Math 8
given:triangle TWO is coungruent to triangle ISX
m of angle O is = 55 degrees
SX = 4
find: a. M angle X = ____
b. WO = ____

Answer:  I believe A is the correct answer

Step-by-step explanation:

add -7x to the other side so the equation is

y=7x-2

slope is 7

y-int is -2

The correct answer is d. A detailed spreadsheet filled with measurements about the air quality of different major cities is an example of computer-readable data.

Computer-readable data refers to any information that can be interpreted and processed by a computer system. A handwritten note, brain waves, and a physical photograph cannot be read and interpreted by a computer without undergoing a digitization process first.

On the other hand, a detailed spreadsheet containing well-structured data that can be easily read by a computer, such as in the case of air quality measurements, can be easily processed and analyzed by computer software. This data can be used to generate visualizations, perform statistical analysis, and extract insights that can inform decision-making.

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The question is -

Which of the following statements is an example of computer-readable data?

a. A handwritten note

b. Brain waves

c. A physical photograph

d. A detailed Spreadsheet filled with measurements about the air quality of different major cities

Answer: 15 meters

Step-by-step explanation:

Given the relation:

h(x) = −5(x+1)(x−3)

Where h is the height at time 'x' after diving

At the time of diving, time 'x' = 0, that her height just before making the dive

Therefore,

h(0) = - 5(0 + 1)(0 - 3)

h = - 5(1)(-3)

h = - 5 × - 3

h = 15

Therefore, h = 15 meters

Answer:

15 meters but you should give the other person brainliest!! they did really good!!

Step-by-step explanation:

Answer:

Y=12.50x+2.00

Step-by-step explanation:

The linear equation that will show the cost of membership and each movie seen will be C = 2n + 12.5.

A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

Cinemark is having a summer special. If you get a membership one-time cost is $12.50 plus $2.00 per movie that you watch.

The slope of the line is $2.00 and the y-intercept of the line is $12.50.

Let C be the total cost and n be the number of movies. Then the linear equation will be

C = 2n + 12.5

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Answer:

The product is  -81 t² + 16

Step-by-step explanation:

The product of two binomials (ax + b)(cx + d), where a, b, c, and d are constant

Multiply (ax) by (cx) ⇒ 1st × 1st

Multiply (ax) by (d) and (b) by (cx) ⇒ ext-reams and nears

Add the two products ⇒ like terms

Multiply (b) by (d) ⇒ 2nd × 2nd

Let us find the product of (9 t - 4) and (-9 t - 4)

Multiply the 1st two terms

∵ (9 t)(-9 t) = -81 t²

Multiply the ext-reams

∵ (9 t)(-4) = -36 t

Multiply the nears

∵ (-4)(-9 t) = 36 t

Add the like terms

∵ -36 t + 36 t = 0

Multiply the 2nd two terms

∵ (-4)(-4) = 16

Write the answer

∴ (9 t - 4)(-9 t - 4) = -81 t² + 0 + 16

∴ (9 t - 4)(-9 t - 4) = -81 t² + 16

The product is  -81 t² + 16

Answer:

Step-by-step explanation:

35. 4

36. 4

37. 16

38. 4

39. 2

40. 2

Answer:

35. 4

36. 4

37. 16

38. 4

39. 2

40. 2

Step-by-step explanation:

35. Y/3

= 12/3

= 4

36. x/2

= 8/2

= 4

37. xy/6

= 8 * 12/6

= 96/6

= 16

38. y/6 + x/4

= 12/6 + 8/4

= 2 + 2

= 4

39. 24/x - 1

= 24/8 - 1

= 3 - 1

= 2

40. y + 2/7

= 12 + 2/7

= 14/7

= 2

The sum of all these probabilities is equal to 1, which is the total probability of all possible outcomes.

To solve this problem, we need to consider all the possible outcomes that result in at most four successes. These outcomes are:

0 successes

1 success

2 successes

3 successes

4 successes

The probability of each of these outcomes can be calculated using the binomial distribution formula:

P(k) = (n choose k) \(* p^k * (1-p)^(n-k)\)

where n is the number of trials, k is the number of successes, and (n choose k) is the binomial coefficient, which is equal to n!/(k!*(n-k)!).

To find the probability of at most four successes, we need to add up the probabilities of all these outcomes. So the expression that would provide the answer is:

P(0 successes) + P(1 success) + P(2 successes) + P(3 successes) + P(4 successes)

This expression includes all the possible outcomes that correspond to having at most four successes in five trials. Note that it does not include the probability of having five successes, since we are only interested in the probability of at most four successes.

