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givi [52]
1 year ago
8

2x + 3 = 4x^2 completing the square

Mathematics
1 answer:
ch4aika [34]1 year ago
6 0

Answer:

\frac{1+\sqrt{13} }{4}, \frac{1-\sqrt{13} }{4}

Step-by-step explanation:

First, make them on one side of the formula in the form of ax^2+bx+c=0 which is 4x^{2} -2x-3=0

Next, insert the corresponding number in the quadratic formula, \frac{-b+\sqrt{b^{2}-4ac } }{2a}  ,\frac{-b-\sqrt{b^{2}-4ac } }{2a} , and the answer can be calculated.

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A recipe that yields 2 loaves of bread
kozerog [31]

Answer:He can make 7.5 loaves i think

Step-by-step explanation:

7 0
2 years ago
Stacie had a meal that cost $36.00. If she tipped the waited 18% of the total bill for the service, How much was the tip?
Dovator [93]

18% = 0.18

Tip = $36.00 x 0.18 = $6.48

Total bill = $36.00 + $6.48 = $42.48

Answer:

Total bill = $42.48

Tip = $6.48

6 0
3 years ago
What is the degree of (3x^2-3)(3x^2+3)
r-ruslan [8.4K]

Answer:

9x^4+3x^2 -6

Step-by-step explanation:

(3x^2-2)(3x^2+3)

expand to remove the bracket

9x^4 + 9x^2 -6x^2 - 6

9x^4 + 3x^2- 6

5 0
3 years ago
The difference between a number squared and 10 is 71 just translate please don't solve.
AnnyKZ [126]

Step-by-step explanation:

Things I notice about this problem:

  • "Difference" indicates subtraction.
  • "Is" means "equals".
  • When a problem simply says "a number," I replace it with a variable.

It is written out like this: x^{2} - 10 = 71.

3 0
3 years ago
The width of a rectangle is 7 less than the length. If the perimeter of the rectangle is 43.6 inches, what is the area of the re
Lera25 [3.4K]

Call the length a, the width b

Perimeter = (a+b) x 2

And since we have (a+b) x 2 = 43.6, a + b = 43.6 : 2 = 21.8

a + b = 21.8
a - b = 7

-> a + b + (a - b) = 28.8
2a = 28.8
a = 14.4
b = 7.4

So, the area of the rectangle is 14.4 x 7.4 = 106.56

8 0
2 years ago
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