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mihalych1998 [28]
3 years ago
14

2x^2 - 3x - 15 = 5 using quadratic equation

Mathematics
1 answer:
Damm [24]3 years ago
4 0

Answer:

x= 4, 2.5(or 5/2)

Step-by-step explanation:

2x²-3x-15=5

           -5   -5

2x²-3x-20=0

plug into quadratic equation

(3+13)/4           (3-13)/4

16/4=4             10/4=2.5

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A jar of peanut butter and a jar of jam cost $10.20 in total. the jar of peanut butter costs $10.00 more than the jar of jam. ho
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Well this is pretty simple. So the first thought is that the peanut butter would be 10$ and the jam would be 0.20$, however, the peanut butter would not be 10$ more. Instead, subtract the 10$ from the total, which gives you 0.20$, and then divide that by two. Now you have 0.10$ for each, along with another 10$ for the peanut butter. The peanut butter would be $10.10, and the jam would be 0.10$ (that's pretty cheap!).
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3 years ago
What is a supplementary angle??
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3 years ago
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Given the points (2, 4) & (-1,-5), what is the equation of the line?
baherus [9]

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Step-by-step explanation:

8 0
3 years ago
Write in the product of 2 factors ab-ac
kicyunya [14]
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6 0
3 years ago
Evaulate 10^2 + 6 multiplied by 7 + 8
Alinara [238K]

Evaluating 10^2 + 6 \,\,multiplied\,\, by\,\, 7 + 8 we get 1590

Step-by-step explanation:

We need to evaluate 10^2 + 6 \,\,multiplied\,\, by\,\, 7 + 8

Solving:

10^2 + 6 \,\,multiplied\,\, by\,\, 7 + 8\\=(10^2+6)\times(7+8)\\=(100+6)\times(15)\\=106\times15\\=1590

So, evaluating 10^2 + 6 \,\,multiplied\,\, by\,\, 7 + 8 we get 1590

Keywords: Solving the expressions

Learn more about Solving the expressions at:

  • brainly.com/question/5496711
  • brainly.com/question/2369634
  • brainly.com/question/5639299

#learnwithBrainly

5 0
3 years ago
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