Answer:
49 unit²
Step-by-step explanation:
Right triangle with equal legs given, let the leg be x.
<u>Hypotenuse of isosceles right triangle is </u>
<u>Area of triangle:</u>
<u>Since we have hypotenuse = 14 units:</u>
<u>Then area:</u>
- 1/2x² = 1/2*(14/√2)² = 1/2*14²/2 = 7² = 49 unit²
Explanation:
If your actual answer is very far from your estimate, you probably made a mistake somewhere.
__
<em>Additional comment</em>
50 years ago, when a slide rule was the only available calculation tool, making an estimate of the result was a required part of doing the calculation. Not only were the first one or two significant digits needed, but also the power of 10 that multiplied them. Use of a slide rule required the order of magnitude be computed separately (by hand) from the significant digits of the result.
__
You may also find it useful to estimate the error in your estimate. That is, you may want to know the approximate answer to 2 (or more) significant digits in order to gain confidence that your calculation is correct.
Answer:
wait is that a test if it is cheating
Step-by-step explanation:
well the first one go on the bottom 2 row secound one first row third first row but it is in happpy i am not reall good at math XD third last row forth very happy fifth on unhappy sixth very unhappy seven very unhappy eight on very happy i think i got it i did this before i just don't rembear but i tried
(2p + 7)(3p-9)
2p x 3p= 6p^2
2p x -9= -18p
7 x 3p=21p
7 x -9=-63
6p^2 - 18p + 21p - 63
6p^2 + 3p -63 is the answer.
