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valina [46]
3 years ago
10

Which set of measurements forms a right triangle? Use the Pythagorean theorem: a2 + b2 = c2.

Mathematics
1 answer:
user100 [1]3 years ago
4 0

Answer:

A. 15, 20, 25.

Step-by-step explanation:

25^2 = 625

20^2 = 400

15^2 = 225.

Now 625 = 400 + 225 = 625 so it is choice A.

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Please help me with this brainly
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Emily earns $15 for each car she washes. Create an equation to represent the relationship between the numbers of cars washed c,
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3 years ago
A password is 4 characters long and must consist of 3 letters and one number. if letters cannot be repeated and the password mus
cestrela7 [59]

We will see that there are 156,000 different combinations, so the correct option is C.

<h3>How many possibilities are there? </h3>

First, we need to find the selections, here we have:

  • First letter.
  • Second letter.
  • Third letter.
  • Number.

Now we need to find the number of options for each of these selections.

  • First letter. (26 options)
  • Second letter. (25 options, because we can't repeat letters)
  • Third letter. (24 options)
  • Number. (10 options).

We assumed that the number can be any integer from 0 to 9.

The total number of possibilities is equal to the product between the numbers of options, we will have:

P = 26*25*24*10 = 156,000

So, the correct option is C.

IF you want to learn more about combinations.

brainly.com/question/11732255

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4 0
2 years ago
Two bikers, Derek and Tina, start riding from the same location. Derek rides due west for x miles. Tina goes due south and cover
kirza4 [7]

Answer: Tina rides 4 miles and Derek rides 3 miles.

Explanation:

Since we have given that

Distance covered by Derek in west direction be x

Distance covered by Tina in south direction be x+1

Distance between the bikers when they both stop is x+2

Since it forms right triangle, so we will apply "Pythagorus theorem":

H^2=P^2+B^2\\\\(x+2)^2=x^2+(x+1)^2\\\\x^2+4x+4=x^2+x^2+1+2x\\\\x^2+4x+4=2x^2+2x+1\\\\x^2-2x^2+4x-2x+4-1=0\\\\-x^2+2x+3=0\\\\x^2-2x-3=0\\\\x^2-3x+x-3=0\\\\x(x-3)+1(x-3)=0\\\\(x+1)(x-3)=0\\\\x=-1,3

Since distance can't be in negative sign, so we take x=3 miles

Derek rides 3 miles

Tina rides is given by

x+1=3+1=4\ miles

Hence, Tina rides 4 miles and Derek rides 3 miles.

3 0
3 years ago
Read 2 more answers
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