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2 years ago

Please help me with this homework

Mathematics

1 answer:

Akimi4 [234]2 years ago

5 0

Answer:

Additive Identity I think, I'm not sure

Step-by-step explanation:

Tell me in the comments if I'm wrong.

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A lake is stocked with 1,500 young trout. If the number of the original trout alive after x years is given by the function P(x)=

musickatia [10]

The function $P(x)=1500e^{-0.4x}$ gives the number of the original trout alive after x years. When the number of the original trout alive is 300, then

$300=1500e^{-0.4x}$

Solve this equation:

$e^{-0.4x}=\dfrac{300}{1500},\\ \\e^{-0.4x}=\dfrac{1}{5},\\ \\-0.4x=\ln \dfrac{1}{5},\\ \\x=\dfrac{\ln \dfrac{1}{5}}{-0.4}\approx 4.024.$

Answer: after 4.024 year (or 5 year if round to the whole number of years)

7 0

3 years ago

X-intercept (3,0) and y-intercept (0,-6) point slope form please.

Viktor [21]

Answer:

$y+6=2x$

Step-by-step explanation:

we have

x-intercept (3,0) and y-intercept (0,-6)

step 1

Find the slope

The slope is

$m=(-6-0)/(0-3)=2$

step 2

Find the equation of the line into point slope form

The equation is equal to

$y-y1=m(x-x1)$

we have

$m=2$

$(0,-6)$

substitute

$y+6=2(x-0)$

$y+6=2x$ ----> equation of the line into point slope form

5 0

3 years ago

Please help!!!!

vfiekz [6]

I solved this problem by setting 240/80 equal to x/100 . Once you set them equal to each other, multiply 240 and 100 and divide the product by 80 and you get 300.

3 0

3 years ago

Simplify. x^3 ÷ x^5

fomenos

Answer:

x^-2

Step-by-step explanation:

(x*x*x)/(x*x*x*x*x)

1/x*x

1/x^2

x^-2

3 0

3 years ago

Read 2 more answers

Whats the math 7devided by y

Varvara68 [4.7K]

7y is the anwser
brainliest is appreciated

Hope this helped

7 0

3 years ago