For example, if the probability of success in each trial is 0.3, then the probability of having zero successes is:

P(0 successes) = (5 choose 0)\(* 0.3^0 * 0.7^5 = 0.168\)

Similarly, the probability of having one success is:

P(1 success) = (5 choose 1) \(* 0.3^1 * 0.7^4 = 0.360\)

We can calculate the probabilities of having two, three, and four successes in a similar way. Then, we can add up all these probabilities to get the probability of at most four successes:

P(at most 4 successes) = P(0 successes) + P(1 success) + P(2 successes) + P(3 successes) + P(4 successes)

In this example, we get:

P(at most 4 successes) = 0.168 + 0.360 + 0.308 + 0.132 + 0.032 = 1.000

Note that the sum of all these probabilities is equal to 1, which is the total probability of all possible outcomes.

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Mean : 1.9

Median : 1.95

These are the answers.

Some examples of cardiovascular in physical fitness activities are:

Jogging, cycling, swimming, aerobics, rowing, stair climbing, hiking, cross-country skiing, and sport-related games.

Cardiovascular fitness is a positive health component of staying fit that is brought about by routine physical activity.

We have,

Cardiovascular fitness tells about our health and the potential for health outcomes.

Some examples of cardiovascular in physical fitness activities are:

- Walking

- Jogging

- Running

- Cycling

- Swimming

- Aerobics

- Rowing

- Stair climbing

- Hiking

- Cross-country skiing

- Sports

Thus,

The examples are mentioned above.

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Answer:B

Step-by-step explanation:

Answer:

The answer is C. -2/-5

Step-by-step explanation:

I tried B, but it was incorrect, so then I tried C, turns out C was correct my dudes.

The probability that the mean IQ of three North Catalina students is at least 5 points higher than the mean IQ of three Chapel Mountain students needs to be determined.

To calculate the probability, we need to consider the IQ scores of both groups as random variables. Assuming the IQ scores follow a normal distribution, we can calculate the probability based on the difference between the means of the two groups.

Let's denote the mean IQ of the North Catalina students as μ1 and the mean IQ of the Chapel Mountain students as μ2. We are interested in finding the probability that μ1 - μ2 is at least 5 points.

To calculate this probability, we need to know the standard deviation of IQ scores for both groups and assume they are equal. Additionally, we assume that the IQ scores of individual students are independent.

By applying statistical techniques, such as the Central Limit Theorem or the distribution of the difference between two means, we can determine the probability of interest.

It's important to note that the specific values for the means and standard deviations of IQ scores for the two groups are not provided in the question. Therefore, the calculation of the probability will require this missing information.

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Answer:

its d

Step-by-step explanation

you multiply 3 x 3.14 and see if its greater

Answer:

The answer is -3x + 6y = 36

Step-by-step explanation:

Answer:

C) $540

Step-by-step explanation:

180 + (120 x 0.20)(15) = $540

Answer:

C. 540

Step-by-step explanation:

120 × 15

=1800

1800 × 20%

=360

360 + 180

= 540

Answer:

convert km into m

1 km=1000m

360 km=1000*360m

=360000m

again,convert 3 hours into seconds

3 hours=60*60*3

=10800 second

average spped=total distance /time taken

=360000/10800

=33.33 m/s

Step-by-step explanation:

The statistical interpretation of this interval is that we can be 95% confident that the true proportion of incoming college students who took the SAT in high school falls within this range.

a.) The individual object in the study was a randomly selected incoming college student.

b.) The variable information recorded for each object in the study was whether or not they took the SAT in high school.

c.) The statistical interpretation of the confidence interval in the context of this problem is that we can be 95% confident that the true proportion of incoming college students who took the SAT in high school is between 9.2% and 10.8%.

d.) The symbol for the point estimate is "p" and its value is not provided in the given information.

e.) The margin of error for the given interval is (10.8% - 9.2%)/2 = 0.8%.

f.) The relation on the number line between the numeric values of the point estimate and the interval estimate for "p" is that the point estimate value falls within the interval estimate, indicating that the point estimate is within the range of possible values for the proportion.

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Answer:

18

Step-by-step explanation:

Take the 54. The cake reduces her size by 1/3 so you multiply 54*1/3 to get 18 inches or 1.5 feet tall. :)

Answer:

I don't know what's I don't know I'm really sorry very very very very very very very very very very very very sorry very sorry

Answer: Water: 120 gallons

Premium Antifreeze: 200 gallons

Step-by-step explanation:

Had to complete the question first.

A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The premium antifreeze solution contains 80% pure antifreeze. The company wants to obtain 320 gallons of a mixture that contains 5% pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed?

Water: ____ gallons

Premium Antifreeze: _____ gallons

Solution:

Let w = amt of water required

An equation based on the the percent water, an 80% solution is 20% water

Multiply through

= 20% (320 - w) + w = 50% x ( 320)

64 - 0.2w + w = 160

Collecting like times

0.8w = 160 - 64

w = 96%

w = 120 gal of water to produce 320 gal of 50% antifreeze

320 - 120 = 200 gal of 80% solution

Water: 120 gallons

Premium Antifreeze: 200 gallons

a) the study has been done by controlling the groups hence it is an experiment.

b) The persons are assigned randomly o each group hence it is a randomized design.

c) the explanatory and response variables. are:

Effect of listening to music by Mozart

IQ of the person

What are an experiment and observational study?

