8 - (-4) answer this integers! Show you work please

Pls help (probability)

9966 [12]

Answer:

315/1200 = 63/240 = 21/80 = 0.2625 = 26.25%

Step-by-step explanation:

8 0

3 years ago

Plz help if you have time too

NemiM [27]

Answer:

SL = KR

Step-by-step explanation:

We're given two different lengths, both of which are on other sides of KL. Now, since these two givens are congruent, and we're overlapping it over a new line, the lines SL and KR are going to be congruent.

4 0

3 years ago

An advertising company designs a campaign to introduce a new product to a metropolitan area of population 3 Million people. Let

Advocard [28]

Answer:

$P(t)=3,000,000-3,000,000e^{0.0138t}$

Step-by-step explanation:

Since P(t) increases at a rate proportional to the number of people still unaware of the product, we have

$P'(t)=K(3,000,000-P(t))$

Since no one was aware of the product at the beginning of the campaign and 50% of the people were aware of the product after 50 days of advertising

We have and ordinary differential equation of first order that we can write

$P'(t)+KP(t)= 3,000,000K$

The <em>integrating factor </em>is

$e^{Kt}$

Multiplying both sides of the equation by the integrating factor

$e^{Kt}P'(t)+e^{Kt}KP(t)= e^{Kt}3,000,000*K$

Hence

$(e^{Kt}P(t))'=3,000,000Ke^{Kt}$

Integrating both sides

$e^{Kt}P(t)=3,000,000K \int e^{Kt}dt +C$

$e^{Kt}P(t)=3,000,000K(\frac{e^{Kt}}{K})+C$

$P(t)=3,000,000+Ce^{-Kt}$

But P(0) = 0, so C = -3,000,000

and P(50) = 1,500,000

so

$e^{-50K}=\frac{1}{2}\Rightarrow K=-\frac{log(0.5)}{50}=0.0138$

And the equation that models the number of people (in millions) who become aware of the product by time t is

$P(t)=3,000,000-3,000,000e^{0.0138t}$

5 0

4 years ago

PLEASE HELP!!!! Rewrite the rational exponent as a radical by extending the properties of integer exponents. 2 to the 3 over 4 p

Olenka [21]

Whenever you have a number raised to a fraction, you can easily convert it to radical form.

The bottom half of the fraction (or the denominator) tells you what root you are finding. For example, if you have a 2 for the denominator, you are finding the square root (2). And if you have a 3, you are finding the cube root (3).

The top half of the fraction (or the numerator) tells you to what power the number inside the radical is being raised. For example, if you have a 2 for the numerator, you are squaring the number. If you have a 3, you are raising it to the third power.

In your case, you have 2 raised to the 3/4 power divided by 2 raised to the 1/2 power. Let's start with the top half.

2 raised to the 3/4 power - The denominator is a 4, so you are finding the fourth root of the 2. And since you have a 3 for the numerator, the 2 is raised to the 3rd power. So, the top expression is simplified as the fourth root of 2 cubed.

Now the bottom half. 2 raised to the 1/2 power - the denominator is 2, so you are finding the square root of the 2. And with one being the numerator, you don't have to worry - the two stays the same. So, it is simplified as the square root of two.

I've attached a picture of the expression so you can better understand what I mean. I hope this helps. :D

7 0

3 years ago

Graph the direct variation equation. y=9x

4vir4ik [10]

Use the slope 9 and then go through (0,0)

7 0

3 years ago