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elixir [45]
3 years ago
12

15 POINTS!!!!!!! A population of bacteria increases by 30 every hour. Is this situation linear or exponential? A. Exponential, b

ecause the function grows by a common factor B. Exponential, because the function decreases C. Linear, because the function decreases D. Linear, because the function increases by a constant amount
Mathematics
1 answer:
Georgia [21]3 years ago
8 0
Answer is: D. Linear, because the function increases by a constant amount

It’s gonna be D.
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Help pleaseeeeeeeeeee
Nataliya [291]

Answer:

28

Step-by-step explanation:

You follow the order of operations - PEMDAS

3 0
2 years ago
Three years hence a father will four times as old as his son will be. Before two years he was seven times as old as his son was.
myrzilka [38]

Answer: The father is 37 years and the son is 7 years

Step-by-step explanation:

Let x represent the present age of the father.

Let y represent the present age of the son.

Three years hence a father will four times as old as his son will be. This means that

x + 3 = 4(y + 3)

x + 3 = 4y + 12

x - 4y = 12 - 3

x - 4y = 9- - - - - - - - - - - - - - - -1

Before two years he was seven times as old as his son was. This means that

(x - 2) = 7(y - 2)

x - 2 = 7y - 14

x - 7y = - 14 + 2

x - 7y = - 12- - - - - - - - - - - - - - -2

Subtracting equation 2 from equation 1, it becomes

3y = 21

y = 21.3 = 7

Substituting y = 7 into equation 1, it becomes

x - 4 × 7 = 9

x - 28 = 9

x = 9 + 28

x = 37

7 0
3 years ago
Read 2 more answers
For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Find the slope and y-intercept of the data
Vlad1618 [11]

Answer:

slope: 5

y-intercept: 3

therefore y=5x+3

Step-by-step explanation:

the slope is the value that is changing; as time passes the price increases by $5 per hour

the y-intercept is where the function crosses the y-axis (when x is 0); so when no time has passed.

6 0
3 years ago
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HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
frutty [35]

Answer:

m∠7=34°

Step-by-step explanation:

m∠2=m∠8=146° because alternate interior angles are congruent.

m∠7=180-m∠8=34° because it is a linear pair.

3 0
3 years ago
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Expand the following by using the distributive property: 6(-3w+1/3)
zepelin [54]

Answer:

-18w+2

Step-by-step explanation:

6*-3w=-18w

1/3*6=2

7 0
3 years ago
Read 2 more answers
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