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MaRussiya [10]
3 years ago
11

Can anyone help with this please really struggling and trying to figure it out

Mathematics
1 answer:
Art [367]3 years ago
5 0

Answer:

9.6 days

Step-by-step explanation:

You want to find t such that y = (1/2)·y₀. That is, you want to solve

... (1/2)y₀ = y₀·e^(-0.072t)

Dividing by y₀, you have

... 1/2 = e^(-0.072t)

and taking the natural log gives ..

... ln(0.5) = -0.072t

... ln(0.5)/-0.072 = t ≈ 9.627 . . . . divide by the coefficient of t

The half-life is approximately 9.6 days.

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Please helpppppppppppp
ioda

Answer:

96

Step-by-step explanation:

3*6=18*2=36

6*10=60*2=120

10*3=30*2=60

36+60+120=

216

8 0
3 years ago
Read 2 more answers
For f(x)=3x+1 and g(x)=x squared - 6 find (f- g)(x)
saveliy_v [14]
It helps to first clarify that the notation (f - g)(x) simply means f(x) - g(x). Given that, let's look at our f(x) and our g(x) here, and use their definitions to find their difference.

f(x)=3x+1\\g(x)=x^2-6

When we're taking (f - g)(x), we simply substitute the expression 3x + 1 for f(x) and the expression x² - 6 for g(x) to obtain:

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Or, ordering the polynomial from highest power to lowest and combining the constants:

-x^2+3x+7

Edit: By request, here's what would happen if you had something instead like:

(f\times g)(x)

In this case, you'd have to *multiply* the two function expressions together. Here's what that would look like:

(3x+1)(x^2-6)

Using the distributive property, we can distribute the expression 3x+1 to the terms x^{2} and -6:

(3x+1)x^2-(3x+1)6

Distributing again, we get:

3x(x^2)+x^2-3x(6)+6=3x^3+x^2-18x+6

And we're done.
5 0
3 years ago
Meghan walked 1/3 mile in 3 minutes, 5 seconds. If she walk at the same rate, what portion of a mile will she walk in one second
ELEN [110]
1/555 of a mile. I did this by figuring out how many seconds it would take her to walk a full mile and then got the answer for 1 second
6 0
4 years ago
A floor plan is drawing using a scale of 3cm/15ft what is the length is represented by 1 centimeter?
Reptile [31]

Answer:

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Step-by-step explanation:

divide 15 by three

5 0
3 years ago
Find the equation of the line perpendicular to 2x + 3y = -5 and
RUDIKE [14]

Answer:

3, -5

Step-by-step explanation: took the test

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4 years ago
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