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My name is Ann [436]
3 years ago
15

Can I get some help

Mathematics
1 answer:
ra1l [238]3 years ago
5 0

Answer:

The answer to your question is below

Step-by-step explanation:

The answers for 1, 3 and 4 are given in decimals and roots.

1)  \sqrt{2^{2} - 4(3)(-6)}

    \sqrt{4 + 72}

    \sqrt{76}

    2\sqrt{19} = 8.71

2) \sqrt{1^{2} -4(1)(-6)}

    \sqrt{1 + 24}

    \sqrt{25}

     5

3) \sqrt{1^{2} - 4(1)(-11)}

   \sqrt{1 + 44}

    \sqrt{45}

     3\sqrt{5} = 6.7

4) \sqrt{8^{2} -4(5)(2)}

    \sqrt{64 - 40}

    \sqrt{24}

     2\sqrt{6} = 4.89

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Point R is on line segment QS. Given QS= 5x-2, QR= 3x-6, and RS=4x-2, determine the numerical length of RS.
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Answer:

The numerical length of RS is 10 units

Step-by-step explanation:

* <em>Lets explain How to solve the problem</em>

- Point R is on line segment QS

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- The length of QR is (3x - 6)

- The length of RS is (4x - 2)

- <em>The length of QS is the sum of the lengths of QR and RS</em>

∵ QS = QR + RS

∴ (5x - 2) = (3x - 6) + (4x - 2)

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- <em>To find the length of RS substitute the value of x in its expression</em>

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3 years ago
Four brothers each bought two hot dogs and a bag of chips at the football concession stand. If the bag of chips was 1.25, and th
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Answer:

  $1.65

Step-by-step explanation:

If h is the price of a hot dog, then the total bill was ...

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The price of one hot dog was $1.65.

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Assume the random variable x is normally distributed with mean μ = 80 and standard deviation σ = 4. Find the indicated probabili
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Answer:

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Step-by-step explanation:

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