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2 years ago

Ellen thinks that if a line has no slope, then it never touches the y-axis. Which line proves that her statement is incorrect?

Mathematics

1 answer:

Serggg [28]2 years ago

4 0

Answer:

An horizontal line.

Step-by-step explanation:

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A radioactive substance decays exponentially. A scientist begins with 190 milligrams of a radioactive

worty [1.4K]

Answer: 65.1 (mg)

Step-by-step explanation:

$y=190*e^{-a*t}\\\\Calculate\ a:\\\\t=33,y=95(mg)\\\\190*e^{-a*33}=95\\\\e^{-a*33}=0.5\\\\-a*33=ln(0.5)\\\\a=\dfrac{ln(\dfrac{1}{2}) }{-33} \\\\a=0,02100... \approx{0.021}\\\\If\ t=51\ h, y=190*e^{-0.02100*51}=65.09167...\approx{65.1}$

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2 years ago

32% of an amount of money is $200. What is the total amount?

Alik [6]

$0.32x=200\\x=625$

$625.

8 0

3 years ago

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Help me I’m not sure the answe

DiKsa [7]

Answer:

i believe it would be the last option.

Step-by-step explanation:

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2 years ago

How can I Graph<br> -7x= -105

worty [1.4K]

Answer:

see explanation

Step-by-step explanation:

- 7x = - 105 ( divide both sides by - 7 )

x = 15

A line with equation x = c is a vertical line parallel to the y- axis passing through all points with an x- coordinate of c

Thus x = 15 is a vertical line passing through all points with an x- coordinate of 15

Plot (15, 0 ) , (15, 3 ) and (15, - 3) and join a straight line through them for graph

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1 year ago

Given f(x)=x^2-2x find f(6)

-BARSIC- [3]

Step-by-step explanation:

In the picture, I hope that it's a clear solution.

7 0

2 years ago

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