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nadya68 [22]
3 years ago
13

13. What is a simpler form of each product?

Mathematics
1 answer:
saul85 [17]3 years ago
7 0
13. (a-b)^2=a^2-2ab+b^2
   B is the answer
14. B is the answer
     ( x+9)(x-3)= x^2+6x-27
15. B is the answer
    (x+6)(x-5)=x^2+x-30
16. D is the answer
  (x-6y)(x-4y)=x^2-10xy+24y^2
17. C is the answer
(2x+5)(3x-4)=6x^2+7x-20
18. B is the answer
(5x+7)(x-2)=5x^2-3x-14

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Kate purchased a car for $23,000. It will depreciate by a rate of 12% a year. What is the value of the car in 4 years. *
Ivan

Answer:

$13,793

Step-by-step explanation:

Kate purchased a car for $23,000. It will depreciate by a rate of 12% a year. What is the value of the car in 4 years. *

The formula for Depreciation rate =

y = a(1 - r) ^t

Where

y = Value of the car after t years

a = Initial value of the car = $23,000

t= time in years = 4 years

r = Depreciation rate = 12% = 0.12)

y = $23000 (1 - 0.12)⁴

y = $13792.99328

Approximately = $13,793:

3 0
3 years ago
Hello! i'll mark the best answer brainliest (:
Contact [7]

I believe the answers are A. The account earns about 1.03% interest each year. and D. Tatiana's starting balance was $500.

I hope this helps

7 0
3 years ago
Your school has received a grant to upgrade the school library. The librarians used a random sample of 50 students from the enti
Mrac [35]
There will be 127 for each kid for a laptop
4 0
3 years ago
Read 2 more answers
Find center,foci, and vertices of ellipse (x+3)^2/21+(y-5)^2/25=1
sasho [114]
I don't know if we can find the foci of this ellipse, but we can find the centre and the vertices. First of all, let us state the standard equation of an ellipse. 

(If there is a way to solve for the foci of this ellipse, please let me know! I am learning this stuff currently.) 

\frac{(x-x_{1})^2}{a^2}+ \frac{(y-y_{1})^2}{b^2}=1

Where (x_{1},y_{1}) is the centre of the ellipse. Just by looking at your equation right away, we can tell that the centre of the ellipse is: 

(-3,5)

Now to find the vertices, we must first remember that the vertices of an ellipse are on the major axis. 

The major axis in this case is that of the y-axis. In other words, 

b^2>a^2 

So we know that b=5 from your equation given. The vertices are 5 away from the centre, so we find that the vertices of your ellipse are: 

(-3,10)
 & (-3,0)

I really hope this helped you! (Partially because I spent a lot of time on this lol) 

Sincerely,

~Cam943, Junior Moderator
6 0
3 years ago
What are the coordinates of the parallelogram? Write your answer as whole
RoseWind [281]

Answer:

(2.5,-0.5)

Step-by-step explanation:

6 0
2 years ago
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