find the next two numbers in the pattern -2,20,-200,2000

If each row behind the "row-A" has 6 more seats than row immediately in front of it, then there are (b) 46 seats in "Row-G".

The number of seats in "Row A" is = 10 seats,

We know that, each row behind the "row-A" has 6-more seats than the row immediately in front of it.

So, Number of seats in "Row-B" are =  10 + 6 = 16 seats,

Number-of-seats in "Row-C" are = 16 + 6 = 22 seats,

Number of seats in "Row-D" are = 22 + 6 = 28 seats,

Number of seats in "Row-E" are = 28 + 6 = 34 seats,

Number of seats in "Row-F" are = 34 + 6 = 40 seats,

So, According to the pattern,

Number of seats in "Row-G" will be = 40 + 6 = 46 seats.

Therefore, there are 46 seats in "Row-G", Option (b) is correct.

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Answer:

6  1/ 4  inches

Step-by-step explanation:

3/4 inch / 3 miles    *   25 miles =   6 1/4 inches

Answer:

Larry must mow approximately 25 lawns before he starts making a profit

Step-by-step explanation:

The new man's age would be 525, however the standard deviation would remain the same.

The Standard Deviation measures how evenly distributed numbers are. It has the sign (a Greek letter sigma) and the calculation is simple: it's the variance as a square root.

The average national test score is 500, for a standard deviation = 100.

Each score has been boosted by 25 points.

Let y = x + 25

where x is the old mean & y is the new score

E(x) = 500  and standard deviation (x) = 100 (given)

E(y) = E(x + 25)

     = E(x) + 25

     = 500 + 25

     = 525

Variable (y) = Variable (x + 25)

                  = Variable (x)

As, √variance y = √variance x

standard deviation(y) = standard deviation(x)

                                   = 100

Therefore, the new standard deviation is same as the old one.

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1.a The probability of throwing at most 2 heads in 5 throws is more probable.

1.b A total of 2^4 = 16 outcomes.

1.c The probability of selecting a black ball, a red ball, and then another black ball is 5/56.

1a. Probability of throwing exactly 15 heads in 20 throws

Probability of getting a head is p = 0.65, and the probability of getting tails is q = 1 - 0.65 = 0.35.

Let X be the random variable which counts the number of heads in 20 throws.

Then X follows the binomial distribution B(20, 0.65).P(X = 15) = 20C15 * 0.65^15 * 0.35^5= 0.16

Probability of throwing at most 2 heads in 5 throws

Let Y be the random variable which counts the number of heads in 5 throws.

Then Y follows the binomial distribution B(5, 0.65).P(Y ≤ 2) = P(Y = 0) + P(Y = 1) + P(Y = 2)

                                                                                                  = 0.01 + 0.08 + 0.25

                                                                                                  = 0.34

Therefore, the probability of throwing at most 2 heads in 5 throws is more probable.

1b. Suppose we flip a fair coin 4 times.

For what combination(s) do there exist exactly 3 permutations?

There are a total of 2^4 = 16 outcomes.

The combinations that exist in exactly 3 permutations are HTTH, HTHT, THHT, THTH, and HHTT.

1c. Probability of selecting a black ball, a red ball, and then another black ball We want to compute the probability of pulling out 3 balls, without replacement, from a box with 5 red balls and 3 black balls.

The total number of ways of pulling out 3 balls is 8C3.

The probability of pulling out a black ball on the first draw is 3/8.

The probability of pulling out a red ball on the second draw is 5/7.

The probability of pulling out another black ball on the third draw is 2/6 = 1/3.

So, the required probability is (3/8) * (5/7) * (1/3) = 5/56.

Therefore, the probability of selecting a black ball, a red ball, and then another black ball is 5/56.

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After six​ months, the​ subjects' symptoms are studied and compared. Answer parts​ are given below.

An assumption or concept is given as a hypothesis for the purpose of debating it and testing if it might be true.

Given:

A pharmaceutical company wants to test the effectiveness of a new allergy drug.

The company identifies 250 females​ 30–35 years old who suffer from severe allergies.

The subjects are randomly assigned into two groups.

One group is given the new allergy drug and the other is given a placebo that looks exactly like the new allergy drug.

After six​ months, the​ subjects' symptoms are studied and compared.

Here, 30-35 year-old girls are used to test the new allergy medication's effects.

(a)

Females between the ages of 30 and 35 who are the test subjects are the experimental units.

The new allergy medication, whose results are being studied, is the remedy.

It's best to choose C.

