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3 years ago

I has happiness, now is depressed now happiness agen. please answer, sorry. I'm weird, Thank you!

Mathematics

2 answers:

Harrizon [31]3 years ago

7 0

Answer:

3x5+4x2-4=19

Step-by-step explanation:

dont be sad ok :D

USPshnik [31]3 years ago

5 0

Answer:

the answer for the thing there is X

Step-by-step explanation:

because is you multiply 3 by 5 you get 15 and then you add 15 with 4 and get 19. after you get 19 you multiply that by 2 and get 23 and then you subtract that by 4 and get 19 as your answer.

Hope this helped

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Graph each linear equation y equals negative 3x - 2

den301095 [7]

Answer: y=-(3x-2)= -3x+2

The intercept with y is 2

The intercept with x is 2/3

4 0

3 years ago

Read 2 more answers

A freshly inoculated bacterial culture of Streptococcus contains 100 cells. When the culture is checked 60 minutes later, it is

Luba_88 [7]

Answer:

$P(t) = 100e^{0.0251t}$

The doubling time is of 27.65 minutes.

Step-by-step explanation:

Exponential equation of growth:

The exponential equation for population growth is given by:

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

In which P(0) is the initial value and k is the growth rate.

A freshly inoculated bacterial culture of Streptococcus contains 100 cells.

This means that $P(0) = 100$ . So

$P(t) = 100e^{kt}$

When the culture is checked 60 minutes later, it is determined that there are 450 cells present.

This means that $P(60) = 450$ , and we use this to find k. So

$450 = 100e^{60k}$

$e^{60k} = 4.5$

$\ln{e^{60k}} = \ln{4.5}$

$60k = \ln{4.5}$

$k = \frac{\ln{4.5}}{60}$

$k = 0.0251$

$P(t) = 100e^{0.0251t}$

Doubling time:

This is t for which P(t) = 2P(0) = 200. So

$200 = 100e^{0.0251t}$

$e^{0.0251t} = 2$

$\ln{e^{0.0251t}} = \ln{2}$

$0.0251t = \ln{2}$

$t = \frac{\ln{2}}{0.0251}$

$t = 27.65$

The doubling time is of 27.65 minutes.

7 0

3 years ago

Please answer thank you

Naddika [18.5K]

Answer:

Step-by-step explanation:

they are opposite angles, same value of 45°

6 0

3 years ago

Please help me with my work

Alexxandr [17]

Answer:

1) -1/4

2) -1/2

3) 1/3

Step-by-step explanation:

perpendicular lines' slopes are opposite reciprocals so you flip it and change the positive or negative sign

parallel lines have the same slope

3 0

3 years ago

Simplify the following expression.<br><br><br> A. <br><br> B. <br><br> C. <br><br> D.

Dahasolnce [82]

Answer:

Step-by-step explanation:

Let's start by crossing everything out!

12/3 can be crossed out to 4.

a^3/a^2 can be crossed out to a.

b^6/b^4 can be crossed out into b^2.

c^5/c^5 is just 1.

So which the results we got, we can multiply them, so that it is 4ab^2.

4ab^2 is our final answer!

5 0

2 years ago