

10y/10 = 30/10

y = 3

Answer:

the best answer is option d

Step-by-step explanation:

4/5 x -10 = -40/5 = -8

t x t = t^2

-8t^2

Answer:

\( \sf \: d) \: - 8 {t}^{2} \)

Step-by-step explanation:

Given expression,

\( \sf \rightarrow \: \frac{4}{5}t \: ( - 10t )\)

Let's simplify the expression,

\( \sf \rightarrow \: \frac{4}{5} t \: ( - 10t) \: \)

\( \sf \rightarrow \: ( \frac{4}{5} \times - 10)( {t} \times t)\)

\( \sf \rightarrow \: ( \frac{ - 40}{ \: 5} )( {t}^{2} )\)

\( \sf \rightarrow \: - 8{t}^{2} \)

Hence, the option (d) is correct.

Answer:

Frequency of wave = 3 Hertz

Step-by-step explanation:

Given that:

Wavelength of wave = 20 meters

Velocity of wave = 60m/s

We know that:

v = fλ

Here,

v = velocity , f = frequency and λ = wavelength

Putting values in formula

60 = f(20)

20f = 60

Dividing both sides by 20

\(\frac{20f}{20}=\frac{60}{20}\)

f = 3 Hertz

Hence,

Frequency of wave = 3 Hertz

Answer:

The numbers are 36 and 68.

Step-by-step explanation:

Let the smaller number be x.

"The larger number is four less than two times the smaller

number."

The larger number is

2x - 4

The sum of the numbers is x + 2x - 4, or 3x - 4.

"The sum of the numbers is 104."

3x - 4 = 104

3x = 108

x = 36

The smaller number is 36.

The larger number is 2x - 4, or

2x - 4 = 2(36) - 4 = 72 - 4 = 68

The larger number is 68.

Answer: The numbers are 36 and 68.

Answer:

2.20

Step-by-step explanation:

First, change 42° to radian

42/180 * π = 0.733 rad

The length of the arc = 3 * 0.733 = 2.20

The required measure of the arc RT is given as 2.512 units.

Given that,
In circle S with m RST = 42 and

RS = 3 units,

The circle is the locus of a point whose distance from a fixed point is constant i.e center (h, k). The equation of the circle is given by

(x - h)² + (y - k)² = r²

Where h, k is the coordinate of the center of the circle on the coordinate plane and r is the radius of the circle.

Here,
Arc = radius  × angle
Arc = 3 × 42 × π/180

The length of the arc = 2.512

Thus, the required measure of the arc ET is given as 2.512 units.

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In the beginning of the novel, most people suspect that the one who murder is George. The Option B.

There were great number of people that suspect that George is responsible for the death. This suspicion arises due to reasons surrounding George which create an air of suspicion and uncertainty.

Perhaps, he has been acting strangely or has been in close proximity to the crime scene which led people to draw connections and point fingers in his direction.

Full question:

In the beginning of the novel, most people suspect that the murderer is ______. a. Ernesto. b. George. c. Sh/orty. d. Cecil.

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The higher bacterial count means dirtier hands after washing.

Given data: A student decides to investigate how effective washing with soap is in eliminating bacteria. To do this, she tested four different methods: washing with water only, washing with regular soap, washing with antibacterial soap, and spraying hands with an antibacterial spray (containing 65% ethanol as an active ingredient). She suspected that the number of bacteria on her hands before washing might vary considerably from day to day. To help even out the effects of those changes, she generated random numbers to determine the order of the four treatments.

Each morning she washed her hands according to the treatment randomly chosen. Then she placed her right hand on a sterile media plate designed to encourage bacterial growth. She incubated each play for 2 days at 360C, after which she counted the number of bacteria colonies. She replicated this procedure 8 times for each of the four treatments. Remember that higher bacteria count means dirtier hands after washing.

Therefore, from the given data, a student conducted an experiment to investigate how effective washing with soap is in eliminating bacteria. For this, she used four different methods: washing with water only, washing with regular soap, washing with antibacterial soap, and spraying hands with an antibacterial spray (containing 65% ethanol as an active ingredient). The higher bacterial count means dirtier hands after washing.

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To determine the points of intersection we first equate the expressions, then we solve for x. Once we have the values of x for which the functions are equal we plu them on one of the function to find its corresponding value of y.

a)

Let's equate the functions and solve for x:

Now we find the corresponding values of y for each value of x; to do this we use the second equation.