(b)

A bias may develop if a researcher or patient knows whether subjects received a medication or a placebo.

In this case, choice B is preferable.

(c)

If neither the researcher nor the subject knew whether they were receiving a medicine or a placebo, the study would be considered double-blind.

In this case, choice A is preferable.

Therefore, all the correct choices are given above.

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The complete question is given in the image.

\((n \times (12 + 18)) + 43 = 103\)

\(30n + 43 = 103\)

Subtract both sides 43

\(30n + 43 - 43 = 103 - 43\)

\(30n = 60\)

Divide both sides by 30

\( \frac{30n}{30} = \frac{60}{30} \\ \)

\(n = 2\)

Answer:

Here is the result:

(2, 3)      ↔      (2, 2)                     ∵ x = 2 is duplicated

(-5, 2)     ↔      (-5, 1)                     ∵ x = -5 is duplicated

(6, -5)     ↔      (6, 5)                     ∵ x = 6 is duplicated

(-1, 0)      ↔      (-1, 6)                     ∵ x = -1 is duplicated

Here, each matching pair has duplicated input values, so neither of them represents the function.

Step-by-step explanation:

We know that a function is a relation where each input or x-value of the X set has a unique y-value or output of the Y set.

In other words, we can not have duplicated inputs as there should be only 1 output for each input.

We are given that we need to match the ordered pairs so that the relation defined by the set of ordered pairs does not represent a function.

Therefore, all we need is to match the ordered pairs which have the same input value as it would violate the relation to be function.

Here is the result:

(2, 3)      ↔      (2, 2)                     ∵ x = 2 is duplicated

(-5, 2)     ↔      (-5, 1)                     ∵ x = -5 is duplicated

(6, -5)     ↔      (6, 5)                     ∵ x = 6 is duplicated

(-1, 0)      ↔      (-1, 6)                     ∵ x = -1 is duplicated

Here, each matching pair has duplicated input values, so neither of them represents the function.

Answer:

C. Transitive

The property is illustrated by ΔFDE ≅ ΔCAB and ΔZXY ≅ CAB is

Transitive property.

According to the transitive characteristic of congruence, "if two shapes are congruent to a third shape, then all the shapes are congruent to each other."

Thus, the transitive property of congruence is given as follows:

If ΔABC ≅ ΔPQR and ΔPQR ≅ ΔXYZ, then ΔABC ≅ ΔXYZ

We have,

ΔFDE ≅ ΔCAB and ΔZXY ≅ CAB.

Here, we can see that we have common triangle CAB.

If we know from Transitive property

If a = b and b = c then a = c.

So, here the Property used is Transitive property.

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Answer:

36

Step-by-step explanation:

Answer:

-12-15 is -27

Step-by-step explanation:

when subtracting negatives imagine there being a plus sign in the middle and pair that subtraction sign with the 15

The answer choice that is the most appropriate is B. A one-sample z-interval for estimating a population proportion

This is the most appropriate method because you are trying to estimate the proportion of all registered voters who have a favorable impression of Candidate A based on the sample data.

A one-sample z-interval is used when you want to estimate a population proportion using a sample proportion.

To calculate the one-sample z-interval for estimating a population proportion, you can use the following formula:

Confidence Interval = p ± Z * sqrt((p * (1 - p)) / n)

where:

Using this method, you will calculate a confidence interval that estimates the true proportion of registered voters who have a favorable impression of Candidate A, based on the sample data.

This is the most appropriate method because it focuses on estimating a single population proportion and incorporates the sample data and sample size into the calculation.

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Answer:

Solution: Factors of

8 = 2x2x2

12 = 2x2x3

18 = 2x3x3

24 = 2x2x2x3

LCM = 2x2x2x3x3 = 72

Add 5 to 72 to get 77 as the answer

The area of rectangle DEFG is 16 square units and its perimeter is 12 units.

To find the area, we can use the formula: Area = length x width We can find the length and width by calculating the distance between the coordinates of opposite sides of the rectangle.

Length = EF =

\( \sqrt{} ((2-1)^2 + (1-3)^2)\)

=

\( \sqrt{} (2 + 4) = \sqrt{} (6)\)

Width = DG =

\( \sqrt{} ((-3+2)^2 + (1+1)^2) = \sqrt{} (2 + 4) = \sqrt{} (6)\)

The area of rectangle DEFG = length x width =

\( \sqrt{} (6) x \sqrt{} (6)\)

= 6 x 2 = 16 square units.

