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3 years ago

100 points and beainliest due yesterday

Mathematics

1 answer:

Sedbober [7]3 years ago

8 0

Answer:

The relation is discrete function

Domain is {x|x = 2,2,2}

Range is {y|y = 4, -1, -3}

Step-by-step explanation:

I. This function is discrete because x = 2,2,2

and y = 4, -1, -3

Or (2,4), (2,-1) and (2,-3)

If this function is continuous, the x and y will be something like this -3 <= x <= 3

II. Domain is x.value

III. Range is y.value

Ask me for anything.

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Please help me out on this one

vivado [14]

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3 years ago

Solve the equation for me<br> 9y=8(y+11)

IrinaVladis [17]

To start, first distribute 8 to (y+11) which would look something like this:
9y=8y+88
Now, subtract 8y from both sides in order to solve for and isolate the y value. This would result in your answer, y=88.

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3 years ago

Read 2 more answers

Simplify the expression -3(x+3)-3+3x into standard form

timofeeve [1]

That in standard form would be 12

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3 years ago

If y= 1/5 when x=3, find y when x=4, given that y varies directly with x

lisov135 [29]

Answer:

Step-by-step explanation:

To find y when x=4, we must first find the relationship between them

The statement

y varies directly with x is written as

<h3> $y \: \: \: \alpha \: \: \: kx$ </h3>

where k is the constant of proportionality

From the question

when y = 1/5

x = 3

Substitute the values into the above formula and solve

That's

So the formula for the variation is

From the question

when x = 4

Hope this helps you

5 0

3 years ago

Gary is testing a river water sample in his lab. Initially, there are 64 bacteria in the river water sample. The number of bacte

rusak2 [61]

<h2>Hello!</h2>

The answers are:

- The quantity that represents the initial number of bacteria is <u>64.</u>

- The quantity that represents the rate at which the number of bacteria is increasing is (1+0.12) or <u>1.12</u> which means the growth rate percentage for the bacteria is 0.12 or (0.12*100), it will be <u>12%.</u>

To solve the problem, and complete the statements, we need to remember the form of the exponential growth.

The exponential growth formula is given by the following formula:

$P(t)=StartAmount(1+PercentageRate)^{t}$

Where,

Start Amount, is the starting population or amount.

(1+Percentage Rate), is the increasing rate

Percentage Rate, is the growth rate percentage.

t, is the time elapsed.

Now, we are given the following expression:

$P(3)=64(1.12)^{3}$

Which can be rewrited as:

$P(3)=64(1+0.12)^{3}$

So, we have that:

- The quantity that represents the initial number of bacteria is 64.

- The quantity that represents the rate at which the number of bacteria is increasing is (1+0.12) or 1.12 which means the growth rate percentage for the bacteria is 0.12 or (0.12*100), it will be 12%.

Have a nice day!

7 0

3 years ago