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ioda
3 years ago
9

PLEASE HELP ASAP- solve the equation : 9x^2+64=0 . i need work to be shown for credit ....

Mathematics
1 answer:
k0ka [10]3 years ago
6 0
In this quadratic equation a=9 b=0 c=64, you could use the Quadratic Formula:
x = [-b +-sqrt (b^2 -4*a*c)] / 2*a
x = 0 +- sqrt (0 -4*9*64) / 2*9
x = +- sqrt(-2,304) / 18

x = + 48 i / 18
x = -48 i /18

Where "i" is the square root of minus 1.


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Juan paid 59.99 tor a jacket that originially sold for 85.50. about what percent of the originial price did he pay for the jacke
77julia77 [94]

Juan paid 70.16 % of the original price of the jacket.

Step-by-step explanation:

Step 1:

Given details, Original Selling Price of the jacket = 85.50

New Selling Price of the jacket = 59.99

Step 2:

To determine what percentage of the old price is the new price, we have to use percentage calculation.

x/100\times 85.50 = 59.99

Step 3:

Substitute in the formula, the given values

x = (59.99/85.50) \times 100

  = (0.7016) \times 100

  = 70.16

Therefore, percentage paid is 70.16%

8 0
3 years ago
Find the values for a, b, and c for this quadratic equation. -3x^2 - 5x = 1​
Ne4ueva [31]

Answer:

a= -3, b= -5, c= -1

Step-by-step explanation:

Quadratic Equation: ax^2+bx+c=0

Hope this helps!

4 0
2 years ago
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An employee's hourly raise went up from $10 per hour to $12 per hour. What is the rate of increase?
vagabundo [1.1K]
It’s $2 I think lol, since 12-10=2
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3 years ago
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A particular number was divided by 6 qnd then 5 was taken away from the quotient. Finally, the difference was mutiplird by 2. Gi
Nitella [24]
N is the number
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3 years ago
((MULTIPLE CHOICE ))
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Answer:

Neither.

Step-by-step explanation:

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3 years ago
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