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mezya [45]
3 years ago
10

F(x)=-x^2+2mx+2m-3 with x<0

Mathematics
1 answer:
Ivanshal [37]3 years ago
3 0

Answer:

m<√-3 OR m<√3i

Step-by-step explanation:

f(x)=x²+2m(x+1)-3

with x<0

b²-4ac<0

(2m)²-4(1×-3)<0

4m²+12<0

4m²<-12

m²<-12/4

m²<-3

m<√-3 OR m<√3i

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Answer:

20 km = 12.4274 miles.

Step-by-step explanation:

20/1.609 = 12.4274

Divide by 1.609 when converting kilometers to miles.

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4 years ago
It took every 55 minutes to run a 10-meter race last weekend. If you know that 1 kilometer equals 0.621 mile, how many minutes d
Umnica [9.8K]
Velocity=distance/time
Data:distance=10 Km=10 km*(0.621 miles/1 km)=6.21 miles.time=55 minutes
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4 years ago
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3 0
3 years ago
Solve to find x <br> log (3x+5) to base 5= 2log (1-3x) to base 25
Eduardwww [97]

Answer:

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Step-by-step explanation:

in order to cancel out the logs they should have common bases

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\mathsf{ \implies  log_{5}(3x + 5) =  2 \: log_{ {5}^{2} }(1 - 3x)  }

we know that the reciprocal of the exponents of the bases are multiplied to the log

\mathsf{ \implies  log_{5}(3x + 5) =   \frac{1}{\cancel{2} } \times \cancel{2} \: log_{ 5}(1 - 3x)  }

and now since the logs have common bases

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8 0
3 years ago
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frozen [14]

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D

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3 years ago
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