nilai rata2 matematik dari 10 siswa adalah 55 jika digabungkan lagi dengan 5 siswa maka nilai rata2 menjadi 53tentukan nilai rata2 dari 5 siswa tersebut

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Answer 1

Answer: Jaidysiwbdhksjquejehwwhhwhejeuejeuueeuw.

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Can someone tell me if the following steps in the correct order or where I went wrong? In experimental studies, we follow a logical method to arrive at a conclusion. Arrange the given steps in the correct sequence. State a problem Make Hypothesis perform an experiment to collect data. Ask relevant questions Arrival at a logical conclusion. Compare with the baseline value of the control group. should I switch the last two around?
Which number produces an irrational number when added to 1/2
the length of a rectangular yard is 30 meters. the perimeter is at most 90 meters. describe the width of the yard
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In an experiment using 30 mice, the sample proportion of the mice that gained weight after a drug injection is 0.65. What is the 99.7% confidence interval for the actual proportion in the population?a)between 0.602 and 0.697

b)between 0.563 and 0.737

c)between 0.476 and 0.824

d)between 0.389 and 0.911

Answers

The answer is B.) between 0.563 and 0.737

Plz help on matching i don't have the t-84 calculator so i cant do it

Answers

1) Mean: 14.567
2) Sample size: 30
3) Standard deviation: 1.647
4) Median: 14.5
5) margin of error: 0.601
6) upper confidence level: 15.168
7) lower confidence level: 13.966
8) Maximum value: 18
9) first quartile: 13
10) third quartile : 16

70 ans 20 in simplest fore in ratios

Answers

Assuming that you just made a typo the answer would be 7:2

Both numbers are divisible by 10, and 7 and 2 share no common factors as they are both prime numbers making it the most simplified

A suitcase measures 24 inches long and 18 inches high. What is the diagonal length of the suitcase to the nearest tenth of a foot?

Answers

diagonal
draw an immaginary line diagonal
now yo has right triangle

pythagorean theorem
if yo has a right triangle with legs legnth a and b and hypotonuse c (diagonal), then a^2+b^2=c^2

legs are 24 and 18
18^2+24^2=c^2
324+576=c^2
900=c^2
sqrt both sides
30=c

diagonal legnth=30 inches

The simple answer is D :)

if light bulbs are 4 for $2.00 , how much will 12 light bulbs cost , round to the nearest cent if necessary?

Answers

If 4 are $2.00 , then x3 to get 12 light bulbs and 2x3=6 so it's $6.00

The mean score on a calculus exam was 40, and the standard deviation was 5. The teacher decided to double everyone’s score and then added 7 points. What are the values of the mean and standard deviation of the distribution of transformed exam scores? (Options: mean = 80 and standard deviation = 5, mean = 80 and standard deviation = 10, mean = 87 and standard deviation = 5, mean = 87 and standard deviation = 10, mean = 87 and standard deviation = 17)

Answers

The new mean becomes 87 (40*2+7), while the new standard deviation becomes 10 (5*2). The correct option is then option D.

hope this helps! please give brainliest :)

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A spring has an original length L inches. When a weight of x pounds is suspended from the spring, its new length y is given by the formula y = L + x k , where k is a constant, measured in pounds per inch. Solve the formula for x. Show the steps in your work. The value of k for a certain spring is 2.5. The length of the spring is found to be double its original length when a 10 pound weight is suspended from it. Write the equation for the original length of the spring and solve it. Show the steps in your work.

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Tomas learned that the product of the polynomials (a + b)(a2 – ab + b2) was a special pattern that would result in a sum of cubes, a3 + b3. His teacher put four products on the board and asked the class to identify which product would result in a sum of cubes if a = 2x and b = 1.Which product should Tomas choose? (2x + 1)(2x2 + 2x – 1) (2x + 1)(4x3 + 2x – 1) (2x + 1)(4x2 – 2x + 1) (2x + 1)(2x2 – 2x + 1)