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2 years ago

Graph x > -1 on the number line

Mathematics

1 answer:

Verdich [7]2 years ago

7 0

Number Line:

Closed Circles are used when signs are "≤" or "≥"

Open Circles are used when signs are "<" or ">"

The graph of x > -1 on a number line would be towards the right from -1 with open circle as the sign is ">"

Graph should look like this:

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I need some help with this one. Please give it a go! Thank you for your time!

LekaFEV [45]

Answer:

A) $3x^{2} - x - 4$

B) $-3x^{2} -4x -5$

Step-by-step explanation:

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3 years ago

HELP PLSSSS I WILL GIVE A BRAINLY AND 20 POINTS!!

Lubov Fominskaja [6]

Answer:

y=x-4 or f(x)=x-4

Step-by-step explanation:

therefore, x=1 ,y=-3; x=2, y=-2 ; etc

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3 years ago

Which of the given values is a solution to the equation −11=5t−9

padilas [110]

-11+9= 5t
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t= -2/5

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3 years ago

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OverLord2011 [107]

The correct answer is C.

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3 years ago

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Suppose the probability that a softball player gets a hit in any single at-bat is 0.300. Assuming that her chance of getting a h

Ksivusya [100]

Answer:

$P(X=4)=(1-0.3)^{4-1} 0.3 = 0.103$

The probability that she will not get a hit until her fourth time at bat in a game is 0.103

Step-by-step explanation:

Previous concepts

The geometric distribution represents "the number of failures before you get a success in a series of Bernoulli trials. This discrete probability distribution is represented by the probability density function:"

$P(X=x)=(1-p)^{x-1} p$

Let X the random variable that measures the number os trials until the first success, we know that X follows this distribution:

$X\sim Geo (1-p)$

Solution to the problem

For this case we want this probability

$P(X=4)$

And using the probability mass function we got:

$P(X=4)=(1-0.3)^{4-1} 0.3 = 0.103$

The probability that she will not get a hit until her fourth time at bat in a game is 0.103

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3 years ago