I need help so what is 11 x11
2 answers:
Answer:
121
Step-by-step explanation:
There are two ways to doing this.
1. multiplying double digits using the traditional algorithm
- line up all the digits (step1)
- Multiply by the Ones Digit (step2)
- Add a Zero Place Holder (step3)
- Multiply by the Tens Digit (step4)
- Add the Two Answer Rows Together (step5)
- answer
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Given:
The base of 40-foot ladder is 8 feet from the wall.
To find:
How high is the ladder on the wall (round to the nearest foot).
Solution:
Ladder makes a right angle triangle with wall and ground.
We have,
Length of ladder (hypotenuse)= 40 foot
Base = 8 foot
We need to find the perpendicular to get the height of the ladder on the wall.
Let h be the height of the ladder on the wall.
According to the Pythagoras theorem,
Taking square root on both sides.
Height cannot be negative. Round to the nearest foot.
Therefore, the height of the ladder on the wall is 39 foot.