Pls help with this question, I will give brainliest, answer is not 278.63 or 375

A total of 57 student tickets and a total of 41 adult tickets were sold to generate a total revenue of $703.

A mathematical statement known as an equation is composed of two expressions joined together with the equal sign. A formula would've been 3x - 5 = 16, for illustration.. When this equation is solved, we discover that the quantity of the variables x is 7.

The following response has been produced in a straightforward, step-by-step manner.

Step: 1

Price of each student ticket = $ 5.50

Price of each adult ticket = $ 9.50

If x Equals the quantity of student tickets sold

If y Equals the quantity of adult tickets sold,

Step: 2

(i). It is given that a total of 98 tickets were sold.

Therefore, we can write as -

(Number of student tickets sold) + (Number of adult tickets sold) = 98

x+y =98 -----------equation (1)

Step: 3

(ii). The total revenue earned from the sale of tickets was $703.

Therefore, we can write as -

(Revenue earned from selling student tickets) + (Revenue earned from selling adult tickets) = 703

(Price of each student ticket×Number of student tickets sold) + (Price of each adult ticket ×Number of adult tickets sold) = 703

(5.50 × x)+ (9.50 × y) =703

5.50x+9.50y =703 ----------equation 2

Step: 4

System of Equations :

1) x+y =98

2) 5.50x + 9.50y =703

On performing (eq 2) - 5.50(eq 1), we get -

(5.50x +9.50y) - 5.50(x+y)=703-5.50(98)

5.50x + 9.50y - 5.50x-5.50y=703-539

4y=164

y=164/4

y=41

The operation was performed to reduce the equation in a single variable.

Step: 5

On substituting the value of y=41 in eq 1 , we get-

x+41 =98

x= 98-41

x=57

Thus, a total of 57 student tickets and a total of 41 adult tickets were sold to generate a total revenue of $703.

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Answer:

1 tube of paint is $2.25.

Step-by-step explanation:

We can set this as an equation first. Since we know that the canvas is $6.95 and the total is $24.95, those are the values that we will work with to determine the tube price. We can set the tube price as 8x, x being the tube price, and 8 being the number of tubes Ishi plans to buy. Now, we can set an equation:

6.95 + 8x = 24.95

8x = 18

x = 18/8 (simplified is 9/4, or 2.25)

Answer: -13t+8.2

Step-by-step explanation:

When combining like terms, only the same terms can be combined. In this case, it is -5.2t and -7.8t are the same. If we add them together, we got -13, unfortunately, 8.2 is different, so our simplest form is

-13t+8.2.

The height of the tree is approximately 51.4 feet, to the nearest hundredth of a foot.

What is trigonometry?

Trigonometry is a branch of mathematics that deals with the relationships between the angles and sides of triangles, particularly right triangles. Trigonometry is based on the study of the ratios of the sides of a right triangle to its angles, these ratios are called trigonometric functions and are represented by sine, cosine and tangent.

To solve the problem, we can use the tangent function. The tangent of an angle is the ratio of the opposite side to the adjacent side in a right triangle.

Given that the angle of elevation to the tree is 53 degrees, we can use the tangent function to find the height of the tree.

Let h be the height of the tree and x be the distance from the point on the ground to the tree.

tan 53 = h/x

h = x * tan 53

h = 89 * tan 53

= 89*(√3/3) ≈ 89*0.577 ≈ 51.4

Hence, the height of the tree is approximately 51.4 feet, to the nearest hundredth of a foot.

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The sample distribution is approximately normal with a mean of 10 and a standard deviation of 1.

The distribution is slightly skewed to the left, with a slightly higher probability of lower readings than higher readings.

(b) If the sample minimum is lower than 9, this would indicate that the thermostat manufacturer's claim is false. This is because the manufacturer claims that the temperature will not go below 10 degrees, but the sample minimum of 9 suggests that it does. The probability of observing a sample minimum of 9 or lower is 0.25, which indicates that the probability of the temperature dropping below 10 degrees is relatively high.

