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ohaa [14]
3 years ago
14

Which represents a function?

Mathematics
2 answers:
yan [13]3 years ago
8 0

Answer:

the one in the middle

Step-by-step explanation:

why because if you see the x axis when you go over it the one that has a funtion dosent have two of the same number but the one that dosent haves two of the same numbers

faltersainse [42]3 years ago
4 0

it is B because the x value does not repeat twice

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The diameter of the moon is 2,160 miles. A model has a scale of 1 in : 150 mi. What is the diameter of the model?
Charra [1.4K]

Answer:

The diameter of the model is 14.4 inches.

Step-by-step explanation:

The Diameter of the moon = 2,160 miles

The scale on the model represents 1 in = 150 miles

Let the model represents k inches in 2,160 miles.

So, by the Ratio of Proportionality:

\frac{1}{150}   = \frac{k}{2160}

⇒k = \frac{2160}{150} \\\implies k =  14.4

or, k = 14.4 inches

⇒On the scale 2160 miles is represented as 14.4 inches

    Hence the diameter of the model is 14.4 inches.

3 0
3 years ago
How many total roots are must there be in this function explain how you know<br> H(x)=x3-7x2-x+7
Leona [35]

Answer:

total 3 roots,

How do I know?:

put this function in graphing calculator

And if you don't have a graphing calculator, then calculate it out bu yourself:

(x + 1)(x − 1)(x − 7) = 0

3 0
4 years ago
(3k^3+4k^2-2)-(5k^2-9)-(7k^3+6k)
mr Goodwill [35]

Answer:

− 4 k3− k 2− 6 k+7

Step-by-step explanation:

I just simplified the expression.

4 0
3 years ago
What is -11/10 divided by -1/4 times -40/19? Show your work
elena-14-01-66 [18.8K]
I hope this helps you!

3 0
3 years ago
ABC Insurance offers an annuity with 4.5% APR for the next 5 years. You decide to invest $1000 each year into this account. What
kipiarov [429]

Answer:

Ordinary annuity

Step-by-step explanation:

Given : ABC Insurance offers an annuity with 4.5% APR for the next 5 years. You decide to invest $1000 each year into this account.

To find : What type of annuity is this?

Solution :

Annuity is the form of insurance in which some of the money is paid each year to secure for future.

There are two types of annuity:

Ordinary annuity - In this annuity the payment is made at the end of each period  over a fixed length of time. Also in this annuity payments are made monthly, quarterly, semi-annually or annually.

Annuity due - is the opposite of ordinary annuity as in this the payment is made at the beginning of each period.

In the given situation the annuity is ordinary annuity because the investment is done each year for 5 years.


7 0
3 years ago
Read 2 more answers
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