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Soloha48 [4]
2 years ago
9

Solve the equation 3x²- 18x + 7=0 using the quadratic formula.​

Mathematics
1 answer:
FromTheMoon [43]2 years ago
8 0

18² - 4 * 3 * 7 =240

x1 = (-b-root of 240)/2a = ............

x2 =(-b + root of 240)/2a = ........

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Claire is putting up a fence around her rectangular garden. The length is four less than double the width. The perimeter is 22 f
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Answer:

The dimensions are 6 by 5 feet.

Length = 6 feet.

Width = 5 feet.

Step-by-step explanation:

Let the length = L

Let the width = W

Perimeter of a rectangle = 2L + 2W

Translating the word problem into an algebraic equation, we have;

L = 2W - 4 ........equation 1

22 = 2L + 2W .......equation 2

Substituting the value of "L" into equation 2, we have;

22 = 2(2W - 4) + 2W

22 = 4W - 8 + 2W

22 + 8 = 6W

30 = 6W

W = 30/6

Width, W = 5 feet.

To find the length, L

Substituting the value of "W" into equation 1, we have;

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5 0
2 years ago
Hey, how do I apply the digital root method to division? Thanks.
REY [17]

Step-by-step explanation:

The digital root of a number is the single digit that you get by adding all of the digits of the original number together. If the result of that is multiple digits, you add those digits together, repeating the process until you get a single digit. That digit is the digital root of the original number.

example given

257520643

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16

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5 0
3 years ago
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sveta [45]
\dfrac{\$18.45}{n \text { gallon}}  =  \dfrac{\$3.60}{7.5 \text { gallon}}

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3.60n = 138.375

Find n
n = 138.375\div 360

Answer
n = 0.38 \text { (nearest hundredth)}
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2 years ago
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Would be 24% fefenhite
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3 years ago
Find the probability of this event Enter the answer as a fraction in simplest form, as a decimal, and as a
Step2247 [10]

Answer:

12+12+4+6+26=50

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