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BartSMP [9]
3 years ago
8

Which graph shows the solutions to x^2+3x-1 ≥ 0

Mathematics
2 answers:
spayn [35]3 years ago
6 0

Answer:

if i'm not mistaken the answer is B

Finger [1]3 years ago
6 0

Answer:

Ans for the solution is B

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In a shipment of 22 smartphones, 2 are defective. How many ways can a quality control inspector randomly test 4 smartphones, of
Eddi Din [679]

Answer:

Therefore the required ways are =190

Step-by-step explanation:

Combination: Combination is the number of selection of items from a collection of items where the order of selection does not matter.

Total number of smartphones =22

Defective phone = 2

Non defective phone = (22-2) =20

The control inspector randomly test 4 smartphones of which 2 are defective.

Non defective phone = 2

The ways to select 2 non defective phone is

^{20}C_2=\frac{20!}{2!(20-2)!} =\frac{20!}{2!18!}=\frac{19\times 20}{2} =190

The ways to select 2 defective phone is= ^2C_2=1

Therefore the required ways are = (190×1) =190

5 0
4 years ago
1 5/8 * 3 2/3 in simplest form
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20

Step-by-step explanation:

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3 years ago
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Boyle's Law says that the volume of a gas varies inversely with the pressure. When the volume of a certain gas is 5 L , the pres
olga2289 [7]
Let P = Pressure, V = Volume and be K = constant, by definition of Boyle's Law in which says that the volume of a gas varies inversely with the pressure, we have:  P = K / V  586 = K / 5  K = 2930.  Then, the pressure when the volume is 2L will be:  P = 2930/2 = 1465Kpa
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What do I do? please help
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Well i believe its 23 my son
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What is the equation of a line that passes through the point (6, 1) and is perpendicular to the line whose equation is y=−2x−6y=
Mandarinka [93]
Lets get the negative reciprocal of the slope so we get
m  =  \frac{1}{2}
Now the equation that is perpendicular is
y =  \frac{1}{2} x + b
Lets solve for b by plugging in the point (x,y)=(6,1)
1 =  \frac{1}{2} (6) + b \\ 1 = 3 + b \\ 1 - 3 = b \\ b =  - 2
Now plug that into the equation. So the equation of the line that is perpendicular and
passes through the point (6, 1) is
y =  \frac{1}{2} x  - 2
6 0
3 years ago
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