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egoroff_w [7]
3 years ago
7

What is the percent decrease of $65.50 to $52.40

Mathematics
1 answer:
Ray Of Light [21]3 years ago
5 0
<span>Divide 52.4 by 65.5 and multiply by 100. That is the percent of the 52.4 compared to 65.5.

</span>
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F(x)=9 x^{3} +2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)? Show all of your steps and write your finial answer in factored f
olasank [31]

Answer:

{ -0.5 - √2,  0,  -.5 + √2 }

Step-by-step explanation:

Let's rewrite these two functions in a vertical column:

 f(x)=9 x^{3} +2x^2-5x+4

-g(x)=5x^3-7x+4

Now combine (through subtraction) like terms, in order of descending powers of x:

f(x) - g(x) = 4x^ 3 + 2x^2 + 2x

Let's do some preliminary factoring here.  Factor 2x out of each term, obtaining

f(x) - g(x) = 2x(2x^2 + x + 1)

First setting 2x = 0, we find that x = 0 is one solution.

Applying the quadratic formula to 2x^2 + x + 1, we see that a = 2, b = 1 and c = 1.  Then the two roots of this quadratic are:

      -1 plus or minus √(1^2 - 4(2)(1) )        -1 ± √(8)

x = ----------------------------------------------- = ---------------

                         2(1)                                         2

This simplifies to:

      -1 plus or minus √(1^2 - 4(2)(1) )        -1 ± 2√(2)

x = ----------------------------------------------- = ---------------

                         2(1)                                         2

Thus, the roots of f(x) - g(x) are { -0.5 - √2,  0,  -.5 + √2 }

7 0
3 years ago
Peyton and Ashley have five red apples.peyton is holding five of the apples.how many is Ashley holding?
Pavlova-9 [17]
Ashley is holding nothing that is the answer.
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6 0
3 years ago
Read 2 more answers
1 + 1 = 2????? and<br>2 + 2 = 4??????
Vilka [71]

No, 1+1= Fish, 2+2=window duhhh xD

jkjk, 1+1=2 and 2+2=4 haha

3 0
3 years ago
Read 2 more answers
How many 1 fourths are in 3 fourths?
Mama L [17]

Answer:

12

Step-by-step explanation:

This question means 3/(1/4). The rule for division of fractions is invert the denominator and multiply. 3/(1/4) = 3 * 4 = 12. Another way to think of it is to imagine you have 3 pies each divided into quarters.

7 0
3 years ago
Suppose you have the 26 letters of the alphabet on separate cards in a hat. You pick out a card, write down the letter, put the
weeeeeb [17]
(1/26)⁶ = 1/308,915,776
4 0
3 years ago
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