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The possible values the variable can take on and how often we observe each of the possible values of a variable.

The possible values the variable can take on and how often we observe each of the possible values of a variable.

A distribution of a variable describes the possible values the variable can take on and how often we observe each of the possible values of a variable. It does not describe the experimental units involved in the study or the explanatory and response variables of a study, nor does it describe the observational units involved in the study. The possible values the variable can take on and how often we observe each of the possible values of a variable.

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The Mean Value Theorem states that there exists a point c in the interval (a,b) such that f'(c) equals the function's average rate of change throughout [a,b] if a function f is continuous on the closed interval [a,b] and differentiable on the open interval (a,b).

The Mean Value Theorem states that if a function f is continuous on the closed interval [a, b] and differentiable on the open interval (a, b), then at some point c on the interval (a, b), f'(c) must equal the function's average rate of change over [a, b].

There is at least one point on a planar arc between two endpoints where the tangent to the arc is parallel to the secant between its ends.

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The complete question is: Explain why the Mean Value Theorem does not apply to the function on the interval [0,6].

The total cost E expressed as a function of q, wherein q is the number of widgets manufactured=  E = 9q + 45,000.

Changes in sales or production volume have no effect on costs or expenses that are constant. They cover costs like rent, insurance, membership dues and subscriptions, equipment leases, loan payments, depreciation, management salaries, and advertising.

Variable costs are expenses that alter as the volume of a product or service that a company produces fluctuates. The total of marginal costs over all units produced is what is referred to as variable costs. They may also be regarded as ordinary expenses. The two parts of total cost are fixed costs as well as variable costs.

The fixed expenses = $45,000,

The variable expenses =  $9

E = V + F

E = 9q + 45,000

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the standard deviation of 2nd student data is least so the measurement of 2nd student is more precise.

In this problem we have four sample of four students which measure by same meter stick. Average of all student's data is 12.4 which is same. we have to check whose measurement is precision. according to least standard deviation is least which data is more precision.

the standard deviation=[tex]\sqrt{\frac{\sum(xn-x')^2}{n-1} }[/tex] ,where x' is average of data .

by the above formula.

We have standard deviation for first student is 0.40.

2nd student is 0.23, 3rd student is 0.52 and 4th student is 0.36.

after examining the standard deviation of all data 2nd student measurement is more precision.

The complete question is,

Four students used the same meter stick to measure an edge of the same wooden cube four times. They obtained the following results:

Student I II III IV

11.90 cm 11.95 cm 11.90 cm 11.95 cm

12.25 cm 12.35 cm 12.15 cm 12.30 cm

12.70 cm 12.60 cm 12.45 cm 12.55 cm

12.75 cm 12.70 cm 13.10 cm 12.80 cm

Average 12.40 cm 12.40 cm 12.40 cm 12.40 cm

Which student’s measurements represent the

greatest precision?

A. Student I

B. Student II

C. Student III

D. Student IV

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Answer:

1 hour 50 minutes

Step-by-step explanation:

Total distance from parking lot to entrance = 22 miles

We will assume that the total distance from entrance to lot is also 22 miles

The average speed of the boat = 20mph

The average speed of the train is 10 mph faster = 20 + 10 = 30 mph

Time taken for travel from parking lot to park by train  = 22/30 hours

22/30 hours = 22/30 x 60 minutes = 44 minutes

On the way back, the boat was taken
Distance = 22 miles, speed = 20 mph

Time taken = distance/speed = 22/20 hours

22/20 hours = 22/20 x 60 minutes = 66 minutes

Total round trip time taken = 44 + 66 = 110 minutes

110 minutes = 110/60 hours

= 1 50/60 = 1 hour 50 minutes

Answer:

65

Step-by-step explanation:

Answer:

like 149

Step-by-step explanation:

big brain

Answer:

HJ = 8.4

Step-by-step explanation:

tangents to a circle from an external point are congruent , then

HJ = HI

the angle between a tangent and a radius of the circle at the point of contact is a right angle.

