HELP ME IMMEDIATELY WITH THIS PROBLEM PLEASE

2 answers:

7 0

Answer:

x= 7, -1

Step-by-step explanation:

took the test :)

7 0

Answer:

$x=3 -\sqrt{2}\\x=3 + \sqrt{2}$

Step-by-step explanation:

$x=\frac{\sqrt{} 36-28}{2} \\x=\frac{6+-\sqrt{8} }{2} \\x=\frac{6+-2\sqrt{2} }{2} \\$

Then you simplify both the negative and the positive expressions

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uranmaximum [27]

Answer: 2.5%

Step-by-step explanation:

Mean score = 65

Standard deviation = 5

Score (x) = >75

Z-score = [(score - mean) ÷ standard deviation]

Z - score = [(75 - 65) ÷ 5]

Z - score = 10 ÷ 5 = 2

P(score higher than 75) = 100 - 95 = 5/2 = 2.5%

4 0

2 years ago

Volgvan

Answer:
david finished 24 problems more than ameetha
Step-by-step explanation:
problems finished by ameetha = 12 problems
problems finished by ameetha = 12 problemsproblems finished by David = 3 times more than ameethas problem = 3*12 = 36
problems finished by ameetha = 12 problemsproblems finished by David = 3 times more than ameethas problem = 3*12 = 36the problems finished by David more than ameetha =
problems finished by ameetha = 12 problemsproblems finished by David = 3 times more than ameethas problem = 3*12 = 36the problems finished by David more than ameetha =36-12= 24
problems finished by ameetha = 12 problemsproblems finished by David = 3 times more than ameethas problem = 3*12 = 36the problems finished by David more than ameetha =36-12= 24 so David finished 24 problems more than ameetha