3 years ago

Use the distributive property to simplify the expression

1 answer:

5 0

Distributive property states that z(x + y) = zx + zy.

25(x - y) = 25x - 25y

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fredd [130]

12/x+5
x represents “a number” because it’s unknown and the + sign is because the words sum

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3 years ago

kari74 [83]

No because the number has to be between 1 and 10 so it should be 2.6x10^3

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3 years ago

Gre4nikov [31]

|5 - 7| = |-2| = 2

|12.4 - 16.1| = | -3.7| = 3.7

-2 x 7 = -14

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4 years ago

Dima020 [189]

Answer:

I need help too

Step-by-step explanation:

4 0

3 years ago

34kurt

Answer:

The bacterial culture loses $\dfrac{5}{8}$ of its size every 7 seconds.

Step-by-step explanation:

The relationship between the elapsed time t, in seconds, and the number of bacteria, N(t), in the petri dish is modeled by the function:

$N(t)=4900\cdot\left(\dfrac38\right)^{t/7}$

Since the growth factor is less than 1, it is a decay equation.

$\dfrac38=1-\dfrac58\\N(t)=4900\cdot\left(1-\dfrac58\right)^{t/7}$

Observe that the time t is divided by 7.

This is the period.

We can therefore say that the bacterial culture loses $\dfrac{5}{8}$ of its size every 7 seconds.

3 0

4 years ago