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Marrrta [24]
3 years ago
9

When are the lines parallel?

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
4 0

Answer:

A.

Step-by-step explanation:

When we write out the slope-intercept form of the systems of equations for A:

y = 5 - 2/3x

y = 1 - 2/3x

Parallel lines have the same slope but different y-intercept. Therefore, our answer is A.

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Write a numerical expression for the difference of 100 and x
frosja888 [35]

Answer:

100-x

Step-by-step explanation:

Hope this helps:)

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Helppppp PLEASE please please
Westkost [7]
F(x) = 30.eˣ
We notice that the graph intercept y-axis at 30
in f(x) = 30.eˣ , for x=0, e⁰ =1 and f(x) = 30
In short it's the only function that has a y-intercept = 30 (answer B)
7 0
4 years ago
Which of the following shows a true statement? -12 + (-7) = 12 - 7
Marizza181 [45]

Answer:

ok so its the first one

Step-by-step explanation:

it shows th same kind of aleration

5 0
3 years ago
Anybody know this plz help me
aniked [119]

y= -3/1x + 5

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4 0
3 years ago
Read 2 more answers
Based on information from Harper’s Index, 37% of adult Americans believe in Extraterrestrials. Out of a random sample of 100 adu
san4es73 [151]

Answer:

z(s)  is in the rejection zone , therefore we reject H₀

We have enough evidence to claim the proportion of individuals who attended college and believe in extraterrestrials is bigger than 37%

Step-by-step explanation:

We have a prortion test.

P₀  =  37 %         P₀  = 0,37

sample size  =  n  =  100

P sample proportion   =   P  = 47 %        P  =  0,47

confidence interval  95 %

α  =   0,05  

One tail-test  (right tail) our case is to show if sample give enough information to determine if proportion of individual who attended college is higher than the proportion found by Harper´s index.

1.-Hypothesis:

H₀      null hypothesis                        P₀  =  0,37

Hₐ  alternative hypothesis                P₀  >  0,37

2.-Confidence interval 95 %

α  =   0,05        and    z(c)  =  1.64

3.-Compute of z(s)

z(s)  =  [  P  -  P₀  ]  /√(P₀Q₀/n) ]  

z(s)  =  [ (  0,47  -  0,37  ) /  √0.37*0,63/100

z(s)  = 0,1 /√0,2331/100     ⇒   z(s)  = 0,1 /0,048

z(s)  = 2.08

4.-Compare  z(s)   and  z(c)

z(s) > z(c)        2.08  > 1.64

5.-Decision:

z(s)  is in the rejection zone , therefore we reject H₀

We have enough evidence to claim the proportion of individuals who attended college and believe in extraterrestrials is bigger than 37%

5 0
3 years ago
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