When x=3:

Hence the functions intersect at (3,11)

When x=2:

Hence the functions intersect at (2,6)

Therefore the function intersect at the points (3,11) and (2,6).

b)

Let's equate the functions and solve for x:

Now we find the corresponding values of y for each value of x; to do this we use the second equation.

When x=7:

Hence the functions intersect at (7,-26)

When x=-1:

Hence the functions intersect at (-1,-2)

Therefore the function intersect at the points (7,-26) and (-1,-2).

Answer:

$7.50

Step-by-step explanation:

30 x 0.25= 7.50

Answer:

you will need to save 80 each month to get the tires

Answer:

Find the vector that translate A (-2, 7) to A’ (6, 4) is <8,-3>

Step-by-step explanation:

A (x,y) -> A' (x+p , y+q)

x = -2

-2 + p = 6        p = 8

7 + q = 4          q = -3

Answer:

Step-by-step explanation:

so  49.8004 is what it is 0.001 left. 1  x or divide it stay the same

exp: 1\(1\sqrt{2}\)

Explanation:

Whenever you divide by a fraction, you multiply by the reciprocal of that fraction, so 49.8004 / 0.001 would be 49.8004 / 1/1000, which would be 49.8004 * 1000/1, which is 49,800.4.

If you think about it, the problem translated into words is "How many 0.001's fit into 49.8004", which is a big number, because a lot of 0.001's can fit inside 49.8004.

Answer:

hope this helps

Step-by-step explanation:

9+6(10-7x)

=9+60-42x

=69-42x

The measure of the angles and arc are:

1). arc CF = 98°

2). angle T = 60°

3). arc RS = 78°

4). arc AB = 116°

5). angle M = 68°

8). x = 11

9). x = 2

10). x = 11

The angle subtended by an arc of a circle at it's center is twice the angle it substends anywhere on the circles circumference.

1). arc FG = 2(63) = 126

arc EF = 360 - (126 + 136)

arc EF = 98°

2). angle R = 90/2

angle R = 45°

angle T = 180 - (45 + 75) {sum of interior angles of a triangle}

angle T = 60°

3). angle Q = 180 - (61 + 80) {sum of interior angles of a triangle}

angle Q = 39°

arc RS = 2(39)

arc RS = 78°

4). arc ABC = 2(73) = 146°

arc AB = 146 - 60 = 86°

arc VAB = 2(101) = 202°

arc AV = 202 - 86

arc AV = 116°

5). arc KL = 360 - (88 + 136)

arc KL = 136

angle M = 136/2

angle M = 68°

8). angle B = 84/2 = 42

5x - 7 + 42 = 90° {right triangle formed by diameter}

x = 55/5 = 11

9). 2(50x) = 38x + 61x + 2

100x = 99x + 2 {collect like terms}

x = 2

10). 10x - 11 = 8x + 11 {angles in same segment}

10x - 8x = 11 + 11

2x = 22

x = 11

Therefore, the measure of the angles and arc are:

1). arc CF = 98°

2). angle T = 60°

3). arc RS = 78°

4). arc AB = 116°

5). angle M = 68°

8). x = 11

9). x = 2

10). x = 11

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After calculating the partial derivatives and the cross product, we can find the double integral of the magnitude over the region (0 ≤ r ≤ √3, 0 ≤ θ ≤ 2π). This double integral gives the surface area of the part of the plane inside the cylinder.

To find the area of the surface of the part of the plane x + 2y + 3z = 1 that lies inside the cylinder x^2 + y^2 = 3, we can use a parametric representation for the plane and cylinder intersection.

Let x = r * cos(θ) and y = r * sin(θ), where r^2 = 3 (from the cylinder equation). Now, we can find z in terms of r and θ using the plane equation:

z = (1 - x - 2y) / 3
z = (1 - r * cos(θ) - 2r * sin(θ)) / 3

Now, we have the parametric representation of the intersection: (r * cos(θ), r * sin(θ), (1 - r * cos(θ) - 2r * sin(θ)) / 3). To find the surface area, we need to calculate the partial derivatives with respect to r and θ and then find the magnitude of the cross product.

After calculating the partial derivatives and the cross product, we can find the double integral of the magnitude over the region (0 ≤ r ≤ √3, 0 ≤ θ ≤ 2π). This double integral gives the surface area of the part of the plane inside the cylinder.

