Ask question

Ask question

All categories

2 years ago

13

32) Out of 525 people surveyed, 210 answered yes. Estimate how many people would answer yes if 900

1 answer:

allsm [11]2 years ago

8 0

Answer:

360 people

Step-by-step explanation:

$\frac{ 210}{525}*900$ $=360$

Hope this helped! :)

You might be interested in

Which plot is located at (-3, -2)<br><br> Please help!!!

DaniilM [7]

The is answer E, you have to search for -3 in the x line than search for -2 in the y line

7 0

3 years ago

Read 2 more answers

Function f is an exponential function. It predicts the value of a famous painting, in thousands of dollars, as a function of the

nalin [4]

Answer:

$y=8 \cdot (\frac{5}{4})^x$

$f(x)=8 \cdot (\frac{5}{4})^x$

or

$f(x)=8 \cdot (1.25)^x$

Step-by-step explanation:

We are going to see if the exponential curve is of the form:

$y=a \cdot b^x$ , ( $b\neq 0$ ).

If you are given the $y-$ intercept, then $a$ is easy to find.

It is just the $y-$ coordinate of the $y-$ intercept is your value for $a$ .

(Why? The $y-$ intercept happens when $x=0$ . Replacing $x$ with 0 gives $y=a \cdot b^0=a \cdot 1=a$ . This says when $x=0 \text{ that} y=a$ .)

So $a=8$ .

So our function so far looks like this:

$y=8 \cdot b^x$

Now to find $b$ we need another point. We have two more points. So we will find $b$ using one of them and verify for our resulting equation works for the other.

Let's do this.

We are given $(1,10)$ is a point on our curve.

So when $x=1$ , $y=10$ .

$10=8 \cdot b^1$

$10=8 \cdot b$

Divide both sides by 8:

$\frac{10}{8}=b$

Reduce the fraction:

$\frac{5}{4}=b$

So the equation if it works out for the other point given is:

$y=8 \cdot (\frac{5}{4})^x$

Let's try it. So the last point given that we need to satisfy is $(2,12.5)$ .

This says when $x=2$ , $y=12.5$ .

Let's replace $x$ with 2 and see what we get for $y$ :

$y=8 \cdot (\frac{5}{4})^2$

$y=8 \cdot \frac{25}{16}$

$y=\frac{8}{16} \cdot 25$

$y=\frac{1}{2} \cdot 25}$

$y=\frac{25}{2}$

$y=12.5$

So we are good. We have found an equation satisfying all 3 points given.

The equation is $y=8 \cdot (\frac{5}{4})^x$ .

4 0

3 years ago

(6ab-8a+8) - (7ab-1 )

PSYCHO15rus [73]

Answer:

$- ab - 8a + 9$

Step-by-step explanation:

$(6ab - 8a + 8) - (7ab - 1) \\ 6ab - 8a + 8 - 7ab + 1 \\ - ab - 8a + 9$

hope this helps you.

4 0

3 years ago

Read 2 more answers

Find the solution set of the inequality<br> 35- 4x > 2

Orlov [11]

35-4x>2
-4x>2-35
-4x>-33
-x>-33/4
x<33/4 (x<8.25)

Solution: x<8.25. or x∈(-∞ , 8.25)

3 0

3 years ago

Your friend is purchasing an umbrella with a slant height of 4 feet. There are a variety of such umbrellas to choose from.

Dafna1 [17]

C but confirm it with your teacher

7 0

4 years ago