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atroni [7]
4 years ago
11

This confuses me, can someone explain it?

Mathematics
1 answer:
Nadya [2.5K]4 years ago
8 0
Check the picture below.

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Solve by Completing the Square: x2 + 8x + 6 = 0
BlackZzzverrR [31]

Answer:

X2+8X+6=0

We add all the numbers together, and all the variables

X^2+8X+6=0

a = 1; b = 8; c = +6;

Δ = b2-4ac

Δ = 82-4·1·6

Δ = 40

The delta value is higher than zero, so the equation has two solutions

We use following formulas to calculate our solutions:

X1=−b−Δ√2aX2=−b+Δ√2a

The end solution:

Δ−−√=40−−√=4∗10−−−−−√=4√∗10−−√=210−−√

X1=−b−Δ√2a=−(8)−210√2∗1=−8−210√2

X2=−b+Δ√2a=−(8)+210√2∗1=−8+210√2

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP!
RUDIKE [14]

3x^2 + 23x - 8 can be factored into (3x - 1)(x + 8). To double-check, you can multiply the terms together again using FOIL: first, outside, inside, last.


(3x)(x) + (3x)(8) + (-1)(x) + (-1)(8)


3x² + 24x - x - 8


3x² + 23x - 8


Check.

8 0
3 years ago
Read 2 more answers
HELP ASAP PLEASE?!
tigry1 [53]

Answer: your anwser would be 500 c

Step-by-step explanation:

this is becuase for 1 hour it is 50 miles so you would multply 10 times 50 and get 500 please mark brainliest

7 0
3 years ago
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What does find the constant rate of change mean?
natulia [17]

The change of the cost changes when the pounds of ham changes. When the pounds of ham is 0, it costs 0 dollars. When the pounds of ham is 3, it costs 12 dollars. The cost changes consistently with the pounds of ham. They change together. Every time the pounds of ham goes up by 3, the cost goes up by 12.

7 0
4 years ago
You find 12 coins under the couch. Every coin is either a nickel or a penny, and they add up to a total of 23 cents. How many of
saul85 [17]
4 nickels and three pennies?
6 0
3 years ago
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