so Δ OHI is right with ∠ OIH = 90°

using Pythagoras' identity in the right triangle

HI² + OI² = OH² , that is

HI² + 8² = 11.6²

HI² + 64 = 134.56 ( subtract 64 from both sides )

HI² = 70.56 ( take square root of both sides )

HI = [tex]\sqrt{70.56}[/tex] = 8.4

Then

HJ = HI = 8.4

The potential difference between the points (0, y) and (x, y) is given by the equation V = 3x^2y - 6yx.

e. 3x^2y-6y

The potential difference between two points (x, y) and (0, y) is given by the equation V = -E⋅x. The electric field in the region is given by the equations E; fzy and Ey (0, Y) and (X,Y). Using these equations, the electric field in the region can be calculated as E = 3x^2y - 6y. Therefore, the potential difference between the points (0, y) and (x, y) is given by V = -(3x^2y - 6y)⋅x = 3x^2y - 6yx.

The potential difference between the points (0, y) and (x, y) is given by the equation V = 3x^2y - 6yx.

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We know that,

f(x) = ∑[tex]\frac{f^{k} (x_{0} ) }{k!} (x-x_{0} )^{k}[/tex]

We know that,

f(x) = ∑[tex]\frac{f^{k} (x_{0} ) }{k!} (x-x_{0} )^{k}[/tex]

holds at a point x if and only if

                        [tex]\lim_{n \to \infty} R_n(x) = 0[/tex]

Let f(x) = sin x. The Taylor series for f(x) is

              f(x) = sin x = ∑ [tex](-1)^{k}[/tex] [tex]\frac{x^{2k+1} }{(2k+1)!}[/tex]

According to the above theorem, we must show that [tex]R_{n}[/tex] ⇒0 or all x as n ⇒ infinity. For all x we have

                             [tex]f^{n+1} (x) =[/tex] ± sin x

     or,                   [tex]f^{n+1} (x)[/tex] = ± cosy

and in all cases we have [tex]| f^{n+1} (x) |\leq 1.[/tex]

We need to conclude that

                           [tex]0\leq |R_{n}(x) | \frac{|x|^{n+1} }{(n+1)!}[/tex]

Furthermore, it follows that

                            [tex]\lim_{n \to \infty} \frac{|x|^{n+1} }{(n+1)!} = 0[/tex]

Using this result, it follows that [tex]|R_{n}|[/tex] ⇒0 and hence that [tex]R_{n}[/tex] ⇒0 is n⇒infinity.

Since this, is true for all x, we have proved that the Taylor series for sin x converges to sin x for all x.

Holds at a point x if

                        [tex]\lim_{n \to \infty} R_n(x) = 0[/tex]

Let f(x) = sin x. The Taylor series for f(x) is

              f(x) = sin x = ∑ [tex](-1)^{k}[/tex] [tex]\frac{x^{2k+1} }{(2k+1)!}[/tex]

According to the above theorem, we must show that [tex]R_{n}[/tex] ⇒0 or all x as n ⇒ infinity. For all x we have

                             [tex]f^{n+1} (x) =[/tex] ± sin x

     or,                   [tex]f^{n+1} (x)[/tex] = ± cosy

and in all cases we have [tex]| f^{n+1} (x) |\leq 1.[/tex]

We need to conclude that

                           [tex]0\leq |R_{n}(x) | \frac{|x|^{n+1} }{(n+1)!}[/tex]

Furthermore, it follows that

                            [tex]\lim_{n \to \infty} \frac{|x|^{n+1} }{(n+1)!} = 0[/tex]

Using this result, it follows that [tex]|R_{n}|[/tex] ⇒0 and hence that [tex]R_{n}[/tex] ⇒0 is n⇒infinity.

Since this, is true for all x, we have proved that the Taylor series for sin x converges to sin x for all x.

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The graph that shows a system of equations with infinite solutions is graph C.

Here we have some systems of equations graphed.

