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3 years ago

(x-4) ( x-4)=0 explain , step by step please

2 answers:

7 0

So your goal is to make (x-4) equal 0. Just this of the number that cancels -4 out so you’ll be left with a zero in the parentheses: (4-4)(4-4)=0. So you’ll have (0)(0)=(0). We know that 0 times 0 is zero, so you’ll end up with 0=0 and since that is a true statement, x=4.

Ganezh [65]3 years ago

3 0

Answer:

x = 4

Step-by-step explanation:

Step 1: Set both parts equal to 0

x - 4 = 0 and x - 4 = 0

Step 2: Solve for x by adding 4 to both sides

x - 4 + 4 = 0 + 4 and x - 4 + 4 = 0 + 4

x = 4 and x = 4

Answer: x = 4

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3 years ago

The population of a community is known to increase at a rate proportional to the number of people present at time t. If the popu

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Answer:

$P(t) = P(0)e^{0.0693t}$

Step-by-step explanation:

The population of a community is known to increase at a rate proportional to the number of people present at time t.

This means that the population growth is modeled by the following differential equation:

$\frac{dP(t)}{dt} = rP(t)$

Which has the following solution:

$P(t) = P(0)e^{rt}$

In which P(t) is the population after t years, P(0) is the initial population and r is the growth rate.

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This means that $P(10) = 2P(0)$ . We use this to find r.

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$10r = \ln{2}$

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$r = 0.0693$

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3 years ago

SOlve the equation 0.25 r - 0.125 + 0.5 r = 0.5 +r

seropon [69]

You put all the numbers on one side of the equation and letters on another.

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Firlakuza [10]

Answer: c

Step-by-step explanation:

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3 years ago

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