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3 years ago

Please help me asap impor

Mathematics

1 answer:

jeka57 [31]3 years ago

5 0

I’m not sure sorry ☹️

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9. What is the inverse of y = 10x -2?

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Answer:

f(x)^-1=x-2/10

Step-by-step explanation:

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3 years ago

What’s the amplitude,period,equation of axis, and range for y=3sin[2(x+90)]?

d1i1m1o1n [39]

Answer:

amplitude: 3
period: π
axis: y = 0
range: [-3, +3]

Step-by-step explanation:

The amplitude is the multiplier of the sine function: 3.

The period is 2π divided by the coefficient of x: 2π/2 = π.

The equation of the axis is any added constant: y = 0.

The range is the axis value ± the amplitude value: from -3 to +3.

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3 years ago

Did we invent math or did we discover it?

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Mathematics is not discovered, it is invented

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3 years ago

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In a box of 10 calculators, one is defective. In how many ways can four calculators be selected, if you know one

Juliette [100K]

Given:

Total number of calculators in a box = 10

Defective calculators in the box = 1

To find:

The number of ways in which four calculators be selected and one of the four calculator is defective.

Solution:

We have,

Total calculators = 10

Defective calculators = 1

Then, Non-defective calculator = 10-1 = 9

Out of 4 selected calculators 1 should be defective. So, 3 calculators are selected from 9 non-defective calculators and 1 is selected from the defective calculator.

$\text{Total ways}=^9C_3\times ^1C_1$

$\text{Total ways}=\dfrac{9!}{3!(9-3)!}\times 1$

$\text{Total ways}=\dfrac{9\times 8\times 7\times 6!}{3\times 2\times 1\times 6!}$

$\text{Total ways}=\dfrac{9\times 8\times 7}{6}$

$\text{Total ways}=3\times 4\times 7$

$\text{Total ways}=84$

Therefore, the four calculators can be selected in 84 ways.

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3 years ago

Briefly describe a predatory/prey boom bust graph.

-Dominant- [34]

Answer:

This can lead to cyclical patterns of predator and prey abundance, where prey increase in number and then, with abundant food, predator number increases ...

Step-by-step explanation:

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3 years ago