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3 years ago

What is the constant of y= 3/4x ??

Mathematics

1 answer:

Xelga [282]3 years ago

5 0

the constant is -4 because Y is proportional to x

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I need help please and thank you!

ziro4ka [17]

Answer:

v is 198 m/s

Step-by-step explanation:

$v = \sqrt{gh} \\ v = \sqrt{9.8 \times 4000} \\ v = 198 \: m {s}^{ - 1}$

8 0

3 years ago

☆15 POINTS AND MARKED BRAINLIEST IF CORRECT☆ look at the image above to view the question!

swat32

Answer:

3125 bacteria.

Step-by-step explanation:

We can write an exponential function to represent the situation.

We know that the current population is 100,000.

The population doubles each day.

The standard exponential function is given by:

$P(t)=a(r)^t$

Since our current population is 100,000, a = 100000.

Since our rate is doubling, r = 2.

So:

$P(t)=100000(2)^t$

We want to find the population five days ago.

So, we can say that t = -5. The negative represent the number of days that has passed.

Therefore:

$\displaystyle P(-5)=100000(2)^{-5} = 100000 \Big( \frac{1}{32}\Big) = 3125 \text{ bacteria}$

However, we dealing within this context, we really can't have negative days. Although it works in this case, it can cause some confusion. So, let's write a function based on the original population.

We know that the bacterial population had been doubling for 5 days. Let A represent the initial population. So, our function is:

$P(t)=A(2)^t$

After 5 days, we reach the 100,000 population. So, when t = 5, P(t) = 100000:

$100000=A(2)^5$

And solving for A, we acquire:

$\displaystyle A=\frac{100000}{2^5}=3125$

So, our function in terms of the original day is:

$P (t) = 3125 (2)^t$

So, it becomes apparent that the initial population (or the population 5 days ago) is 3125 bacteria.

3 0

3 years ago

Read 2 more answers

I need to find the area below! HELP!

Evgen [1.6K]

Area of the square: 8x7 = 56
Base of triangle: 3+8+3 = 14
Height of triangle: 12-7 = 5
Area of triangle: 1/2(14)(5) = 35
Area of both: 56 + 35 = 91 in.

6 0

3 years ago

Can smbody help me out?

Alex777 [14]

Answer:

C. 30(-2)= -60 is the correct answer

Step-by-step explanation:

3 0

3 years ago

2u - 17 = 11 solve for u simplify your answer as much as possible

puteri [66]

Answer:

u = 14

Step-by-step explanation:

2u - 17 = 11

add 17 to both sides:

2u - 17 + 17 = 11 + 17

2u = 28

divide both sides by 2:

2u/2 = 28/2

u = 14

4 0

1 year ago