Find the common ratio of the geometric sequence 18,-90,450,...

Answer:

40.9 %

Step-by-step explanation:

8.8   is   .4 hours above the mean this is  .4/1.77 = .226 standard deviations above the mean

 Using z-score table this corresponds to ~ .5910    (59.10%)

    this percentage is LESS than 8.8 hours

      the percentage ABOVE this is 40.9%

(Not asked, but this is  40.9 (40 ) = ~ 16 of the 40 mechanics sampled)

Answer: 9 g

Step-by-step explanation:

Length of the train is 40 m. Therefore, option C is the correct answer.

Given that, a train traveling at a steady speed crossed a bridge which was 200 m long in 1 minute.

The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance traveled by a body in a given period of time. The SI unit of speed is m/s.

Now, 1 minute = 60 seconds

Here, speed of train = 200/60 = 3.33 m/s

Length of train = 3.33 × 12

= 39.96 m

≈ 40 m

Length of the train is 40 m. Therefore, option C is the correct answer.

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Answer:

rectangle , parallelogram and rhombus

Step-by-step explanation:

Since a square has 4 right angles, it can also be classified as a rectangle. Since a square has 4 sides of equal length, it can also be classified as a rhombus. The opposite sides are parallel so a square can also be classified as a parallelogram.

Answer:

x=9

Step-by-step explanation:

first you would distribute the -4 and the -12

-24x-12=-12x-120

Then you would add 120 to both sides

-24x+108=-12x

Then add 24x to both sides

108=12x

Then divide both sides by 12

x=9

Answer:

\(x = 9\)

Step-by-step explanation:

\( - 4(6x + 3) = - 12(x + 10) \\ - 24x - 12 = - 12x - 120 \\ - 24x + 12x = 12 - 120 \\ - 12x = - 108 \\ \frac{ - 12x}{ - 12} = \frac{ - 108}{ - 12} \\ x = 9\)

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

Graph attached below

Step-by-step explanation:

3n=n-2

3n-n=2

2n=2

n=1

Hope it helps you! Please mark Brainliest! :)

a)

i) The mean number of refunds given in the summer is 21.

ii) The mean number of refunds given in the winter is 20.

b) The answer to part a) does NOT support the hypothesis.

To calculate   the mean number of refunds given in the summer and winter,we need to find the average of the  values for each season over the given years. Let's calculate  -

a) Mean number of refunds given in the summer  -

(20 + 15 + 10 + 15 + 32 + 34) / 6

= 126 / 6

 = 21

b) Mean number of refunds given in the winter   -

(24 + 10 + 15 + 18 + 26 + 27) / 6

= 120 / 6

= 20

The mean   number of refunds given in thesummer is 21, and the mean number of refunds given in the winter is 20.

b) Based on the calculated means, the answer to part a) does NOT support the hypothesis.

The mean number   of refunds given in the summer (21) is greater than the mean number of refunds given in thewinter (20), indicating that more refunds are   given in the summer than in the winter, contrary to the hypothesis.

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Answer:

85

Step-by-step explanation:

the mean is equal to=99+66+90=255

255÷3=85

Answer:

Anna's test average would be 85%.

Step-by-step explanation:

To find the average, you have to do 66 + 90 + 99 to get an answer of 255. The next thing you do is divide 255 by 3 to get a final answer of 85%. :) I hope this helps! ^^

Answer:

the length of BC is 16

Step-by-step explanation:

Answer:

112 cm

Step-by-step explanation:

14 x 8 = 112

Answer:

\(Area = 8\)

Step-by-step explanation:

Given

The attached figure

Required

Determine the area

The shape is a trapezium. So, the area is:

\(Area = \frac{1}{2} *(Sum\ of\ parallel\ sides) * Height\)

From the attached,

The height is 2

The parallel sides are: 2 and 6

So, the area is:

\(Area = \frac{1}{2} *(2 + 6) * 2\)

\(Area = \frac{1}{2} *8 * 2\)

\(Area = 8\)

Hence, the area is 8 units square

Answer:

B. Negative 4

Step-by-step explanation:

Answer:

solar

Step-by-step explanation:

69 ÷ 7 = 9 r6

hope it helps.

The range of the absolute value function y = |x| is all non-negative numbers, which can be expressed as [0, ∞).

The absolute value function is a type of mathematical function that measures the distance between a given number and zero. It is denoted by two vertical bars surrounding the number or expression.

The range of the absolute value function is the set of all non-negative numbers. This is because the absolute value of any number is always a positive number or zero.

For example, the absolute value of 3 is 3, and the absolute value of -3 is also 3.This means that the output of the function can never be negative and can range from zero to infinity.

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The range of the absolute value function below is C. f(x) < 1.

The domain and range of a function are the components of a function. The domain is the set of all the input values of a function and range is the possible output given by the function. Domain→ Function →Range.

The range of a function is the set of all its outputs. Example: Let us consider the function f: A→ B, where f(x) = 2x and each of A and B = {set of natural numbers}.

The function y=|ax+b| is defined for all real numbers. So, the domain of the absolute value function is the set of all real numbers. The absolute value of a number always results in a non-negative value.

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What is the range of the absolute value function below?

f(x) > -4

f(x) > -1

f(x) < 1

f(x) < 4

Answer:

2c + 7w = 16

3c + 8w = 19

Step-by-step explanation:

Just follow the two statements.

2 cups of coffee and 7 bottles of water cost $16.

2c + 7w = 16

3 cups of coffee and 8 bottles of water cost $19.

3c + 8w = 19

3 is the slope of the given function y=3x+5.

