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swat32
3 years ago
9

I need help with 5 and 6 please help must show work for brainliest

Mathematics
1 answer:
IRINA_888 [86]3 years ago
6 0
The answer to the question

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If x³ + 2x and x³ − 7x² + 4x +2 + k have a common linear polynomial factor, then the value of k is what?
Georgia [21]

Answer:

  • k = -2

Step-by-step explanation:

<u>Factor x³ + 2x:</u>

  • x³ + 2x = x(x² + 2)

1. <u>The common factor is x, then</u>:

  • 2 + k = 0 ⇒ k = -2 (all the rest are divisible by x)

2. Factor x² + 2 is not linear therefore we discard it.

8 0
3 years ago
True of False. Temperature measures the amount of thermal energy of a substance.
Sloan [31]
False because they are actually not the same thing
6 0
3 years ago
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james just bought a new car for 26,950 if it decreases in value by 15% annually how much will it be worth in five
puteri [66]
I believe the answer is 20212.5 if you meant how much will it be worth in 5 years.
I got this answer by multiplying 15% by 5 since annually means yearly.
15%(5)=75%
then turn 75% into a decimal by dividing 75 by 100
75/100=.75
Finally multiply 26950 by .75
26950 (.75)=20212.5

Hope this helps you.
4 0
4 years ago
The equation below shows the relationship between the temperature in degrees Celsius, C, and degrees Fahrenheit, F:
algol [13]
Th first answer
F = 9 over 5 C + 32
5 0
3 years ago
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What is the slope of this line of best fit?<br><br> 1/7<br> -6/7<br> -1/6<br> 1/6
IgorLugansk [536]

Answer:

-1/6

Step-by-step explanation:

8 0
3 years ago
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