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andre [41]
3 years ago
11

What is the only solution of 2x2 + 8x = x2 – 16?

Mathematics
2 answers:
posledela3 years ago
8 0
Simplify and solve quadratic equation:

2x^2+8x=x^2-16 => x^2+8x+16 => (x+4)^2=16 => x={-4,-4}
So numerically the only solution is x=-4.

However, mathematically, there are two solutions, {-4,-4}, or x=4,multiplicity 2.
True [87]3 years ago
4 0

Answer:

(-4,-4)

Step-by-step explanation:

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there are 12 teams in the jayhook hockey league each team plays every other team twice per season, once at home and once away. L
Gre4nikov [31]

Answer:

58

Step-by-step explanation:

As there are 12 teams in the league and each teams plays every other team twice per season. so, the total number of matches in the league will be 132.

let the matches won by home team = 'x'

given,

number of matches drawn = 34

matches won by the away team = x - 18

Now, according to the question,

⇒ total matches = matches drawn + matches won by home team + matches won by away team

⇒ 132 = 34 + x + x -18

⇒ x = 58

5 0
3 years ago
For the figures shown, HJKL ~ QRST, and the scale factor of HJKL to QRST is 9/7.
ch4aika [34]
Hey there! :)

JK ≈ RS

Scale Factor = 9/7

JK = 56

<u>56</u> · <u>9</u> = <u>504</u>  =  72
 1    7 =   7

Your answer ⇒ B.72

Hope this helps :)
4 0
3 years ago
Jessica earns $63.70 in 6.5 hours. How much does she earn in 1 hour?
hichkok12 [17]
She earned 9.8 bc if u cross multiply and a proportion of 63.7/6.5=x/1 u get 63.7=6.5x divide 6.5 for both sides of the equal sign and get 9.8
8 0
3 years ago
64.3- 3 x 23 - 2 is what.
Lena [83]

Answer: -6.7

Step-by-step explanation:

64.3−(3)(23)−2

=−6.7

3 0
2 years ago
Read 2 more answers
Please Help I will reward Brainliest
Gennadij [26K]
The answer is 60 degrees angle
8 0
3 years ago
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