To find the perimeter, we can add up the lengths of all four sides: Perimeter = DE + EF + FG + GD

DE =

\( \sqrt{} ((1+3)^2 + (-3+(-1))^2) = \sqrt{} (16 + 4) = \sqrt{} (20)\)

EF =

\( \sqrt{} ((2-1)^2 + (1-3)^2) = \sqrt{} (2 + 4) = \sqrt{} (6)\)

FG =

\( \sqrt{} ((2+2)^2 + (1+1)^2) = \sqrt{} (16 + 4) = \sqrt{} (20)\)

GD =

\( \sqrt{} ((-2+3)^2 + (-1-1)^2) = \sqrt{} (1 + 4) = \sqrt{} (5)\)

The perimeter of rectangle DEFG =

\( \sqrt{} (20) + \sqrt{} (6) + \sqrt{} (20) + \sqrt{} (5) \)= 12 units.

Hence, The area of the rectangle is 16 square units and the perimeter is 12 units.

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The distance and bearing of the second boat are 4√5 km and 63.435°

respectively.

Pythagoras theorem states that for a right angled triangle, the square of the hypotenuse is the sum of the squares of base and altitude.

Given is a right angled triangle.

We have to calculate the distance of A from C, which is the distance d.

Using the Pythagoras theorem,

(AC)² = (AB)² + (BC)²

d² = 8² + 4²

d² = 64 + 16

d² = 80

d = √(16 × 5)

  = 4√5 km

Bearing is the angle measured clockwise from north.

Let θ be the angle CAB.

sin θ = BC / AC

        = 4/ (4√5)

        = 1/√5

θ = 26.565°

Bearing, x = 90 - θ = 63.435°

Hence the bearing of the second boat is 63.435°.

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Answer:

y ≤ -3x - 3

Step-by-step explanation:

The graph crosses the y axis at -3.  The slope is -3.  (0, -3) .  From that point do down vertical 3 spaces and horizontally 1 space.  You will be at the point (1,-6)  Draw a line to join those 2 points.  The inequality is ≤ that means the solutions are the points on the line and below the line.  This is shown in the pink shading.

y ≤ -3x - 3

Step-by-step explanation:

The graph crosses the y-axis at -3.  The slope is -3.  (0, -3) .  From that point do down vertical 3 spaces and horizontally 1 space.  You will be at the point (1,-6) Draw a line to join those 2 points.  

The inequality is ≤ which means the solutions are the points on the line and below the line.  This is shown in the pink shading.

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On average, slightly more dogs attended the Level 2 class than the Level 1 class.The mean number of dogs attending the Level 1 class was 7.92, and the mean number of dogs attending the Level 2 class was 9.48.

The box plots provided show the results of Julia's two dog training classes. The Level 1 class helps dogs learn the basics, while the Level 2 class focuses on more advanced commands. From the box plots, we can see that the Level 1 class was attended more consistently than the Level 2 class, with the majority of classes having between 5 and 10 dogs attending. The Level 2 class, on the other hand, had more variability in attendance, with some classes having up to 18 dogs and other classes having as few as 3. The median number of dogs attending the Level 1 class was 8, while the median number of dogs attending the Level 2 class was 10. The mean number of dogs attending the Level 1 class was 7.92, and the mean number of dogs attending the Level 2 class was 9.48. This indicates that, on average, slightly more dogs attended the Level 2 class than the Level 1 class.

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Answer:

7a - 4ab + 3b

Step-by-step explanation:

5a - 3ab + 6b - (ab - 2a + 3b)

=5a - 3ab + 6b - ab + 2a - 3b

=7a - 4ab + 3b

Statement (b) and (c) are true about the situation.

Using standardized instruments or units, measurements are the process of figuring out the size, quantity, or degree of anything.

Using the given function, h(t) = -5t^2 + 10t + 3, we can determine the true statements about the situation:

a. False: The diver begins at h(0) = 3 meters above the water, not 5 meters.

b. True: The diver begins at h(0) = 3 meters above the water.

c. True: The function has one zero that makes sense.

To find it, we set h(t) = 0 and solve for t:  -5t² + 10t + 3 = 0

Using the quadratic formula, we find that: t ≈ 2.161

This means that the diver reaches a height of zero after 2.161 seconds.

d. False: As we found in part (c), the function has only one zero.

e. False: The graph of the function does not start at the origin.

f. False: The diver begins at 3 meters above the water, not at the same height as the water level.

Therefore, statement (b) and (c) are true about the situation.

