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natta225 [31]
3 years ago
14

You went to the mall with $80 you spend 25% of your money on a pair of shorts and 65% of the remainder on sandels how much did y

ou spend on the sandels.
Mathematics
2 answers:
vampirchik [111]3 years ago
6 0
Well 80 is total
25% of 80 is 20
so total now is 60
65% of 60
10% is 6
60% is 36
5 % is 3
36 +3 is 39
you spend 39 on the sandels
stiv31 [10]3 years ago
5 0
80*0.25=20
20*65=13
You spend $13 on the sandals
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anastassius [24]

If you're referring to the different sets of real numbers, it's the ones that you could try to do subtraction and not get an answer that still in that set.

For example, natural numbers (aka 1, 2, 3, 4, ...) are not, because 7 - 11 = -4 and -4 is not a natural number.

Also, whole numbers (aka 0, 1, 2, 3, 4, ...) has the same issue.

Basically any set of real numbers that doesn't include negative numbers will have this issue.

6 0
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Jason earns $7.00 for every lawn he mows this summer.Write an expression that can be used to show his earnings for mowing m lawn
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Finding a polynomial of a given degree with given zeros
galben [10]

Since f(x) is a polynomial with 3rd degree, then it will have 3 roots (zeroes)

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Since the real root is 4, then

x = 4

Since the complex root is (1 - i), then

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x = (1 - i)

x = (1 + i)

To find f(x) we will multiply the three factors of it

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x=4

Subtract 4 from both sides

\begin{gathered} x-4=4-4 \\ x-4=0 \end{gathered}

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The second factor is (x - 1 + i)

The third factor is (x - 1 - i)

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We will multiply them to find f(x)

\begin{gathered} (x-1+i)(x-1-i)= \\ x^2-x-ix-x+1+i+ix-i-(i^2)= \\ x^2-2x+1-(-1)= \\ x^2-2x+1+1= \\ x^2-2x+2 \end{gathered}

Multiply it by (x - 4)

\begin{gathered} f(x)=(x-4)(x^2-2x+2) \\ f(x)=x^3-2x^2+2x-4x^2+8x-8 \\ f(x)=x^3-6x^2+10x-8 \end{gathered}

The answer is

f(x)=x^3-6x^2+10x-8

5 0
1 year ago
PLEASE HELP!! WILL MARK BRAINLY!!
denpristay [2]

Answer:

  {4}

Step-by-step explanation:

It is helpful to let a calculator or spreadsheet perform the function evaluations for you. The two functions have the same value only for x=4 in the domain.

  f(4) = 13 = g(4)

_____

The functions also have the same value for x=-2, but that is not in the domain given.

6 0
3 years ago
Find the acute angle formed by line 2y=x+1​
givi [52]

Answer:

26.57°

Step-by-step explanation:

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6 0
3 years ago
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