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OLga [1]
3 years ago
9

A − 7 = 3 (b+2) pls answer soon

Mathematics
1 answer:
Alexeev081 [22]3 years ago
8 0
I believe the answer is....

For solving for a

a-7= 3(b+2) ———> distribute 3(b+2)
a-7= 3b+6 ———-> add 7 on both sides

a-7= 3b+6
a+7= 3b +7 ———-> the 7’s cancel out so you’re left with....

a = 3b + 13 (That’s your answer)

Hope that helped :3
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3 years ago
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Explain what is wrong with each of the following randomization procedures, and describe how you would do the randomization corre
zlopas [31]

Answer:

Kindly check explanation

Step-by-step explanation:

A.)

The problem with the here is that we might have introduced bias into our sample by failing to randomize the assignment of gender. By pacing the male gender in the treatment group and females into the control group, this might spring up a spurious association in our experiment as a result of a possible confounding variable, gender. Therefore, assignment of subject shouldn't be on the basis of gender.

2.)

Using a coin toss in placing subjects into groups will give a good random assignment, however, since only ten subjects are available and of which 5 will be placed into each group, there is no certainty that there will be equal number of heads and tails during the 10 flips. Alternatively, a random selection of the name of the 10 subjects could be chosen from a raffle.

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8 0
2 years ago
PLEASE HELP, THANK YOU! :)
elena-s [515]

Steps to solve:

-4z + 4 + 12z = 3z + 4 + 5z

~Combine like terms

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0 = 0

All real numbers are solutions.

Set builder notation: {x | R}

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Best of Luck!

8 0
3 years ago
Help me in both please it’s a test and i need help
nataly862011 [7]

1. -2x + 3y + 5

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5 0
2 years ago
HELP PLEASE DUE IN 3 MINUTES
Irina18 [472]

Answer:

30

Step-by-step explanation:

5 0
2 years ago
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