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3 years ago

Which is a y-intercept of the graphed function? (–9, 0) (–3, 0) (0, –9) (0, –3)

Mathematics

2 answers:

Nana76 [90]3 years ago

8 0

Answer:

C is the answer

Step-by-step explanation:

The Y intercept of the graphed function would be,

(0,-9) because the graph (which is a function) intercepts on (0,-9) therefore the function's y-intercept is,

b= -9

zaharov [31]3 years ago

7 0

Answer:

Correct option is:

(0,-9)

Step-by-step explanation:

Y-intercept are those points where the value of x equals zero or from the graph we can say y-intercept are those points where the graph meets the y-axis

So, (-9,0) and (-3,0) are incorrect options.

Also, (0,-3) is incorrect

since, as we can see the graph it doesn't passes through that point.

so, we are left with only one option

Hence, the correct option is:

(0, -9)

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A scale of the Golden Gate Bridge in San Francisco Bay has

lora16 [44]

Answer:

2520ft

Step-by-step explanation:

Calculation for what is the scale of the model?

Let x will be the span length

Hence,

x= 4200 feet long/20 inches long

x=210

Thus:

1 inch = 210 ft

1 ft = 2520

=2520ft

Therefore the scale of the model will be 2520ft

3 0

3 years ago

Please help ASAP!!!! Will give brainliest!!!

ElenaW [278]

Answer: 0

Step-by-step explanation: it said round to the nearest hundredth when you just need 0.21 so 0.21 rounded to the nearest hundredth is going to be 0.

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3 years ago

Over the past decade, the mean number of hacking attacks experienced by members of the Information Systems Security Association

fredd [130]

Answer:

$P(X>600)=P(\frac{X-\mu}{\sigma}>\frac{600-\mu}{\sigma})=P(Z>\frac{600-510}{14.28})=P(z>6.302)$

And we can find this probability using the complement rule and the normal standard distribution and we got:

$P(z>6.302)=1-P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the number of attacks of a population, and for this case we know the distribution for X is given by:

$X \sim N(510,14.28)$