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3 years ago

Does this table represent a function? Why or why not?

Mathematics

1 answer:

sleet_krkn [62]3 years ago

6 0

Answer:

not function because the x repeats and for it to be a function the x can not repeat for example the 2 is repeating in the table

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Find the equation of the line through point (-7,2) and parallel to y=2/5x-1/2

Vaselesa [24]

Answer:

y = 2/5x + 24/5

*View graph to see the lines*

Step-by-step explanation:

y = 2/5x - 1/2

Parrel lines have the same slope

y = mx + b

y = 2/5x + b

2 = 2/5(-7) + b

2 = -14/5 +b

5(2 = -14/5 +b)

10 = -14 + 5b

+14 +14

24 = 5b

/5 /5

24/5 = b

y = 2/5x + 24/5

Hope this helps!

6 0

2 years ago

Read 2 more answers

I need help please explain

Nitella [24]

Where's the picture or the papper or the problem I would help but I can't see it

4 0

3 years ago

Help me out here pleaseeeeeee

lord [1]

Answer : C (24 - 6) ÷ 3

(almost 100% sure this is correct lol)

8 0

3 years ago

Read 2 more answers

Perimeter of the figure?

vlabodo [156]

Answer:

32 cm

Step-by-step explanation:

As we could see if the image was a full rectangle with width is 7 cm and the length is 9 cm, the perimeter of it would be 32 cm.

8 0

3 years ago

Suppose X has a continuous uniform distribution over the interval [1.3, 6.2]. Round your answers to 3 decimal places.

goldenfox [79]

Answer:

(a) 3.75

(b) 2.00083

Step-by-step explanation:

It is provided that X has a continuous uniform distribution over the interval [1.3, 6.2].

(a)

Compute the mean of X as follows:

$\mu_{X}=\frac{a+b}{2}=\frac{1.3+6.2}{2}=3.75$

(b)

Compute the variance of X as follows:

$\sigm^{2}_{X}=\frac{(b-a)^{2}}{12}=\frac{(6.2-1.3)^{2}}{12}=2.00083$

(c)

Compute the value of P(X < 3.7) as follows:

$P(X < 3.7)=\int\limits^{3.7}_{1.3}{\frac{1}{6.2-1.3}}\, dx\\\\=\frac{1}{4.9}\times [x]^{3.7}_{1.3}\\\\=\frac{3.7-1.3}{4.9}\\\\\approx 0.4898$

Thus, the value of P(X < 3.7) is 0.4898.

5 0

3 years ago