HELP PLEASE I CANNOT FAIL PLEASE!!!!!!!
1 answer:
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Answer:
- 111 in
Step-by-step explanation:
Let the remainder of the diameter is x.
<u>Use the intersecting chords theorem:</u>
- 6*x = (72/2)*(72/2)
- 6x = 1296
- x = 216
<u>The diameter:</u>
- d = 6 + x = 6 + 216 = 222 in
<u>The radius:</u>
- r = 222/2 = 111 in
Answer:
see explanation
Step-by-step explanation:
Given that z² is directly proportional to w then the equation relating them is
z² = kw ← k is the constant of proportion
To find k use the condition z = 4 when w = 8, thus
4² = 8k
16 = 8k ( divide both sides by 8 )
2 = k
(i)
z² = 2w ← equation of proportion
(ii)
When w = 18, then
z² = 2 × 18 = 36 ( take the square root of both sides )
z = = 6
(iii)
When z = 5 , then
5² = 2w
25 = 2w ( divide both sides by 2 )
w = 12.5