9x²-0x-4
=9x²-4
=(3x-2)(3x+2) is the factor form of 9x²-0x-4
Solve for x:
3x-2=0
Add 2 to each side
3x-2+2=0+2
3x=2
Divided 3 to each side
3x/3=2/3
x=2/3
Or
3x+2=0
Subtract 2 to each side
3x+2-2=0-2
3x=-2
Divided 3 to each side
3x/3=-2/3
x=-2/3. Hope it help!
Answer:
C. 18π
Step-by-step explanation:
s = r*θ = 20*(9π/10) = 18π
s - arc length
θ - angle in radians
r - radius
<h3>Answer:</h3>
33
<h3>Explanation:</h3>
The repeating digits of the sum will have a cycle of length 6 (the LCM of 2 and 3). There will be 3 cycles of the 2-digit repeat, and 2 cycles of the 3-digit repeat.
The sum of digits of the cycle of interest is the sum of the digits in 3 cycles of "12" and 2 cycles of "345", thus 3·(1+2) +2(3+4+5) = 9+24 = 33.
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<em>Another approach</em>
You can look at the sum on a per-digit basis. The 2-digit repeat {12} has a sum of 1+2=3, or 3/2 on a per-digit basis. The 3-digit repeat {345} has a sum of 12, or 12/3=4 on a per-digit basis. The sum of the two repeating decimals will have a sum per digit of 3/2 + 4 = 5 1/2. The 6 repeating digits will then have a sum of 6×(5 1/2) = 33.
Answer: 45%
Step-by-step explanation:
Discount = original price - selling price
= $9.20 - $5.06
Discount = $4.14
Discount Percent = discount x 100 / original price
= $4.14 x 100 / $9.20
= $414 / $9.20
Therefore,
Discount Percent = 45%
I hope it helps you.
Please Mark this Answer as Brainliest A
Step-by-step explanation: