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gulaghasi [49]
3 years ago
9

How do I solve this??

Mathematics
1 answer:
Helga [31]3 years ago
6 0
You want to use the Pythagorean Theorem: a squared+b squared=c squared


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HOW DO I SOLVE THIS PLEASE HELP
malfutka [58]

Answer:

  x = 15

Step-by-step explanation:

We assume you want to find the value of x.

Know (or prove) that in this geometry, all of the right triangles are similar. That means the ratios of corresponding sides are proportional.

  short side / hypotenuse = 9/x = x/25

  x^2 = (9)(25) . . . . . . . . . . multiply by 25x ("cross multiply")

  x = √((9)(25)) = (3)(5) . . . take the square root

  x = 15

3 0
3 years ago
Which of these expressions or phrases can be used to represent model choose all the correct answers
katrin [286]

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

tinyurl.com/wtjfavyw

3 0
3 years ago
What does (x^2 - 3x + 1) + (2x^2 + 5x + 7) equal?
alisha [4.7K]

Answer:

3x^2+2x+8

Step-by-step explanation:

1. x^2+2x^2=3x^2

2. -3x+5x=2x

3.1+7=8

5 0
3 years ago
Read 2 more answers
Please send a picture or tell me what to draw to show because I need to show my work too. Thanks
oee [108]

Answer: 81 people attended

Explanation:

Number of adults = 988 / 26 = 38

Number of students = 731 / 17 = 43

Total attendees: 38 + 43 = 81

5 0
3 years ago
7- square root of 3i
r-ruslan [8.4K]

Step-by-step explanation:

Any complex number is of the form: a + bi where a is real part and B is imaginary part.

Therefore, in given complex number: 7- \sqrt {3}i

7 is real part.

\sqrt {3} is imaginary part.

Hence, first two options are correct.

Last two options are incorrect because of the following reasons:

- \sqrt {3} is coefficient of i & not 7- \sqrt {3}

Given number is a difference of a real number and imaginary number & not a sum of a real number and imaginary number.

5 0
4 years ago
Read 2 more answers
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