PLZ HELP FAST I NEED IT RN

65 seats in 20th row.

Direct proportion or direct variation is the relation between two quantities where the ratio of the two is equal to a constant value. It is represented by the proportional symbol, ∝. In fact, the same symbol is used to represent inversely proportional, the matter of the fact that the other quantity is inverted here.

Given,

No. of seats in 3rd row = 31

No. of seats in 6th row = 37

Seats increase at a constant rate

Let k is the rate of increment.

Difference between no. of seats = k × difference between no. of rows

Difference of seats in 3rd and 6th rows = k difference between the no. of rows

37 - 31 = k ×(6-3)

6 = 3k

k = 2

Thus, we can determine

Difference between the no. of seats is twice the difference between the no. of rows.

Difference between 6th and 20th row = 14 rows

Hence the difference between number of seats = 2 × 14 = 28 seats.

No. of seats in 20th row = No. of seats in 6th row + 28 seats

No. of seats in 20th row = 37 + 28 = 65

Hence, there will be 65 seats in 20th row.

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The reference angle corresponding to 7π/6 is π/6. The exact values of sin(7π/6) and cot(7π/6) can be determined using the reference angle and the unit circle.

For sin(7π/6), we know that sin is negative in the third quadrant. The reference angle π/6 is associated with the point (-√3/2, -1/2) on the unit circle. Since 7π/6 is in the third quadrant, the y-coordinate of the corresponding point will be -sin(π/6), which is -1/2. Therefore, sin(7π/6) = -1/2.

For cot(7π/6), we can use the reciprocal relationship between cotangent and tangent. Since the reference angle π/6 is associated with the point (-√3/2, -1/2), the tangent of π/6 is -(1/2) / (√3/2) = -1/√3. Taking the reciprocal, we find that cot(7π/6) = -√3.

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Answer:

wait.

Step-by-step explanation:

what do u really mean by zombies

Answer:

Hi, there for the graph it will be not a function

For the equation it is also not a function

Step-by-step explanation:

For the graph use   vertical line test to see if the x value are the same if they are that's means it is not a function.

The X value can't be the same and can't be used twice.

The reason why because given an equation, there should be only one corresponding y value for any x value.

The expression that represents the correct translation of the phrase is 8x = x + 2

An equation is an expression that shows the relationship between two or more numbers and variables.

Independent variables represent function inputs that do not depend on other values, while dependent variables represent function outputs that depends on other values.

Let x represent the unknown number, the product of 8 and a number is equal to the number increased by 2, hence:

8 * x = x + 2

8x = x + 2

The expression that represents the correct translation of the phrase is 8x = x + 2

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Answer:

the term is minus 1/4 so it would be 3, 2 3/4, 2 2/4.

Answer:

1. x ≤ 15

2. x +3 < 12

3. x/-2 ≥ 10

4. x - 4 ≥ -6

5. x/13 ≥ 1

6. x - 8 ≤ 5

7. 3 * x > -7

8. x/2 + 5 > 11

9. -6 + x ≤ 15

Hope this helps!

Since the chi-square test statistic is larger than the critical value, we may conclude that there is not enough evidence to conclude that cigarette tar level is associated with lung cancer. The correct option is b.

In a chi-square test, the null hypothesis states that there is no association between the variables being tested (in this case, cigarette tar level and lung cancer), while the alternative hypothesis suggests there is an association.

The chi-square test statistic measures the deviation between the observed and expected frequencies under the null hypothesis.

In this case, the chi-square test statistic is found to be 14.44, which is larger than the 5%-level critical value of 12.59. However, it is important to note that the critical value is used to determine the rejection region for the null hypothesis, not to directly compare with the test statistic.

The p-value, which is calculated based on the test statistic, is given as 0.025.

The correct interpretation of the results is based on the p-value. Since the p-value (0.025) is less than the significance level (0.05), there is evidence to reject the null hypothesis.

However, the chi-square test alone does not provide information about the direction or strength of the association. Therefore, it is incorrect to conclude that cigarette tar level is associated with lung cancer.

The correct conclusion is that there is not enough evidence to conclude that cigarette tar level is associated with lung cancer based on the results of the chi-square test.

Additional analysis or further studies are needed to investigate the relationship between cigarette tar level and lung cancer more thoroughly.

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The probability that the inspector in-charge is convinced that the suspect is guilty given he/she has brown hair is 0.882.

Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e., how likely they are going to happen, using it. Probability can range from 0 to 1, where 0 means the event to be an impossible one and 1 indicates a certain event.

The probability formula is defined as the possibility of an event to happen is equal to the ratio of the number of favorable outcomes and the total number of outcomes.

\(P(C)\) \(=P(C \mid G) P(G)+P(C \mid G c) P(G c)\) = (1) (0.6) + (0.2) (0.4) =0.68

This is then used to update the inspector's belief in the suspect's guilt posterior to discovering that the suspect does have that characteristic.

\($$\begin{aligned}& P(G \mid C)=(P(G) P(C \mid G)) / P(C) \\& =\frac{1(0.6)}{0.68} \\& =0.882\end{aligned}$$\)

Therefore, the probability that the inspector in-charge is convinced that the suspect is guilty given he/she has brown hair is 0.882.

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Random Sampling will be able to calculate the average value of a population without statistical error.

Each sample has an equal chance of being chosen when using the sampling technique known as random sampling.

When there is little chance of data manipulation, systematic sampling is employed.

A census is a study of every element, person, or aspect of the population.

When a population is divided into clusters, a sample is chosen at random from within each cluster. This process is known as cluster sampling.

Hence, we use Random sampling for not getting statistical errors.

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im so sorry. U_U *tears fall*

Answer:

no photo

Step-by-step explanation:

we need a photo to decide if answer is correct or not

Answer:

hope this helps!

Step-by-step explanation:

You have to divide:

1.9x10^-8 ÷ (4.2x10^-13)

= appr .45 x 10^5

= .45 x 100000

= appr 45,000 times as large

source: https://www.jiskha.com/questions/1857280/estimate-how-many-times-larger-1-9x10-8-is-than-4-2x10-13

credit: mathhelper

Answer:

Step-by-step explanation:

Formula for exponential function:

Use two points from the graph to determine the function:

Substitute the coordinates and work out the values of a and b:

The function is:

The number of visitors after 5 months:

Answer:

isosceles

Step-by-step explanation:

Answer:

1 and 3 not function

2 is function

Step-by-step explanation:

Plz mark as brainliest and follow me plz

Answer:

467y6y

66 43

T68999

56 9

Step-by-step explanation:

Gftghhcryihfghobfascho

To determine the maximum number of 2/0 AWG THW aluminum compact conductors permitted in a 2½-inch PVC conduit, Schedule 80, we need to consult the applicable electrical code or standards.

The number of conductors allowed in a conduit is typically governed by factors such as fill capacity and heat dissipation.

The specific requirements may vary depending on the jurisdiction and the electrical code being followed. It is recommended to consult the local electrical code or a qualified electrician to ensure compliance with the regulations in your area.

They will be able to provide the precise guidelines and restrictions for conductor fill capacity based on the conduit size, type, and the specific application.

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Answer:

g(x)=(x+5)^2

Step-by-step explanation:

the account looks like this, because you invert the sign 5 is negative to the left, so for the result to be negative in the account it has to be positive

g(x)=(x+5)^2

(x+5)^2=0

x+5=0

x=0-5

x=-5

Good Studies!!!

The coordinates of the point D that partitions the segment in ration 1:2 is D = (4. 3).

The line segment is divided into two pieces by a point, which may or may not be equal. If we know the coordinates of the point, we may calculate the ratio by which the supplied line segment is divided. Also, if we are aware of the ratio that the line segment connecting two places has produced, we may locate the point of division. The two may be accomplished using a section formula from coordinate geometry.

The position of a point that splits a line segment connecting two points into two portions with a length ratio of m:n is found using the section formula.

The coordinates of the point A and B from the given figure is:

A = (1, 3) and B = (10, 3)

The section formula is given as:

(x, y) = (mx2 + nx1 / m+n , my2 + ny1 / m+n)

Substitute the values of m = 1 and n = 2, and the coordinates of the point A and B.

(x, y) = ((1)(10) + (2)(1)/ 3 , (1)(3) + (2)(3) 3)

D(x,y) = (4, 3)

Hence, the coordinates of the point D that partitions the segment in ration 1:2 is D = (4. 3).

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The value of b in the given function is 4.

Since we know that the coefficient of the term is 2, we can plug in the values of a and b into the equation for the axis of symmetry.

We also know that the vertex of the parabola lies on the axis of symmetry, and we can see from the graph that the vertex is at the point.

