The answer would ne answer choice b. I don't know what the last answer choice was though.
Answer:
4 m.
Step-by-step explanation:
Length of ladder, L = 4.50 m
Base of ladder from the wall, B = x
Height of the wall, H = 2x
Using Pythagoras theorem




Height of the wall is equal to 2 x 2 = 4 m.
Answer:
0.1
Step-by-step explanation:
0.3 x 7= 2.1
2.1 - 2= 0.1
Answer:
We call the denominator rational.
Step-by-step explanation:
For example:

It's clear that the denominator is now a rational number, not an irrational one anymore.
The calculator came up with this -23.399156493247038795316239455591