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Complete question-

Let's simplify the given expression.12r - 5A = 6(2r + (-1)) + 1B - 4(2 + (3r)) + 3C = 12r - 6 + B - 8 - 12r + 3C = -14 + B + 3C - 5AThe equivalent expressions are: -5A + B + 3C - 14Hence, the answer is:Equivalent expressions to 12r - 5A are: -5A + B + 3C - 14.

To simplify the given expression, let's break it down step by step:

12r - 5A = 6(2r + (-1)) + 1B - 4(2 + (3r)) + 3C

Simplifying the parentheses:

12r - 5A = 6(2r - 1) + 1B - 4(2 + 3r) + 3C

Expanding and combining like terms:

12r - 5A = 12r - 6 + B - 8 - 12r + 3C

Simplifying further:

12r - 5A = -14 + B + 3C

Therefore, the simplified expression is:

Equivalent expressions to 12r - 5A are: -5A + B + 3C - 14.

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The correct answer to the question is A. The new angle measures will be congruent to the original angle measures.

When a triangle is enlarged by a scale factor of 2, all of its sides are multiplied by 2, resulting in a triangle that is twice the size of the original triangle. However, the angle measures in the new triangle will remain the same as the original triangle. This is because angle measures are determined by the ratio of the lengths of the sides of the triangle, not the length of the sides themselves. Since the ratios of the sides in the original triangle and the new triangle are the same, the angle measures must also be the same. Option B is incorrect because the new angle measures will not be twice the measure of the original angle measures. Option C is also incorrect because the new angle measures will not be half the measure of the original angle measures. Option D states that there is not enough information to tell, but this is not the case. We know that the triangle is being enlarged by a scale factor of 2, which is enough information to determine that the new angle measures will be congruent with the original angle measures.
In conclusion, when a triangle is enlarged by a scale factor of 2, the angle measures in the new triangle will be congruent to the original angle measures. This is an important concept in geometry and can be used to solve many problems involving similar triangles.

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Answer:

y =  -2

Step-by-step explanation:

To find the answer, use property of inequality:

10-5y=20
Undo the +10, so - 10 to the other side
so,
-5y= 10, or -5xY.

so divide by -5 from both sides:

10/-5=-2
so, the remain of the equation is:
y = -2
which is the answer

If the original price of the radio is 2,400 Naira and it is reduced by one third, then the discounted price is 1,600 Naira.

A store usually provides discount of some items to attract more customers and make greater sales.

Suppose the original price is p, the discount rate is d%, and the discounted price is q, then the discounted price can be calculated as:

q = (1 - d%) x p

Parameters given in the problem:

p = 2,400 Naira

d = 1/3

Hence,

q = (1 - 1/3) x 2400

q = 2/3 x 2400 = 1600

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Answer:

750 meters per minute

Step-by-step explanation:

kilometer = 1000 meters

hour = 60 minutes

(45 x 1000)/60 = 750

Answer:

Step-by-step explanation:

The difference quotient in general looks like

\(\frac{f(x+h)-f(x)}{h}\)   Sometimes the symbol "delta x"  \(\Delta x\)   is used instead of h.

For the exponential function, the difference quotient is

\(\frac{e^{x+h}-e^x}{h}\)

Answer:

For those who dont want to read, its A.

Step-by-step explanation:

Edge 2021

Answer:

Step-by-step explanation:

Comparing

This is not same as u = v, so the answer is false

Answer:

41

Step-by-step explanation:

2021 eng

Answer:

Step-by-step explanation:

The equation which most accurately represents the word problem,  is (b) 68 = 2L + 2(9).

The word problem states that the perimeter of a rectangle is 68 inches, and the perimeter equals twice the length (L) plus twice the width (9). We can represent this relationship by using the equation as :

We know that, the perimeter of rectangle is : 2(length + width),

Substituting the value,

We get,

⇒ 68 = 2(L + 9);

⇒ 68 = 2L + 2(9); and this statement is represented by Option(b).

Therefore, the correct equation is (b) 68 = 2L + 2(9).

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The given question is incomplete, the complete question is

Select the equation that most accurately depicts the word problem.

"The perimeter of a rectangle is 68 inches. The perimeter equals twice the length of L inches, plus twice the width of 9 inches".

(a) 68 = 9(L + 2)

(b) 68 = 2L + 2(9)

(c) 68 = 2(L - 9)

(d) 68 = 9L + 2

(e) 68 = 2/L + 2/9

(f) 68 = L/2 + 2(9)