A system of equations has infinite solutions when both equations are equivalent (in this case, both equations represent the same line)

Then we we look at the graph of the system of equations we will see a single graph instead of two, like what we can see on option C.

The graph that shows infinite solutions is graph C (the one in the top right side).

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If Wilt were still only a 56% shooter, the probability that he would make at least 34 of his shots is about 0,03.The correct option is a

To perform this simulation, we can use a computer program to generate a random number between 0 and 1 for each shot.

If the random number is less than or equal to 0.56, then the shot is counted as a make. We can then repeat this process 50 times and count the number of shots that were made.

We can repeat this process many times, and count the proportion of times that 34 or more makes are achieved. This proportion is the estimated probability that a 56% free-throw shooter would make 34 or more in a sample of 50 shots.

Hence a) If Wilt were still only a 56% shooter, the probability that he would make at least 34 of his shots is about 0,03.

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3/10

Explanation

The total number of people that are studying neither Russian nor Spanish will be subtracted from the total number of people

i.e 80-23=57

Now let's calculate those that studies both languages (x)

50+31-x=57

-x=57-50-31

-x=-24

x=24

probability of choosing those that studies both Spanish and Russian is

24/80=3/10

Answer:

33 out of 80 pupils

Step-by-step explanation:

Total = 80 pupils

Studying Russian and Spanish = 80 - 23;

= 57 pupils

Out of 57 pupils, 50 pupils study Russian = 7 diff.

Out of 57 pupils 31 pupils study Spanish = 26 diff.

Answer:

(3,0)

Step-by-step explanation:

x - 2

5 - 2 = 3

3 would be our x value or our input value.

When the input is 3, the output is

3 - 3 = 0

This gives us the ordered pair

(3,0)

On solving the provided question, we can say that from the graph we have a equation [tex]y = x^2 - 3x - 4[/tex] => y= x(x+1) - 4(x+1) => y = (x+1)(x-4)

Mathematicians use here  graphs to logically convey facts or values using visual representations or charts. A graph point will typically reflect a relationship between two or more things. Nodes, or vertices, and edges make form a graph, a non-linear data structure. Glue together the nodes, often referred to as vertices. This graph has vertices V=1, 2, 3, 5, and edges E=1, 2, 1, 3, 2, 4, and (2.5), (3.5). (4.5). Statistical charts (bar charts, pie charts, line charts, etc.) graphical representations of exponential growth. a logarithmic graph in the shape of a triangle

from the graph we have a equation

[tex]y = x^2 - 3x - 4[/tex]

y= x(x+1) - 4(x+1)

y = (x+1)(x-4)

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The function f has the property that as x gets closer and closer to 3, the values of f(x) get closer and closer to 5.

The function f has the property that as x gets closer and closer to 3, the values of f(x) get closer and closer to 5.

A) f(3) = 5

C) lim f(x) = 5

x-->3

The function f has the property that as x gets closer and closer to 3, the values of f(x) get closer and closer to 5. This means that the limit of f(x) as x approaches 3 is 5, so C) lim f(x) = 5 x-->3 must be true. Additionally, since the values of f(x) approach 5 as x approaches 3, it follows that f(3) must also equal 5, so A) f(3) = 5 must be true as well. D) lim f(x) = 3 x-->5 is not true since the limit of f(x) as x approaches 5 is not 3. Similarly, B) f(5) = 3 is not true since f(5) does not necessarily equal 3.

The statements A) f(3) = 5 and C) lim f(x) = 5 x-->3 must be true for the given function.

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[tex]$\left(9 \times 10^{-3}\right)^2$[/tex] can be wrltten in sclentlflc notation as[tex]$8.1 \times 10^{-5}$[/tex]

A number is written in scientific notation if it can be written as [tex]$p \times 10^x$[/tex]where p has value greater than or equal to 1 and less than 10 and x is an integer.

