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3 years ago

Use equal intervals to make a frequency table for the average number of movies per person. You do not need to show tally marks.

1 answer:

7 0

The frequency table would look something like this:

<u># countries | average # of movies
</u> 1 | 0-1
5 | 1-2
5 | 2-3
2 | 3-4
1 | 4-5

We set equal intervals for the number of movies. Then we count the frequency, or number of entries, for each interval.

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scoundrel [369]

For the first point, remember this simple rule: every exponential function $a^x$ always returns $a$ when evaluated at $x = 1$ . In fact, $a^1=a$ for every possible base $a$ .

So, we can see that the graph of the exponential passes through the point $(1,y)$ where $y$ appears to be between 1 and 2. So, the only feasible option would be $y = 1.8^x$ , because it passes throught the point $(1,1.8)$ because $f(1) = 1.8^1 = 1.8$ .

The other functions are wrong because:

$0.45^x$ would pass through $(1,0.45)$ , which would be between 0 and 1 on the y axis
$2.4^x$ would pass through $(1,2.4)$ , which would be between 2 and 3 on the y axis
$0.31^x$ would pass through $(1,0.31)$ , which would be between 0 and 1 on the y axis

As for the second question, you simply have to plug in the values: the function

$f(x) = 7^x$

means that you have to choose an input, x, and use it as exponent for 7. So, if you choose x=2, it means that you have to give exponent 2 to 7, i.e. you replace the x with the specific value, 2.

So, the expression becomes

$f(2) = 7^2 = 49$

7 0

4 years ago

What is the solution 2/3 a +6 > 0

RoseWind [281]

Answer:

a > -9

subtract 6 from both sides to get 2/3 a > -6. Then multiply both sides by 3 to get 2a > -18. Last, divide both sides by 2 to get your answer: a > -9

3 0

2 years ago

Read 2 more answers

The attendence at a water park varies directly as the temperature and invesely as the number of days of rain during the month. I

Margarita [4]

Let A be attendance, t the temperature and n the number of days. Then,
A $\alpha$ $\frac{t}{n}$
A=k $\frac{t}{n}$
Where k is a constant of proportionality;
If A=3200, T=88 and n=8, then k,
3200= $\frac{88k}{8}$
3200=11k
k= $\frac{3200}{11}$
Rewriting the equation and replacing the value of k,
A= $\frac{3200t}{11n}$
When t=92 and n=12
The A= $\frac{3200*92}{11*12}$
A= $\frac{294400}{132}$
A= 2231

5 0

3 years ago

If The quotient of three times a number and 4 is no more than 13.

alexandr1967 [171]

Answer:

3x + 4 ≤ 13

Step-by-step explanation:

6 0

4 years ago

I know one answer is C

SSSSS [86.1K]

Answer:

A&C

Step-by-step explanation:

As, you said, the first answer is C. Now, we are given seven, and when we are adding a negative number, we move in the direction of left, and since we are moving by 7, we would be moving 7 to the left. Therefore, the other answer is A.

7 0

3 years ago