C(12/15) because the other 3 all equal 0.666666666666667 but 12/15 equals 0.8
Answer:
Step-by-step explanation:
Solution by completing the square for:
x2−12x+9=0
Keep x terms on the left and move
the constant to the right side
by subtracting it on both sides
x2−12x=−9
Take half of the x term and square it
[−12⋅1/2]^2=36
then add the result to both sides
x^2−12x+36=−9+36
Rewrite the perfect square on the left
(x−6)^2=−9+36
and combine terms on the right
(x−6)^2=27
Take the square root of both sides
x−6=±27−−√
Simplify the Radical term (1):
x−6=±3–√3
Isolate the x on the left side and
solve for x (1)
x=6±3–√3
therefore (2)
x=6+3–√3
x=6−3–√3
which becomes
x=11.1962
x=0.803848
Convert foot to inches:
1 foot = 12 inches
23 feet ⇒ 23 feet × 12 inches/ft = 276 inches
Divide:
276 ÷ 9 = 30 pieces with remainder
Remainder = 276 - (9×30) ⇒ 276 - 270 = 6
ANSWER: There will be 6 inches long remaining in length after cutting the string into 30 pieces equal lenght of 9 inches each.
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➷ Tens are 'whole' and tenths are 'decimal'
[i'll give an example so it makes more sense]
1846.97
In this number, the tens value would be '4' or forty
The tenths value would be '9' or 9 tenths (0.9)
Any further queries, feel free to ask me.
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➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
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