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3 years ago

Please helppppppp :)

Mathematics

1 answer:

nekit [7.7K]3 years ago

8 0

Answer:

5/2 + 7/2 i

Step-by-step explanation:

3+8i. + 2-I /2

= 5+7i / 2

= 5/2 + 7/2 i

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When a breeding group of animals is introduced into a restricted area such as a wildlife reserve, the population can be expected

jasenka [17]

Answer:

A. Initially, there were 12 deer.

B. <em>N(10)</em> corresponds to the amount of deer after 10 years since the herd was introducted on the reserve.

C. After 15 years, there will be 410 deer.

D. The deer population incresed by 30 specimens.

Step-by-step explanation:

$N=\frac{12.36}{0.03+0.55^t}$

The amount of deer that were initally in the reserve corresponds to the value of N when t=0

$N=\frac{12.36}{0.33+0.55^0}$

$N=\frac{12.36}{0.03+1} =\frac{12.36}{1.03} = 12$

A. Initially, there were 12 deer.

B. $N(10)=\frac{12.36}{0.03 + 0.55^t} =\frac{12.36}{0.03 + 0.0025}=\frac{12.36}{y}=380$

B. <em>N(10)</em> corresponds to the amount of deer after 10 years since the herd was introducted on the reserve.

C. $N(15)=\frac{12.36}{0.03+0.55^15}=\frac{12.36}{0.03 + 0.00013}=\frac{12.36}{0.03013}= 410$

C. After 15 years, there will be 410 deer.

D. The variation on the amount of deer from the 10th year to the 15th year is given by the next expression:

ΔN=N(15)-N(10)

ΔN=410 deer - 380 deer

ΔN= 30 deer.

D. The deer population incresed by 30 specimens.

8 0

3 years ago

Expand and simplify x(x+2)x+(x+3)

Natasha_Volkova [10]

To start, first distribute the x's to their expressions. This would look like this:
(x*x+2*x)+(x*x+x*3)=x^2+2x+x^2+3x
Then, you combine like terms or simplify, and you get an answer of 2x^2+5x

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3 years ago

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How much do you make on EOG if you got 45/52

soldier1979 [14.2K]

If you are asking about the percent then it would be 83.33%

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3 years ago

Find the value of the given function's derivative at x=3

Rasek [7]

<h2>Explanation:</h2>

According to the chain rule, if we have a function:

$f(x)=k(g(x))$

The derivative at a point $a$ will be:

$f'(a)=k'(g(a))g'(a)$

We know that:

$f'(3)=k'(g(3))g'(3)\\ \\ \\ a=3 \\ \\ \\ Then: \\ \\ g(3)=2(3)-3^2 \\ \\ g(3)=6-9 \\ \\ g(3)=-3 \\ \\ \\ k'(g(3))=k'(-3)=2 \\ \\ \\ g'(x)=2-2x \\ \\ g'(3)=2-2(3)=-4 \\ \\ \\ Finally: \\ \\ f'(3)=2(-4) \\ \\ \boxed{f'(3)=-8}$

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3 years ago

The Hamptons Family has a fish tank holding 10,450 ml of water. The water is leaking at a rate of 270 ml per minute. How much wa

Fudgin [204]

10450-270x=?
x=15
10450-270(15)=?
10450-4050=6400

there is 6400ml left in the tank after 15 minutes

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3 years ago