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Allisa [31]
3 years ago
13

Jon and Ade share some socks in the ratio 2:7 Jon gets 18 sock how many does Ade get

Mathematics
1 answer:
kiruha [24]3 years ago
4 0

Answer:

63

Step-by-step explanation:

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The polynomial function y = x3 -3x2 + 16x - 48 has only one non-repeated x-intercept. What do you know about the complex zeros o
earnstyle [38]
• First way to solve:
We'll manipulate the expression of the equation:

y=x^3-3x^2+16x-48\\\\ y=x^2(x-3)+16(x-3)\\\\ y=(x-3)(x^2+16)

If we have y=0:

x-3=0~~~or~~~x^2+16=0\\\\ x=3~~~or~~~x^2=-16\\\\ x=3~~~or~~~x=\pm\sqrt{-16}\\\\ x=3~~~or~~~x=\pm4i

Then, the function has one real zero (x=3) and two imaginary zeros (4i and -4i).

Answer: B


• Second way to solve:

The degree of the function is 3. So, the function has 3 complex zeros.

Since the coefficients of the function are reals, the imaginary roots are in a even number (a imaginary number and its conjugated)

The function "has only one non-repeated x-intercept", then there is only one real zero.

The number of zeros is 3 and there is 1 real zero. So, there are 2 imaginary zeros.

Answer: B.
3 0
3 years ago
Help me please thanks
Lelu [443]

Answer:

-5/9

Step-by-step explanation:

also for this one, you have to put x as 3, y as 4, and z as 1

4/3(3)-1

=4/9-1

=4/9-9/9

=-5/9

hope this helps xD

7 0
3 years ago
Heeeeelllpppp<br> -6xy^5 - 15x^4 + 9x
schepotkina [342]

Answer:

-3x(2y^5+5x^3-3)

Step-by-step explanation:

-6xy^5 - 15x^4 + 9x

-6xy^5-15xx^3+9x

2*3xy^5+5+3xx^3z+3*3x

Factor:

-3x(2y^5+5x^3-3)

7 0
3 years ago
2. The cost of a computer has been discounted by $239, so that the sale price is $1230.
Afina-wow [57]

Answer:

5 dolla footlong

Step-by-step explanation:

8 0
3 years ago
Evaluate: (-2)5<br> A: 32 <br> B: 10<br> C: -10<br> D: -32
Annette [7]
-2×5 equals -10 because 2×5 = 10 and you have one negative which means your answer is going to be negative so C.
7 0
2 years ago
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