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NARA [144]
3 years ago
15

I'm confused on how to find x​

Mathematics
1 answer:
azamat3 years ago
7 0

Answer:

x = 2

Step-by-step explanation:

Since this is a 45-45-90 triangle, the 2 legs will be the same, meaning that y will also be \sqrt2.

We can then solve for x using the Pythagorean theorem:

\sqrt2^2+\sqrt2^2=x^2\\2+2=x^2\\4=x^2\\x=2

Or, we could use a quicker approach: if the triangle is a 45-45-90 triangle, the hypotenuse will be \sqrt2 times the length of 1 leg. It essentially does the same thing; it's just faster so you could save time on tests.

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Find all Pythagorean triplets of 8.
givi [52]

Answer:

Step-by-step explanation:

There are two Pythagorean Triples containing 8:

6^2+8^2=10^2

8^2+15^2=17^2

4 0
3 years ago
When asked to find a number one-tenth as large as another number, what operation would you use? What about when asked to find a
kherson [118]

Apply division by 10 when one tenth of a number is required and apply multiplication by 10 when 10 times of a number is required.

<u>Solution:</u>

Need to determine what operation is required to get one-tenth of a number and 10 times of a number

To get one tenth of a number, divide the number by 10.

For example to get one – tenth of 100, divide it by 10, we get 10 as a result.

\frac{1}{10} \times 100 = 10

To get ten times of a number, multiply the number by 10

For example 10 times of 10 = 10 x 10 = 100

Hence apply division by 10 when one tenth of a number is required and apply multiplication by 10 when 10 times of a number is required.

6 0
3 years ago
How do I abbreviate 78 degrees Celsius
lorasvet [3.4K]
Well as far as abbreviation I would put 78°C
5 0
3 years ago
Is 5/18 a rational number ?
pentagon [3]

Answer:

5/18 is a rational number because a rational number is any integer,fraction terminating decimal,or repeating decimal.

4 0
3 years ago
Solve for x. <br><br> Please help !
Ne4ueva [31]

Answer:

  1. x = 37 1/2
  2. x = 2

Step-by-step explanation:

Parallel lines divide transversals proportionally. I like to write the proportions so the variable is in the numerator. Then the solution is obtained by multiplying by the denominator of the variable term.

1. x/20 = (46 -16)/16

  x = 20(30/16)

  x = 37.5

__

2. (x +4)/13.5 = 4/9

  x +4 = 13.5(4/9) = 6

  x = 6 -4

  x = 2

7 0
4 years ago
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