Given[tex]- $\left(9 \times 10^{-3}\right)^2$[/tex]

Flrst applying [tex]$(a b)^2=a^2 b^2$[/tex]

We get, [tex]$\left(9 \times 10^{-3}\right)^2=9^2 \times\left(10^{-3}\right)^2$[/tex]

using property of exponents [tex]$\left(a^n\right)^m=a^{n m}$[/tex]

[tex]$9^2 \times\left(10^{-3}\right)^2=81$[/tex] times [tex]$10^{-6}$[/tex]

Thus, we have to write 81 times[tex]$10^{-6}$[/tex]In scientific notation,

Multiply and divide by 10 , we get

81 times [tex]$10^{-6}=8.1 \times 10^{-5}$[/tex]

Thus, [tex]$\left(9 \times 10^{-3}\right)^2$[/tex]can be written in scientific notation as [tex]$8.1 \times 10^{-5}$[/tex]

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Venn diagram you mentioned illustrates the connection between A, B, and C, three sets. set (A n B), which is the intersection of  two sets, is represented as region where A and B overlap. Scroll down for more detail.

A Venn Diagram is a pictorial representation of the relationships between sets.

The relationship between the three sets A, B, and C is depicted in the Venn diagram you are referring to. The set (A n B), which is the intersection of the two sets, is represented as the region where A and B overlap. The set (A U C) or the union of the sets A and C is represented by the region outside of this intersection but inside the larger circles. In the universal set, this is sometimes referred to as the complement of (A n B).

The following figures show how to shade regions of Venn Diagrams for two sets:

A intersect B, A union B, A’, A intersect B’, A’ intersect B, A union B’,

A’ union B, A’ union B’ = (A intersect B)’, A’ intersect B’ = (A union B)’.

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The positive possibility of the [tex]x[/tex] component in a vector in the XY plane that has a magnitude of 90 units and the [tex]y[/tex] component is -45 units is [tex]+77.94[/tex].

Given,

           The magnitude of the vector, [tex]M[/tex] = 90 units

           The y component of the vector, [tex]y[/tex] = -45 units

We know that,

            The magnitude of the vector can be expressed as:

             [tex]M^{2} = x^{2} +y^{2}[/tex]

             [tex]x^{2} =M^{2} -y^{2}[/tex]

Substitute the values in the above equation, and we get :

            [tex]x^{2} = (90)^{2} - (-45)^{2}[/tex]

            [tex]x^{2} = 8100 - 2025[/tex]

            [tex]x^{2} = 6075[/tex]

            [tex]x=[/tex] ±[tex]77.94[/tex]

Hence, the Positive possibility of [tex]x[/tex] the component is 77.94

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The interior angle of a regular polygon with n sides is (n-2) times 180 degrees divided by n.

The exterior angle of a regular polygon with n sides is 360 degrees divided by n.

A polygonal shape is what?

A polygon is a two-dimensional, closed form that is flat or planar and is limited by straight sides. Its sides are not curled. A polygon's edges are another name for its sides. The vertices (or corners) of a polygon are the places where two sides converge.

Given that 2 * interior angle = 7 * exterior angle, we can set up the following equation:

2 * ( (n-2) * 180 / n ) = 7 * ( 360 / n )

Solving for n, we get:

n = (1440 / (2*(7-180)) ) = 9

So the polygon has 9 sides. To find the interior angle, we substitute n back into the formula:

(n-2) * 180 / n = (9-2) * 180 / 9 = 160

So the interior angle of the polygon is 160 degrees.

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The least squares residuals e are heteroskedastic and correlated, even if the disturbance vector e is homoskedastic and uncorrelated.

The least squares residuals e are heteroskedastic and correlated even if the disturbance vector e is homoskedastic and uncorrelated because the variance of the observed errors, Var(e) = Var(X'e) = X'Var(e)X. As X'e is not a vector of independent random variables, the variance-covariance matrix of the errors is not diagonal and therefore the errors are correlated and heteroskedastic. This can be calculated by the formula Var(X'e) = X'Var(e)X. This formula shows that the variances of the least squares residuals e depend on the parameters of the model, and that the errors are therefore correlated and heteroskedastic.

