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Kitty [74]
3 years ago
8

3x^2 + 6 - 2x + 5x - 4x^2 + 9

Mathematics
1 answer:
Over [174]3 years ago
4 0
3x * 3x = 9x

9x + 6 - 2x + 5x - 4x^2 + 9

9x + 6 - 7x - 4x * 4x + 9

9x + 6 - 7x - 16x + 9

9x + -7x = 2x + 6 - 16x + 9

2x + 6 - 16x + 9

2x + (-3) - 16x

-14x + (-3) is the expression?
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what number must be subtracted from both the numerator and denominator of 5/9 to obtain a fraction equal to 3/8
RideAnS [48]

Answer:

67 / 72

Step-by-step explanation:

3/8 + 5/9 = 27/72 + 40/72 = 67/72

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3 years ago
a student claims -4i is the only root of a quadratic polynomial equation that has real coefficients whats the students mistake a
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Step-by-step explanation:

7 0
4 years ago
Can someone please help ASAP
Talja [164]
Answer:
6

how:
add up all the numbers the divide by the amount of numbers given.

Use:
First, I added all the numbers up and got 48.
Next, I divided by 8.
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6 0
3 years ago
Read 2 more answers
A store makes shirts and jackets to sell each shirt costs $4 to make and each jacket costs $25 to make
Naddik [55]
The answer will be $100
5 0
4 years ago
The total amount of spending per​ year, in​ billions, on pets in a certain country x years after 2000 is given by the following
Kamila [148]

Answer:

40.4502 billion dollars

51.3432 billion dollars

Step-by-step explanation:

Given :

Total amount spent in billions in pets x years after year, 2000 ;

P(x)=2.1786x + 25.2

Amount spent in 2007 ;

x = 2007 - 2000 = 7 years

Put x = 7 in the equation :

P(7)=2.1786(7) + 25.2 = 40.4502

Amount spent in 2012 :

x = 2012 - 2000 = 12 years

Put x = 12 in the equation :

P(12) = 2.1786(12) + 25.2 = 51.3432

The amount spent in billik dollars on pets in :

2007 = $404502 billion

2012 = $51.3432 billion

8 0
3 years ago
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