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

The given function rule is y=3x+5.

Let us find some x and y values to plot the graph.

x=0, then y=3(0)+5=5

x=1, then y=3(1)+5=8

x=2, then y=3(2)+5=11

x=3, then y=3(3)+5=14

x=4, then y=3(4)+5=17

Now by taking these value we plot the graph.

In the given graph slope is 3.

Hence, 3 is the slope of the given function y=3x+5.

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Answer:

The average number of daily miles traveled by these individuals was 11.72 miles per day.

Step-by-step explanation:

Given that in 2004, Pen Hadow and Simon Murray walked 680 miles to the South Pole, and the trip took 58 days, to determine the average number of miles traveled per day by these individuals the following mathematical calculation must be performed:

680/58 = X

11.72 = X

Thus, the average number of daily miles traveled by these individuals was 11.72 miles per day.

Gender is categorical nominal, end-of-the-year stock classification is categorical and ordinal, and distance is quantitative and ratio.

Quantitative variables are measured with numbers. Some examples include:

Weight measured in kilos

The distance measured in meters or kilometers

Time measured in seconds or hours

On the other hand, a categorical variable is defined by features, categories, or concepts rather than numbers. Here is an example:

Breeds of dogs: Poodles, Boston Terriers, German shepherds, etc.

Moreover, variables can be classified as:

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Answer:

The least common multiple of 40, 36 and 32 is 1440.

Step-by-step explanation:

Greetings !

The LCM of a, b

Is the smallest positive number that is divisible by both a and b.

prime factorization of 32:

\(2.2.2.2.2\)

prime factorization of 40:

\(2.2.2.5\)

prime factorization of 36:

\(2.2.3.3\)

Compute a number comprised of factors that appear in at least one of the following

32,40,36

\( = 2.2.2.2.2.5.3.3\)

Multiply the numbers 2.2.2.2.2.5.3.3 = 1440

\( = 1440\)

Hope it helps !!!

Answer:

lol

Step-by-step explanation:

Answer:

math kinda sucks. :) Brainliest pls???

Step-by-step explanation:

Now we know PR∥QX , according to construction with transversal line TX.

∠PTS=∠QXS (Alternate angle)

In △PTS and △QSX

∠PTS=∠QXS (Alternate angle)

∠PST=∠QSX(vertically opposite angles)

PS=SQ(S is mid point of PQ)

△PTS≅△QSX(AAS rule)

So, TP=QX(CPCT)

As we know, TP=TR (T is midpoint)

Hence, TR=QX

Now, in quadrilateral TSQR

TS∥QR

Hence proved.

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Answer:

19 678932

Step-by-step explanation:

i am not sure

After the double rotation, the vertices of the quadrilateral MNPQ are transformed to M'', N'', P'', and Q''. The shape of the quadrilateral may have changed, but the order of the vertices remains the same.

When a quadrilateral MNPQ is rotated counterclockwise at 90 degrees about the origin, each vertex undergoes a transformation.

The new positions of the vertices after this rotation can be denoted as M', N', P', and Q'. The order of the vertices remains the same.

Next, when the rotated quadrilateral M'N'P'Q' is further rotated counterclockwise at 270 degrees about the origin, each vertex undergoes another transformation.

The new positions of the vertices after this rotation can be denoted as M'', N'', P'', and Q''. Again, the order of the vertices remains the same.

It's important to note that a 270-degree counterclockwise rotation is equivalent to a 90-degree clockwise rotation.

The result of the double rotation is equivalent to a single clockwise rotation of 90 degrees.

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Answer:

constant

Step-by-step explanation:

It does not change the constant!

Thus, probability that the one drawn penny is from 1977 dated pennies is 6/25.

The probability about an occurrence in an experiment is the likelihood that the event will occur. Any event's probability is a number between (including all) "0" and "1".

If an event's probability is represented by P(E), then we get

Given data:

Total pennies = 50

number of 1977 dated pennies = 12

probability = favourable outcome / total outcome

probability(1977 dated pennies) = number of 1977 dated pennies/ Total pennies

probability(1977 dated pennies) = 12/50

Divide numerator and denominator by 2.

probability(1977 dated pennies) = 6/25

Thus, probability that the one drawn penny is from 1977 dated pennies is 6/25.

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Answer:

x = -3

Step-by-step explanation:

isolate the variable by dividing each side by factors that don't contain the variable. i really hope this makes sense and helps:)

Step-by-step explanation:

1

Distribute

10−4(6+2)=74

10{\color{#c92786}{-4(6x+2)}}=7410−4(6x+2)=74

10−24−8=74

10{\color{#c92786}{-24x-8}}=7410−24x−8=74

2

Subtract the numbers

10−24−8=74

{\color{#c92786}{10}}-24x{\color{#c92786}{-8}}=7410−24x−8=74

2−24=74

{\color{#c92786}{2}}-24x=742−24x=74

3

Subtract the same term from both sides of the equation

2−24=74

2-24x=742−24x=74

2−24−2=74−2

2-24x{\color{#c92786}{-2}}=74{\color{#c92786}{-2}}2−24x−2=74−2

4

Simplify

Subtract the numbers

Subtract the numbers

again

−24=72

-24x=72−24x=72

5

Divide both sides of the equation by the same term

−24=72

-24x=72−24x=72

−24−24=72−24

\frac{-24x}{{\color{#c92786}{-24}}}=\frac{72}{{\color{#c92786}{-24}}}−24−24x=−2472

6

Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

=−3

x=-3x=−3

Solution

x=-3