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Elodia [21]
3 years ago
5

How would I solve this?

Mathematics
1 answer:
trasher [3.6K]3 years ago
8 0

You had the right idea using the Pythagorean theorem to solve for b.

Problem is for that triangle to work, the 5 and the 2√2 would have to switch places. The length of a leg cannot be larger than the length of the hypotenuse for it to truly be a right triangle.

Pythagorean theorem only works for the right triangles. Only way to "solve this problem would be to bring in complex numbers.

5² + b² = (2√2)²

25 + b² = 2²(√2)²

25 + b² = 4(2)

25 + b² = 8

b² = 8 - 25

b² = - 17

b = √-17

b= (√17i)

Then the problem with THIS is a measurement/distance cannot be negative... which goes against exactly what that complex number i is.

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How to do the work.
gulaghasi [49]
U have to subtract the 2 numbers. 
The bigger number is 1,787 * 10^9
the smaller is 8,867*10^8

Now convert the bigger to the same power of 10
1,787 * 10^9 = 17,87 * 10^8

17,87 * 10^8 - 8,867*10^8 = 9,003 * 10^8
5 0
3 years ago
A 76 foot piece of rope is cut into three pieces where one piece is three times longer than the other two equal pieces. How long
jonny [76]
Let the length of one of the shorter pieces be \ell. Then, we know that two of the pieces are that length, and the third piece is 3 \ell. Since these are all pieces of a rope, all we need to do to figure out the lengths is add all those together, solve for \ell, and then plug that back in to the desired lengths:

3 \ell + \ell + \ell = 76 ft.
5 \ell = 76 ft.
\ell = 15.2 ft.

Shorter pieces: \ell = \bf 15.2 ft.
Longer piece: 3 \ell = \bf 45.6 ft.
4 0
4 years ago
X² - x - 6 = 0<br><br> Solutions?
Ira Lisetskai [31]
Factors of -6 that add up to -1:

(x - 3)(x + 2) 

Set them to 0 and solve for x

<span>x = 3 </span>

<span>x = -2</span>
5 0
3 years ago
In a lab experiment, 5400 bacteria are placed in a petri dish. The conditions are such
ser-zykov [4K]

Answer:

it’s 102747.494736, estimate is 102747

Step-by-step explanation:

6 0
3 years ago
19. Select other ways to write 50,897. Mark all that apply.
sp2606 [1]

Answer:

Step-by-step explanation:50,897 is in standard form.

Expanded form is adding all your place values which is 50,000+800+90+7. There was a 0 in the thousand place so you do not add anything for that place value.

So (5×10,000) + (8×100) +(9×10)+(7×1) which is each number times it place value then add them all up.

Written form would be fifty thousand, eight hundred and ninety seven. So your answer is A, B, D

8 0
3 years ago
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