Answer:
The height is 14.3 km
Step-by-step explanation:
Given
--- angle of elevation
Required
Determine the height above the ground
The question is illustrated using the attached image.
To calculate the required height, we make use of:
Where AB represents the height and BC, the distance.
So:
Make AB the subject
--- approximated
The decimal point should be moved 4 places to the right
Case 1: Steps when Adding Integers with the Same Sign
Step 1: Take the absolute value of each number.
Step 2: Add the absolute values of the numbers.
Step 3: Keep the same sign.
Case 2: Steps when Adding Integers with Different Signs
Step 1: Take the absolute value of each number.
Step 2: Subtract the number with a smaller absolute value from the number with bigger or larger absolute value.
Step 3: Copy the sign of the number with the bigger or larger absolute value.
21
Turn 75%into a decimal 0.75 than multiply that by 28
Answer:
30% discount.
Step-by-step explanation:
