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wolverine [178]
3 years ago
12

What are the solutions of x2 = 8 - 5x?

Mathematics
1 answer:
jonny [76]3 years ago
5 0

Answer:

That can be re-written:

x^2 + 5x -8 = 0

We use the Quadratic Formula

a=1

b = 5

c = -8

x = [-b +- sq root (b^2 - 4ac) ] / 2a

x = [-5 +- sq root (25 - - 32)] / 2

x1 = [-5 + sq root (57)] / 2

x1 = 1.27491722

x2 = [-5 - sq root (57)] / 2

x2 = -6.2749172176

Step-by-step explanation:

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A square parking lot has an area of 12,996 square yards. a. What is the length of one side of the parking lot? b. How many yards
jenyasd209 [6]

Answer:

114 yards

456 yards

Step-by-step explanation:

Given that:

Area of square parking lot = 12,996 square yards

The lenght of one side of the parking lot :

Area of a square = a² ; a = side length

Hence ;

12996 = a²

√12996 = a

114 = a

Hence, length of one side = 114 yards

Yards of fence needed to enclose parking lot :

Perimeter of a square = 4a ; a = side length

Perimeter = 4(114)

Perimeter = 456 yards

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2 years ago
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8 0
2 years ago
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IgorLugansk [536]

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Step-by-step explanation:

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3 years ago
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n200080 [17]

Answer:

Hope this helps

Step-by-step explanation:

3. Minor arc, 44°

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7 0
3 years ago
Grade 6 students sold 318 tickets for a school pay. The number of adult tickets was six
9966 [12]
Total: 318
Student tickets: x
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8 0
3 years ago
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