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A line segment has two endpoints and you can measure them, as shown in the picture with endpoints A and B.

Whereas, A ray is a part of a line that has one endpoint and goes on infinitely in only one direction. You cannot measure the length of a ray. (second picture with the arrow)

The oval on the left side is the domain of the function, whereas the oval on the right is the codomain of the function. One can infer it from the arrows; look how they go from the oval on the left to the one on the right.

We say that a is in the range of the function if it exists b in the domain such that f(b)=a

Therefore, 5 is in both the domain and range of the function since f(2)=5. The answer is true.

Answer:

30

1.301

Step-by-step explanation

f(x) and g(x) are inverse functions.  Note that the logrithmic notation for \(f(x) = y = b^{x} \\ is\\ log y_{b} = x\)

So, when x = 1.477,  f(x) = y = 30

and when x = 20, g(x) = y = 1.301

The probability they choose all democrats is 0.01805

From the question, we have the following parameters that can be used in our computation:

Republicans = 11

Democrats = 8

Number of selections = 4

If the selected people are all democrats, then we have

P = P(Democrats) * P(Democrats | Democrats) in 4 places

using the above as a guide, we have the following:

P = 8/19 * 7/18 * 6/17 * 5/16

Evaluate

P = 0.01805

Hence, the probability they choose all democrats is 0.01805

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Answer:

Stefan originally spent $ 110 on the bike and helmet, with which he is making a profit of $ 33.

Step-by-step explanation:

Since Stefan sells Jin a bicycle for $ 125 and a helmet for $ 18, and the total cost for Jin is 130% of what Stefan spent originally to buy the bike and helmet, to determine how much did Stefan spend originally and how much money did he make by selling the bicycle and helmet to Jin, the following calculations must be performed:

130 = 125 + 18

100 = X

100 x (125 + 18) / 130 = X

100 x 143/130 = X

14,300 / 130 = X

110 = X

143 - 110 = 33

Therefore, Stefan originally spent $ 110 on the bike and helmet, with which he is making a profit of $ 33.

Answer:

The answer to your problem is -10

The x-coordinate that makes this relation not a function.

A relation is not a function if one of the inputs (x-coordinates) is mapped into two or more different outputs.

Here we have the relation:

(4, 8), (-3, 6), (-3, 7), (1, 6)

If you look at the inputs, you can see that:

x = -3

Is mapped into two different outputs, so that is the x-coordinate that makes this not a function.

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Step-by-step explanation:

Since the initial fee is fixed, we can assume it is a constant and the succeeding mile fee is the variable as it changes for every mile covered.

Let x = distance (mile)

let y = total charge (dollars)

Yellowcab company equation for cost calculation;  3.50 + 2.5x = y

laxicab company equation for cost calculation;  4.54+2.3x = z

the two companies charge the same amount when y = z

; 3.50 + 2.5x = 4.54+2.3x

x = 5.2 miles

COST CALCULATION

;3.50 + 2.5x = ?

if x = 5.2;

; 3.50 + 2.5(5.2) =$16.50

OR

; 4.54+2.3x = ?

; 4.54 + 2.3(5.2) = $16.50

Answer:

c= 1

Step-by-step explanation:

To get rid of (c) on the right side, simply divide 2^n both side. But first collect like terms on the left side so you will get 2^n + 1 which you will then simplify the like term(2^n) and you will left with c= 1.

Two point charges, q1 = 3.99 nC located at x = 0.205 m and q2 = 5.01 nC at x = -0.302 m, are placed on the x-axis. The electric field and direction at a given point can be calculated using the principle of superposition.

The electric field at a point due to a point charge is given by Coulomb's law, E = kq/r^2, where E is the electric field, k is Coulomb's constant (8.99 x 10^9 Nm^2/C^2), q is the charge, and r is the distance between the point charge and the point where the electric field is being measured. To calculate the net electric field at a point due to multiple charges, we use the principle of superposition, which states that the total electric field at a point is the vector sum of the electric fields due to each individual charge.

In this case, we have two charges, q1 = 3.99 nC and q2 = 5.01 nC. The electric field at a point P on the x-axis, due to q1, can be calculated as E1 = kq1/r1^2, where r1 is the distance between q1 and point P. Similarly, the electric field at point P due to q2 can be calculated as E2 = kq2/r2^2, where r2 is the distance between q2 and point P. To find the net electric field at point P, we add the electric fields vectorially, E_net = E1 + E2.

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