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alexandr1967 [171]
3 years ago
12

Use the quadratic formula to find the solutions to the equation x^2-3x+1=0

Mathematics
1 answer:
Gnom [1K]3 years ago
4 0

Answer:

x_{1}=\frac{+3+\sqrt{5} }{2}\\\\x_{2}=\frac{+3-\sqrt{5} }{2}

Step-by-step explanation:

Using:

x=\frac{-b+-\sqrt{b^{2}-4*a*c} }{2*a}

we will have two solutions.

x^2-3x+1=0

So, a=1   b=-3  c=1

x_{1}=\frac{+3+\sqrt{-3^{2}-4*1*1} }{2*1}\\\\x_{2}=\frac{+3-\sqrt{-3^{2}-4*1*1} }{2*1}

We have two solutions:

x_{1}=\frac{+3+\sqrt{5} }{2}\\\\x_{2}=\frac{+3-\sqrt{5} }{2}

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Hoochie [10]
81.25 / 125 = 0.65
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5 0
3 years ago
A tal company has chairs and tables for rent. The total cost to rent 3 chairs and 2 tables is $22. The total cost to rent 5 chai
den301095 [7]

Answer:

$1.5 and $8.75

Step-by-step explanation:

Given data

let tables be x and chairs be y

The total cost to rent 3 chairs and 2 tables is $22

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The total cost to rent 5 chairs and 6 tables is $60

so

5x+6y=60---------2

the system of equation is

3x+2y=22----------1X 6

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- 10x+12y=120

8x+0y= 12

8x= 12

divide both sides by 8

x= 12/8

x=$1.5

put x= 1.5 in 2

5(1.5)+6y=60---------2

7.5+6y=60

6y=60-7.5

6y=52.5

divide both sides by 6

y= 52.5/6

y=$8.75

7 0
3 years ago
he puppy weighed 2 pounds when it was born. He has gained weight, but still weighs less than 11 pounds. How much weight could he
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Answer:

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Step-by-step explanation:

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4 0
2 years ago
Please solve quickly ​
ValentinkaMS [17]

Answer:

62.8 inches

Step-by-step explanation:

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6 0
1 year ago
Given the following triangle, solve for angle X
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Cos(Angle) = Adjacent leg / Hypotenuse

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X = arccos(3.5/4.6)

X = 40.46 degrees.

8 0
3 years ago
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