Answer:
c = 31.5
Step-by-step explanation:
Given c varies directly as then the equation relating them is
c = k ← k is the constant of variation
To find k use the condition c = 14 when d = 64, then
14 = k × = 8k ( divide both sides by 8 )
1.75 = k
c = 1.75 ← equation of variation
When d = 324 , then
c = 1.75 × = 1.75 × 18 = 31.5
This is basic Pythagoras. Remember A squared + B squared = C squared?
reverse it and u get c squared - a squared = b squared.
Apply to ur equation. 14.7 squared - 11.9 squared = 216.09 - 141.61 = 74.48 squared. find the square root, 8.630179604156567, and round it to the nearest 10th. That will equal 8.6
Hope it helps!
Puffin.
<u>Seven</u> is at most <em>the quotient of a number d and -5</em>
<u>7</u>≤<em>d/-5</em>
Seven relates to: 7
Is at the most means the highest it can go is a certain number but it can also go lower: ≤
The quotient of a number d and -5 means: d/-5
Full answer: 7≤d/-5