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3 years ago

Which is the graph of x – y = 1? Image for option 1 Image for option 2 Image for option 3 Image for option 4

Mathematics

2 answers:

mars1129 [50]3 years ago

7 0

That One ..bla bla must be 20 characters long..

dalvyx [7]3 years ago

3 0

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

$x-y=1$

This is a linear equation

Isolate the variable y

$y=x-1$

we know that

The slope of the line is positive $m=1$

The x-intercept is the point $(1,0)$ ----> value of x when the value of y is equal to zero

The y-intercept is the point $(0,-1)$ ----> value of y when the value of x is equal to zero

Plot the intercepts to graph the line

see the attached figure

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Passes through (-4, 11) and (2,8)

g100num [7]

Are you looking for slope?

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3 years ago

The probability of drawing a heart from a standard deck of cards is 0.25. You record the car do you draw and return the car befo

Licemer1 [7]

Answer: C) 0.112

Step-by-step explanation:

In binomial distribution with parameters n (Total trails) and p (probability of getting success sin each trial) , the probability of getting success in x trials is given by :-

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

Given : The probability of drawing a heart from a standard deck of cards is 0.25

Here , getting heart is the success.

Then p= 0.25

For n= 20

The probability that you will draw a heart seven times i.e. x= 7:

$P(X=7)=^{20}C_7(0.25)^7(1-0.25)^{20-7}$

$P(X=7)=\dfrac{20!}{7!(20-7)!}(0.25)^7(1-0.25)^{20-7}\ \ [\because\ ^nC_r=\dfrac{n!}{r!(n-r)!}]$

$=\dfrac{20\times19\times18\times17\times16\times15\times14\times13!}{7!13!}(0.25)^7(0.75)^{13}\\\\=77520(0.00006103515625)(0.0237572640181)\\\\=0.112406195476\approx0.112$

Hence, the probability that you will draw a heart seven times = 0.112

Thus , the correct answer is C) 0.112 .

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3 years ago

Sora was given two data sets, one without an outlier and one with an outlier. Data without an outlier: 108, 113, 105, 118, 124,

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The outlier (61) is at the low end of the data set, but doesn't affect the mean by a lot, so ...

The mean is centered among the other numbers in both sets of data.

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Arada [10]

The answer is point C' is (6,2).

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Which is equivalent to 8s + 20t by the distributive property?

Shalnov [3]

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