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Pani-rosa [81]
2 years ago
14

Harriet thinks of a number.

Mathematics
2 answers:
umka2103 [35]2 years ago
6 0
Let the original number be x
X^2 + 11 = 36
Subtract 11
X^2 = 25
Square root both
X = 5
Solution: her original number is 5
makvit [3.9K]2 years ago
3 0

Answer:

5

Step-by-step explanation:

36-11=25

the square root of 25 is 5. you just have to do the problem backwards

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Step-by-step explanation:

4

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Sum of two numbers is 84. If one of the numbers exceeds the other by 12, the numbers are
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Answer:

54 and 30

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84÷2=42-12=30

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5 0
3 years ago
300 juniors at Central High School took the ACT last year. The scores were distributed normally with a mean of 24 and a standard
Usimov [2.4K]

Answer:

150 students

Step-by-step explanation:

According to statement we have the following information

number of juniors=n=300

mean score=24

standard deviation score=4

The number of students that score above 24 is determined by

Number of students score above 24=number of juniors* P(student score above 24)

P(student score above 24)=P(x>24)=P(x-mean/sd>24-24/4)=P(z>0)=0.5.

Students score above 24=np=300*0.5=150

Hence there are 150 students scored above 24.

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3 years ago
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Please add the image to solve. Thank you.

4 0
2 years ago
Evaluate a + b to the 2nd power for a = 2 and b = 3
jarptica [38.1K]

Answer:

25

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You add 2+3 and get 5. Then you square it to get 25.

4 0
3 years ago
Read 2 more answers
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