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Phantasy [73]
3 years ago
14

X2+2x-15=0 Find the quadratic formula

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
3 0

Answer:

Step-by-step explanation:

For a quadtratic in the form of

ax^{2} + bx + c = 0

The solutions to this can be found using the quadratic formula:

x = \frac{-b \pm \sqrt{b^{2} - 4ac}}{2a}

For the given equation, a = 1, b = 2, c = -15. Plugging these numbers into the formula will give you the answer.

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Answer:

50 cubic meters

Step-by-step explanation:

5 squared times 6 divided by 3

Formula is Base edge times height divided by 3

7 0
3 years ago
PLS HELP!! WILL GIVE BRAINLIEST!!
docker41 [41]

Answer:

2x

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x+7

Step-by-step explanation:

7 0
3 years ago
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S O L V E<br> (litteraly please im not failing again)
Tanya [424]

Answer:

see explanation

Step-by-step explanation:

Using the rule of exponents./ radicals

a^{\frac{m}{n} } = \sqrt[n]{a^{m} }

Then

4^{\frac{1}{7} } = \sqrt[7]{4}

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7 0
3 years ago
Please help i am rubbish at maths
mars1129 [50]
A) 14:27
B)139 minutes
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8 0
3 years ago
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PLEAS PLEASE PLEASE HELP!!
jekas [21]

Using the given functions, it is found that:

  • Lower total cost at Jump-n-Play: 40, 64.
  • Lower total cost at Bounce house: 28, 8, 30.
  • Same total cost at both locations: 32.

<h3>What are the cost functions?</h3>

For n visits to Jump-n-play, the cost is:

J(n) = 189 + 3n.

For n visits to Bounce Word, the cost is:

B(n) = 125 + 5n.

Comparing them, we have that:

J(n) < B(n)

189 + 3n < 125 + 5n

64 < 2n

n > 32

Hence:

  • For less than 32 visits, the cost at Bounce World is lower.
  • For more than 32 visits, the cost at Jump-n-play is lower.

Hence:

  • Lower total cost at Jump-n-Play: 40, 64.
  • Lower total cost at Bounce house: 28, 8, 30.
  • Same total cost at both locations: 32.

More can be learned about functions at brainly.com/question/25537936

4 0
2 years ago
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