Guess and Find Out
1. How long is the thread in a reel?
2. How long is the string of a kite reel? Can it be more than a
kilometre long?
3. If a handkerchief is made out of a single thread, how long
would that thread be?
Children will get a good idea of 1 kilometre distance if it is possible to take them for a 1 km
walk, preferably along a straight path.
21
Answers
Answer:
Mitigation is the effort to reduce loss of life and property by lessening the impact of disasters. In order for mitigation to be effective we need to take action now—before the next disaster—to reduce human and financial consequences later (analyzing risk, reducing risk, and insuring against risk).tex] \begin{lgathered}\tt \implies \: (25 - x) {}^{2} = (x) {}^{2} + (5) {}^{2} \\ \tt \implies625 - 50 + x {}^{2} = x {}^{2} + 25 \\ \tt \implies - 50 Find a quadratic polynomial with zeroes 2 and 3. ________________________________________ #No Spam! ★ Find a quadratic polynomial with zeroes 2 and 3. ________________________________________ #No Spam!
Step-by-step explanation:
given,
Zeroes are 1/2+2√3 and 1/2-2√3
sum of zeroes = 1/2+2√3 + 1/2-2√3
= 1/2 + 1/2
= 1
product of zeroes = 1/2+2√3 x 1/2-2√3
= [ 1/2 ] ² - [ 2√3 ]²
= 1/4 - 12
= 1/4 - 48 / 4
= -47 /4
Quadratic equation
x² - [ sum of zeroes ]x + product of zeroes
=x² - x + -47/4............