Answer:
300cm
Step-by-step explanation:
scale 1:200 means 1cm on drawing represent 200cm on ground so 15cm will be 15×200 which is 3000cm
For this case we have the following polynomial:

To solve the problem we apply the following steps:
1) We make a change of variables u = x ^ 2
2) We rewrite the polynomial
3) Solve the quadratic equation using the formula for the quadratic equation
4) We return the change and find four roots
Answer:
See attached image for procedure and solution
The answer is a happy to help
Answer:
y=x^2
Step-by-step explanation:
Hello,
Shall we begin?
= 2 + 2×9÷3+10-45+21
= 2 + 18 : 3 + 10 - 45 + 21
= 2 + 6 + 10 - 45 + 21
= - 6
Answers: - 6