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svetoff [14.1K]
2 years ago
6

Can someone help a fellow out :( ?

Mathematics
1 answer:
Komok [63]2 years ago
8 0

First to answer

Answer:

16/24

of the chocolate cake was eaten

13/16

of the red velvet cake was eaten

and

5/12

of the white cake was eaten.

Step by step explanation:

I subtracted the whole amount of cake by what was left.

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Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial in s
wolverine [178]

Answer:

x^4 - 14x^2 - 40x - 75.

Step-by-step explanation:

As complex roots exist in conjugate pairs the other zero is -1 - 2i.

So in factor form we have the polynomial function:

(x - 5)(x + 3)(x - (-1 + 2i))(x - (-1 - 2i)

= (x - 5)(x + 3)( x + 1 - 2i)(x +1 + 2i)

The first 2 factors  = x^2 - 2x - 15 and

( x + 1 - 2i)(x +1 + 2i) = x^2 + x + 2ix + x + 1 + 2i - 2ix - 2i - 4 i^2

=  x^2 + 2x + 1 + 4

= x^2 + 2x + 5.

So in standard form we have:

(x^2 - 2x - 15 )(x^2 + 2x + 5)

= x^4  + 2x^3 + 5x^2 - 2x^3 - 4x^2 - 10x - 15x^2 - 30x - 75

= x^4 - 14x^2 - 40x - 75.

7 0
3 years ago
I got ace in a week i felt so happy i wanna give someone branliest <br><br> 2+2
aleksandr82 [10.1K]

Answer:

4

Step-by-step explanation:

2 plus 2 equals 4 lmk if you need more help

7 0
2 years ago
Fred is making a bouquet of carnations and roses. The carnations cost $5.25 in all. The roses cost $1.68 each. How many roses di
olga nikolaevna [1]

Answer:

8 roses

Step-by-step explanation:

First start by subtracting $18.69 by $5.25 because you already know how much the carnations cost and how much the bouquet cost in all. When you subtract 18.69 by 5.25 you should get $13.44. If each rose cost $1.68 then divide 13.44 by 1.68 to get the amount of roses in the bouquet.

8 0
3 years ago
7. Ger and Amy are planting tulips. Ger has planted 60 tulips already and is planting more at a
artcher [175]

Answer:

23 hours

Step-by-step explanation: 44*32 = 1408 1408/60 = 23.46= 23 hours

3 0
3 years ago
Read 2 more answers
If f(x)f(x) is an exponential function where f(4.5)=23f(4.5)=23 and f(8)=42f(8)=42, then find the value of f(5.5)f(5.5), to the
nydimaria [60]

Answer:

f(5.5)≈27.32

Step-by-step explanation:

5 0
2 years ago
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