Since x = -1 and y = 6, this will be;

6 = 2(-1)² + b(-1) + 8

b = 4

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Answer:

9 hours 30 minutes

Step-by-step explanation:

we need to find the positive even integers less than k that satisfy the condition nx divided by x leaves a remainder of 2.

To solve this problem, we need to use the information given and work step by step. Let's break it down:

1. The number of toy cars that Ray has is a multiple of x. This means the number of cars can be represented as nx, where n is a positive integer.

2. When Ray loses two cars, the number of cars he has left is a multiple of x. This means (nx - 2) is also a multiple of x.

3. If x is a positive even integer less than k, we need to find the possible values for x.

Now, let's analyze the conditions:

Condition 1: nx - 2 is a multiple of x.
To satisfy this condition, nx - 2 should be divisible by x without a remainder. This means nx divided by x should leave a remainder of 2.

Condition 2: x is a positive even integer less than k.
Since x is even, it can be represented as 2m, where m is a positive integer. We can rewrite the condition as 2m < k.

To find the possible values for x, we need to find the positive even integers less than k that satisfy the condition nx divided by x leaves a remainder of 2. The number of possible values for x depends on the value of k. However, without knowing the value of k, we cannot determine the exact number of possible values for x.

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Answer:

D

Step-by-step explanation:

P(A n B) given A and B are independent events is P(A) * P(B)

The probability of intersection of event A and B is 0.135, the correct option is D.

Probability is the study of chance of an event to happen.

A and B are two independent events.

P(A) = 0.3

P(B) = 0.45

P(A ∩ B) = P(A) * P(B)

P(A ∩ B) = 0.3 *0.45

P(A ∩ B) = 0.135

Therefore, the probability of intersection of event A and B is 0.135, the correct option is D.

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This one is an interesting question.

Lets solve first the equation by isolation of the unknown x:

6x + 6 +2 = (3k / 5x )+3 +3

6x = (3k/5x) + 6 -6-2

6x = (3k/5x) -2

6x = (3k / 5x) - (10x / 5x)

6x = (3k-10x)/5x

6x*5x = 3k - 10x

30x² = 3k - 10x

30x² + 10x = 3k

30x² + 10x - 3k = 0

This is really interesting because this looks exactly like a polynomial function. So we know that there is no solution for a polynomial once the discriminant delta is strictly less than 0.

But delta = b² - 4ac where b = 10, a = 30 and c = -3k

So we need to solve delta < 0

100 - 4*30* (-3k) < 0

100 - 120*(-3)*k < 0

100 - (-360)k < 0

100 + 360k < 0

360k < -100

k < -100/360= -10/36

So there is no solution for all k strictly less than -10/36

Good luck

The values rewritten into an equivalent form as fractions include the following:

In Mathematics, a fraction simply refers to a numerical quantity which is not expressed as a whole number. This ultimately implies that, a fraction is simply a part of a whole number.

In Mathematics, a fraction comprises two (2) main parts and these include the following:

For instance, 5 by 8 should be read as "five eighths" and it simply means that five (5) parts out of eight (8) equal parts in which the whole part is divided.

Similarly, -3 by 2 should be read as "negative three halves" and it simply means that two (2) parts out of negative three (3) equal parts in which the whole part is divided. Additionally, the number 3 represents the numerator while the number 2 represents the denominator.

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Answer:

Step-by-step explanation:

The 22 degree angle is opposite to the 10 m side of the right triangle.

We need to find the length x of the hypotenuse.

Use trigonometry:

Answer:

PLEASE HELP!!!!! 100 points!!!

The angle of elevation from an anchor to the top of a flag pole is 22 If the pole is

10 meters high, how long does the wire connecting the anchor to the pole must be?

(Round answer to the 1st decimal place.)

Answer:

x = 9

y = 5

Step-by-step explanation:

<N and < M are opposite equal sides. So they are equal as well. In addition, the base is equal to the other 2 sides. That means you are dealing with an equilateral triangle. All the angles are equal to 60 degrees.

7x - 3 = 60 degrees     Add 3 to both sides

      3      3

7x = 63                         Divide by 7

x = 63/7

x = 9

Just for the sake of completeness, we'll find y

11y + 5 = 60                 Subtract 5 from both sides

     -5      -5

11y = 55                       Divide by 11

y = 55 /11

y = 5