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Answers

Answer 1

Answer: I think it should be c

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HELP ILL GIVE BRAINLIESTTwenty students in Class A and 20 students in Class B were asked how many hours they took to prepare for an exam. The data sets represent their answers.Class A: {2, 5, 7, 6, 4, 3, 8, 7, 4, 5, 7, 6, 3, 5, 4, 2, 4, 6, 3, 5}Class B: {3, 7, 6, 4, 3, 2, 4, 5, 6, 7, 2, 2, 2, 3, 4, 5, 2, 2, 5, 6}Which statement is true for the data sets?A. The mean study time of students in Class A is less than students in Class B.B. The mean study time of students in Class B is less than students in Class A.C. The median study time of students in Class B is greater than students in Class A.D. The range of study time of students in Class A is less than students in Class B.E. The mean and median study time of students in Class A and Class B is equal.

Explain how you solve this: -7 = -1 + x/3

Answers

Answer:

-18 =x

Step-by-step explanation:

-7 = -1 + x/3

Add 1 to each side

-7+1 = -1+1 + x/3

-6 = x/3

Multiply each side by 3

-6*3 = x/3*3

-18 =x

What is the prime factorization of 1,260A. 2x2x3x3x5x7b. 2x3x5x7c. 4x5x7x9d. 2x3x5x6x7

Answers

to find out the prime factorization of 1260 you need to "decompose" this number in prime numbers
first step i will divide the 1260 by numbers that I know it is divisible by (ends in 0 so it will be 10, sum of the digits is 9 so will be divisible by 3)
1260=126*10=9*14*10=3*3*2*7*2*5
i need to write the prime numbers in order
1260=2*2*3*3*5*7 is choice A

Answer:

Let’s count every 4 as 2^2, and put the negative in front of the parentheses. The result would be -(2^2*2^2*2^2*2^2*2^1*2^2*2^2*2^2*2^2*2^2*2^2*2^2*2^1), or -2^(2+2+2+2+1+2+2+2+2+2+2+2+1), or -2^12, which would be -4096.

How many possible outcomes are there when flipping a coin 7 times?

Answers

It's simply 1/2 x 1/2 x 1/2 x 1/2 x 1/2 x 1/2 x 1/2 = 1/128 so there are 128 different outcomes!

What pairs of polygons are congruent

Answers

They are congruent because when they have the same number of sides, and all corresponding sides and Interior angles are congruent. They can have the same size and shape, but on image can be mirrored or rotated and it always remain congruent :)

For brainiest:):):):):):)