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Alex73 [517]
3 years ago
10

Worth 25 points, giving brainiest to a quick and good answer.

Mathematics
1 answer:
vredina [299]3 years ago
7 0

Answer:


Step-by-step explanation:

Note that the quadratic formula has that "plus or minus" due to our taking the square root of some quantity.  No square root is involved in the two formulas you've posed.

I have two suggestions here:

1) Write " (x plus or minus y)^2 = x^ plus or minus 2 times xy + y^2 "  Note that a + on the left side corresponds to a + on the right side, and same with - .

2) Memorize these two formulas, which in most algebra textbooks you'll find in the section "special products and factoring."


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To find the fraction of oranges we need the total number of fruits and then divide it by number of oranges to get the part of circle that represents number of oranges...

  • Total fruits= 7+3+6+2+6 = 24
  • Number of oranges= 6

\sf \: fraction \: of \: circle \: represeting \: oranges:  \\  \bf \:  \frac{total \: fruits}{number \: of \: oranges}

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  • <em>Thus, Option D is the correct choice!!~</em>
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yKpoI14uk [10]
Answers:
Part A: The value of x must be 0
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----------------------------------------------------------------

Explanation:

Part A) We have the equation (7^2)^x = 1 which simplifies to 7^(2x) = 1. The only way to get the left side equal to the right side is to have the exponent of 2x equal zero. If 2x = 0, then x = 0. So that's why x = 0 is the only solution here.

--------------

Part B) Similar to part A above, but the exponent is slightly different now. We have (7^0)^x = 1 which turns into 7^(0*x) = 1. The exponent 0*x is really 0 no matter what x is. We can plug in any real number we want for x and the left side will always be 1. This is why the solution set to this equation is the set of all real numbers. 
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Step-by-step explanation:

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