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Andreas93 [3]
3 years ago
13

Hall and Mindy are playing a guessing game. Hall tells Mindy: ""The difference between 17 and the square root of my mystery numb

er is 5"". What are two possible numbers that Hall could be thinking of?
Mathematics
1 answer:
cestrela7 [59]3 years ago
5 0

Answer:

The possible number that Hall could be thinking of is 144.

Step-by-step explanation:

Difference between 17 and the square root of my mystery number

This is represented by:

17 - \sqrt{x}

is 5

Then:

17 - \sqrt{x} = 5

What are two possible numbers that Hall could be thinking of?

We have to solve the equation, for x. So

17 - \sqrt{x} = 5

\sqrt{x} = 12

(\sqrt{x})^2 = (12)^2

x = 144

The possible number that Hall could be thinking of is 144.

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4 0
3 years ago
Help me :( please help me
Katena32 [7]

Answer:

22.84, 5.83

Step-by-step explanation:

Pythagoras theorem states that: a^2+b^2=c^2

So, for red triangle, it will be: 9^2+21^2=b^2

81+441=b^2

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square root of 522=b

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For purple one,

3^2+5^2=a^2

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7 0
2 years ago
For the data set 2.5, 6.5, 9, 19, 20, 2.5. What is the mean?
Ahat [919]

Answer:

9.9166667

Step-by-step explanation:

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3 0
3 years ago
−7y−4x=1 ​7y−2x=53 Solve the system of equations​​
Reptile [31]
-7y-4x=17y-2x=53
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You would have to solve one at a time.
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3 0
4 years ago
I don’t understand these 3 questions and I need help.
rjkz [21]
Not sure about the first one but the second one is option c (or -3). You just have to factor and find the solutions (so it would be -7 and 4 and then u just add them)

For question 39 the answer is c
6 0
3 years ago
Read 2 more answers
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