3 years ago

I need help pronto {(2,2,),(-5,2),(6,6),(9,4),(4,9)} is it a function and explain please

Mathematics

1 answer:

Mrac [35]3 years ago

6 0

Answer:

yes, because the x values are all different. if the y values are the same it doesnt matter.

Step-by-step explanation:

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Sonja [21]

1. C

2. A

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3 years ago

42 of the 150 employees at Carlo's Car Repair wear contact lenses. What percent of the employees wear contact lenses?

antiseptic1488 [7]

$\frac{42}{150}$ ÷ 2 = $\frac{21}{75}$

$\frac{21}{75}$ ÷ 3 = $\frac{7}{25}$

$\frac{42}{150}$ = $\frac{7}{25}$

Then, divide 7 by 25 because 25 is the divisor

7 ÷ 25 = 0.28

28% is the answer (:

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3 years ago

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Anestetic [448]

It’s the first one I believe.

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2 years ago

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What is the equation in point-slope form of the line passing through (2, 5) and (−1, 8)?

julsineya [31]

(2,5)(-1,8)
slope = (8 - 5) / (-1 - 2) = 3/-3 = -1

y - y1 = m(x - x1)
slope(m) = -1
(2,5)...x1 = 2 and y1 = 5
now we sub
y - 5 = -1(x - 2) <==

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3 years ago

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A sample of bacteria is decaying according to a half-life model. If the sample begins with 800 bacteria, and after 13 minutes th

nikklg [1K]

Answer:

56.42 minutes

Step-by-step explanation:

The initial sample= y0 = 800

After 13 minutes , amount = 320

Y= y0e-kt

320 = 800e-k(13)

320/800 = e-k13

0.4 = e-k13

In0.4 = -k13

-0.91629= -k13

0.07048= k

Y = 800e-0.07048t

Minutes when the bacterial present will be 15

15 = 800e-0.07048t

15/800= e-0.07048t

0.01875 = e-0.07048t

In 0.01875 = -0.07048t

-3.97656 = -0.07048t

-3.97656/-0.07048= t

56.42 = t

56.42 minutes

3 0

3 years ago