3 years ago

10 Use the quadratic formula to solve the following. x^2+ 4x - 3=0

Mathematics

1 answer:

fenix001 [56]3 years ago

4 0

Answer: $x=-2+or-\sqrt{7}$

Step-by-step explanation:

$x^{2} +4x-3=0$

$x=\frac{-b+or-\sqrt{b^{2} -4ac} }{2a}$

$x=\frac{-4 + or - \sqrt{4^{2}-4(1)(-3) } }{2(1)\\}\\x= -4+or-\sqrt{16+12}/2\\x=-4+or-\sqrt{28} /2\\x=-4+or-\sqrt{4*7} /2\\x=-4+or- 2\sqrt{7} /2\\x=-2+or-\sqrt{7}$

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Some investments in the stock market have earned 10% annually. At this rate, earning can be found using the formula A=p(1.10)n,

Harlamova29_29 [7]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The answer to the above question is C which is $8,339.88. below is the solution:

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<span>1500(1.10)^18 = 8339.88</span>

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3 years ago

two pages that are back to back in a text have 201as the sum of their page numbers what are the page numbers.

REY [17]

Answer:

Pages 100 and 101

Step-by-step explanation:

Round 201 to 200 (to make it easier).

Divide 200 by 2, because it is 2 pages.

You are left with 100.

100 is one of the pages, but because you rounded down 1 number, the other number must be 101, because the pages are back to back.

I hope this made sense, this is just how I figured it out. :)