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3 years ago

What is multiplication

2 answers:

8 0

It's pretty much combining a lot of addition into a smaller equation. For example, if you don't want to write it all out like 7+7+7+7+7+7+7=49, then you can condense it to 7*7=49. Another example is 6+6=12 is the same as writing 6*2=12.

Nostrana [21]3 years ago

4 0

Multiplication basically is for example 2·2=4. mutiply number that's all hun

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2(5+(3)(2)+4)

Elza [17]

Answer:

10+5+4+8=27

2(8+6)

=14×2=28

2(8+6

=16+6=22

3 0

3 years ago

Will mark brainliest Find the sum of x^2 + 3x and -2x^2 + 9x +5.

zimovet [89]

Answer: -x^2 + 12x +5

Step-by-step explanation:

6 0

3 years ago

Help please! (Explanations are preferred, since I have to know how to do this for a test)

Galina-37 [17]

Which one do you need help with

3 0

3 years ago

Animal populations are not capable of unrestricted growth because of limited habitat and food supplies. Under such conditions th

trasher [3.6K]

Answer:

(a) 100 fishes

(b) t = 10: 483 fishes

t = 20: 999 fishes

t = 30: 1168 fishes

(c)

$P(\infty) = 1200$

Step-by-step explanation:

Given

$P(t) =\frac{d}{1+ke^-{ct}}$

$d = 1200\\k = 11\\c=0.2$

Solving (a): Fishes at t = 0

This gives:

$P(0) =\frac{1200}{1+11*e^-{0.2*0}}$

$P(0) =\frac{1200}{1+11*e^-{0}}$

$P(0) =\frac{1200}{1+11*1}$

$P(0) =\frac{1200}{1+11}$

$P(0) =\frac{1200}{12}$

$P(0) = 100$

Solving (a): Fishes at t = 10, 20, 30

$t = 10$

$P(10) =\frac{1200}{1+11*e^-{0.2*10}} =\frac{1200}{1+11*e^-{2}}\\\\P(10) =\frac{1200}{1+11*0.135}=\frac{1200}{2.485}\\\\P(10) =483$

$t = 20$

$P(20) =\frac{1200}{1+11*e^-{0.2*20}} =\frac{1200}{1+11*e^-{4}}\\\\P(20) =\frac{1200}{1+11*0.0183}=\frac{1200}{1.2013}\\\\P(20) =999$

$t = 30$

$P(30) =\frac{1200}{1+11*e^-{0.2*30}} =\frac{1200}{1+11*e^-{6}}\\\\P(30) =\frac{1200}{1+11*0.00247}=\frac{1200}{1.0273}\\\\P(30) =1168$

Solving (c): $\lim_{t \to \infty} P(t)$

In (b) above.

Notice that as t increases from 10 to 20 to 30, the values of $e^{-ct}$ decreases

This implies that:

${t \to \infty} = {e^{-ct} \to 0}$

So:

The value of P(t) for large values is:

$P(\infty) = \frac{1200}{1 + 11 * 0}$

$P(\infty) = \frac{1200}{1 + 0}$

$P(\infty) = \frac{1200}{1}$

$P(\infty) = 1200$

5 0

3 years ago

Set up the proportion and find AB. Show all work and box your answer

velikii [3]

Answer:

x = 129

Step-by-step explanation:

86/48 = x/72

6192 = 48x

x = 129

6 0

3 years ago