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harkovskaia [24]
3 years ago
10

Using the quadratic formula to solve 4x^2-3x+9=2x+1, what are the values of x?

Mathematics
1 answer:
labwork [276]3 years ago
7 0

Rewrite 4x^2-3x+9=2x+1 as 4x^2-5x+8 = 0


Here, a = 4, b = -5 and c = 8. Then,


5 plus or minus sqrt (25 -4(4)(8) )

x = ------------------------------------------------------

8

5 plus or minus sqrt (-103)

= --------------------------------------

8

5 plus or minus i*sqrt(103)

Then x = ----------------------------------------

8


= ---------------------------------------------

8

= ----------------------------

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Evaluate x - 7 for x = 14.
Aleksandr-060686 [28]

Answer:

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Step-by-step explanation:

x-7=14

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8 0
3 years ago
What is 314.16 rounded to the nearest hundredth
Galina-37 [17]

Since there is no number in the thousandths place which would make the number in the hundredths place round up or down, we keep the number the same:

314.16

Hope it helps! Good luck. :)

4 0
2 years ago
Can someone please help me?
Allisa [31]

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2 years ago
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Art [367]

Answer:

the mean is 5

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6 0
2 years ago
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James is hosting a game show where a contestant has to draw a ball that is one of four colors from a pot. Each day, a ball of a
Rashid [163]
Let the number of red, black, green and blue balls be R, B, G, U respectively.

B=R  (There are as many black balls as red balls)

G+R=10 so G=10-R (Green balls and red balls should add up to 10)

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4R≥2,304

R≥2,304/4=576 so R=576


Answer: 576 
4 0
3 years ago
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