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kykrilka [37]
3 years ago
10

Just number 4 pleaseeee

Mathematics
1 answer:
Aleksandr [31]3 years ago
7 0

Hello!

The formula is given to you. :)

C = 3.14 • D (diameter; line across a circle that cuts it in half)

C = 3.14 • 21 = 65.94 inches.

Hope I helped! Also, I hope I didn’t answer this too late. ;)

~Destiny ^_^

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salantis [7]

the answer above ^^^^

6 0
2 years ago
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In 2000, people charged 1,243 billion on the four most used types of credit cards. In 2005, people charged 1,838 billion on thes
baherus [9]
Alright, so the rate of change is the same thing as the slope, so we can find this by using the slope formula (which I took a picture of because it's super messy to type it out like this)

Now that we know the slope formula, we need to find the x values and the y values to plug into the equation. We'll say that the years are our x values and the money spent (in billions) are our y values. Now that we've set up an axis, we can create points! Our points would be (2000, 1243) and (2005, 1838)

Now we can plug our points into our equations! On the top of our equation, we'll put (1838-1243), and on the bottom we'll put (2005-2000). When we simplify that, we end up with 595/5, which simplifies to 119. Now we know that the rate of change for the credit cards was 119 billion!

4 0
2 years ago
Select ALL the correct answers.
skelet666 [1.2K]

Answer:

The statements that are true are:

  • 1.575 was the coffee yield , in thousands of kilograms,before the honeybees were introduced.
  • 1.16 represents the growth factor that reveals the rate at which the coffee yield increases.
  • 2 is the number of times the coffee yield was compounded per year.

Step-by-step explanation:

We are given a function that models The coffee yield, in thousands of kilograms, t years after the introduction of the honeybees.

Also, the coffee yield increases according to a model where the exponential change is compounded semiannually .

The function is given by:

f(t)=1.575(1.16)^{2t}

Here when t=0, i.e. before the honeybees were introduced we have:

f(0)=1.575

Also, the rate of increase i.e. the growth rate is denoted by : 1.16

Also, 2 represents the number of times the coffee yield is compounded per year.

8 0
3 years ago
What is the y-intercept of the line 3x – 7y = 42?
Allisa [31]

Answer:

(0, -6)

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

<em>m</em> - slope

<em>b</em> - y-intercept

Step 1: Write standard form

3x - 7y = 42

Step 2: Rewrite in slope-intercept form

  1. Subtract 3x on both sides: -7y = 42 - 3x
  2. Divide both sides by -7: y = -6 + 3/7x
  3. Rewrite: y = 3/7x - 6

Step 3: Find y-intercept

<em>b</em> = -6

8 0
2 years ago
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Masja [62]

Answer: i dont see a square

Step-by-step explanation:

3 0
2 years ago
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