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3 years ago

What is the slope of the line y+1=3(x-4)

Mathematics

1 answer:

poizon [28]3 years ago

8 0

Answer:

To find the slope of this equation you need to put the equation into y=mx+b form

m=slope

First you need to take the 3 and distribute it to the x and -4 so

y+1=3x-12 ( next you want to subtract 1 from both sides)

y=3x-13

Your slope is therefore; 3

Step-by-step explanation:

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New question, what is 100 + 100 + 100 x 30?<br><br> More points!

vovikov84 [41]

Answer:

9,000

Step-by-step explanation:

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3 years ago

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Which phrase represents the algebraic expression 3d+7?

Anna [14]

Answer:

3 multiplied by a variable d and add seven to it

Step-by-step explanation:

3 multiplied by a variable d and add seven to it.

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3 years ago

4.2.9<br> For f(x)=2*, find f (7/2) <br> How do you solve this

postnew [5]

Step-by-step explanation:

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3 years ago

Please help me answer this question if you have time

mr Goodwill [35]

Answer:

C: $\frac{7x}{4} + 5y$

Step-by-step explanation:

1. Realize that 12 inches is 1 feet and 36 inches is 1 yard.

2. Multiply it so that both are inches.

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3. Add together $\frac{7x}{4} + 5y$

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3 years ago

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The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate

amid [387]

Answer:

It takes 7.37 hours for the size of the sample to double.

Step-by-step explanation:

Continuous exponential growth model:

The continuous exponential growth model for populations is given by:

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

In which P(0) is the initial population and r is the growth rate parameter, as a decimal.

Growth rate parameter of 9.4% per hour.

This means that $r = 0.094$

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

$P(t) = P(0)e^{0.094t}$

How many hours does it take for the size of the sample to double?

This is t for which P(t) = 2P(0). So

$P(t) = P(0)e^{0.094t}$

$2P(0) = P(0)e^{0.094t}$

$e^{0.094t} = 2$

$\ln{e^{0.094t}} = \ln{2}$

$0.094t = \ln{2}$

$t = \frac{\ln{2}}{0.094}$

$t = 7.37$

It takes 7.37 hours for the size of the sample to double.

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3 years ago