In observational research, participants are measured or surveyed without any attempt to influence them. In a controlled experiment, participants or objects are divided into groups, and one group is given treatment while the other is not.

What are randomized or block designs?

An experimental design known as a randomized block design divides the experimental units into units known as blocks. The experimental units inside each block are assigned the treatments at random. We have a fully randomised block design when each block has at least one instance of each treatment.

a. Is this an experiment or an observational study?

Since the study has been done by controlling the groups hence it is an experiment

b. If it is an experiment, is it randomized or block design?

Since the persons are assigned randomly o each group hence it is a randomized design

c. If it is an experiment, identify the explanatory and response variables.

explanatory variable = effect of listening to music by Mozart

response variable =  IQ of the person

(d)Three levels of the treatment  effect of listening to music by Mozart

level 1: listen to Mozart's music

level 2: told to relax

level 3: no instructions

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Since in the figure, m || n, the value of x is equal to 13.

In Mathematics, corresponding angles can be defined as a postulate (theorem) which states that corresponding angles are always congruent when the transversal intersects two (2) parallel lines. This ultimately implies that, the corresponding angles will be always equal (congruent) when a transversal intersects two (2) parallel lines.

By applying corresponding angles theorem to lines a and b, we have the following:

∠m ≅ ∠n

7x - 1 = 8x - 14

8x - 7x = 14 - 1

x = 13

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The image of the coordinates after a dilation of (9, −7) by a scale factor of 4 centered at the origin include the following: (36, -28).

In Geometry, dilation can be defined as a type of transformation which typically changes the size of a geometric object, but not its shape. This ultimately implies that, the size of the geometric object would be increased or decreased based on the scale factor used.

Next, we would have to dilate the coordinates of the preimage (9, -7) by using a scale factor of 4 centered at the origin as follows:

Coordinate A (9, -7) → Coordinate A' (9 × 4, -7 × 4) = Coordinate A' (36, -28).

In conclusion, the coordinates of the image after a dilation are  (36, -28).

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Answer:

Step-by-step explanation:

You first collect isolate all the variables

-3x+4/5=-2/3x+12

Subtract 4/5 from both side and add2/3x from both sides

-7/3x=56/5

You then multiply both sides by the reciprocal of the coefficient of the variable, in this case -3/7

-7/3x*(-3/7)=(56/5)*(-3/7)

x=-168/35

x=-24/5

Answer:

45

Step-by-step explanation:

Answer:

45

Step-by-step explanation

Juan has just completed a 15 kilometer race in 20 minutes.  What was his average speed in kilometers per hour?

Solution

First, 15 kilometers is a distance, so

       d  =  15

Next, we are given 20 minutes and we are asked to present the speed in kilometers per hour rather than kilometers per minute.  We need to convert 20 minutes to hours.  Since there are 60 minutes per hour, we divide by 60 to find out how many hours it took

t  =  20 minutes / 60 minutes per hour =  1/3 hours

Now we can use the d=rt equation:

15  =  (r)(1/3)

If we multiply both sides

(3)(5)  =  (r)(1/3)(3)  or  r  =  45

Juan's average speed was 45 kilometers per hour.

Answer:

C

Step-by-step explanation:

The Area of sector is π cm². so option D is correct.

The sector of a circle is like a slice of a circular pizza.

\(A = \dfrac{x \times \pi r^2}{360} \: \rm unit^2 area\)

Mathematically π  radians = 180 degrees

thus, π /6 radians =  180/6 = 30 degrees

The formula for the length of an arc is;

Ф/360 x 2πr

where Ф, is 30 degrees

And the arc length is pi

so we have

30/360 x 2πr = π

30/360 x 2r = 1

60r = 360

r = 360/60

r = 6 cm

Now the area of a sector is;

Ф/360 x πr^2

30/360 x π36

= π cm^2

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Answer:

The two possible outcomes are 4 and -12, so 4

Step-by-step explanation:

The greatest value of x  is 4.

Factorization is when you break a number down into smaller numbers that, multiplied together, give you that original number. When you split a number into its factors or divisors, that's factorization.

Given equation

⇒ \(x^{2} +8x-30 = 18\)

⇒ \(x^{2} +8x-30-18=0\)

⇒ \(x^{2} +8x-48=0\)

⇒ \(x^{2} +12x-4x-48=0\)

⇒ \(x(x+12)-4(x+12)=0\)

⇒ \((x+12)(x-4)=0\)

x = -12 and x = 4

Hence, the greatest value of x  is 4.

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