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sin(a) = bc/ab. is the angle of a is therefore the sine of angle at a is equal to side bc divided by side ab.

this is explained as below as :

The sine of an angle in a right triangle is defined as the ratio of the length of the side opposite to  the angle to the length of the hypotenuse. In this case, the angle at "a" is opposite side "bc" and the hypotenuse is side "ab". Therefore, the sine of angle "a" is equal to the ratio of side "bc" divided by side "ab", or sin(a) = bc/ab.

The sine of an angle in a triangle is a trigonometric function that is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse. The hypotenuse is the side of a right triangle that is opposite the right angle.

In this particular case, the statement "the sine of the angle at a is equal to side bc divided by side ab" is referring to a right triangle where angle "a" is one of the angles, side "bc" is the side opposite angle "a" and side "ab" is the hypotenuse.

This is known as the sine ratio and it is used in trigonometry to calculate the sine of an angle in a right triangle. It is important to note that the sine ratio is only valid for right triangles, and the measure of the angle must be in radians.

It's also worth mentioning that this relationship holds true for any angle in a triangle, not only in right triangles, but in non-right triangles sine, cosine and tangent ratios are defined differently.

So, the sine of angle "a" is calculated as the ratio of side "bc" to side "ab" (bc/ab).

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So the chance of drawing a white ball in the first draw is 1/4 and the chance that all the balls are white is the same.

What is the straightforward meaning of probability?

A probability is a numerical representation of the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.

If one ball is drawn and found to be white, and it is not known of what colors the other balls are, the probability that all the balls are white is 1/4 or 25%. This is because there is only one outcome where all the balls are white (all four balls are white) out of the four total possible outcomes (all four balls are white, three are white and one is not, two are white and two are not, one is white and three are not, and none are white). So the chance of drawing a white ball in the first draw is 1/4 and the chance that all the balls are white is the same.

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The cost function is minimized when the predicted values are as close as possible to the actual values, which is achieved by finding the optimal values of the parameters θ.

What is the least squares cost function?

The least squares cost function for linear regression is used to measure the difference between the predicted values and the actual values of the target variable. It is defined as the sum of the squared differences between the predicted values and the actual values.

The compact form of the cost function is given by:

J(θ) = (1/2m) * Σ(i=1 to m) (hθ(x^i) - y^i)^2

where:

hθ(x^i) is the predicted value of the target variable for the ith sample, given by the hypothesis function hθ(x^i) = θ^T * x^i

y^i is the actual value of the target variable for the ith sample

θ is the vector of parameters for the linear regression model

m is the number of samples in the dataset

Hence, The cost function is minimized when the predicted values are as close as possible to the actual values, which is achieved by finding the optimal values of the parameters θ.

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Answer:

26

Step-by-step explanation:

To find the mean score of all six quizzes, you add all the scores and divide by the number of examinations. So if Percy's first five quiz scores are 24, 27, 22, 21, and 18, the total is 112. To find the mean score of all six quizzes, add Rachael's sixth quiz score to the total and divide by 6.

If the mean score of all six quizzes is 23, then the total score of all six examinations is 138 (23 x 6).

To find the score Rachael needs on her sixth quiz, you subtract Percy's score (112) from the total score of all six examinations (138)

Rachael needs to score 26 on her sixth quiz (138 - 112) for the mean and median of her quiz scores to be 23

Dendrites first receive electrical signals from other neurons, after which an action potential is sent down the axon until it reaches the axon terminal. The vesicles then set the neurotransmitters in motion. Neurotransmitters will then travel to the synapse, where receptors will begin to transmit the signal.

A neurotransmitter is a signaling molecule that a neuron secretes to affect another cell across a synapse. The cell receiving the signal, which could be any major body part or target cell, could be another neuron or a gland or muscle cell. Neurotransmitters are chemical messengers required by your body to function. They are in charge of moving chemical signals (called "messages") from one neuron (nerve cell) to the next target cell. The next target cell might be another nerve cell, a muscle cell, or a gland.

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