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Aleksandr [31]
3 years ago
5

Determine the vertex of the parabola: y = 5x^2 - 20x + 13

Mathematics
2 answers:
choli [55]3 years ago
8 0

(1,8) im not really good at math but i think this is the answer

GuDViN [60]3 years ago
4 0
Tvbtvttvtvvtvtvtgtgtgtgtgt
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DJ Davon is making a playlist for work; he is trying to decide what 12 songs to play and in what order they should be played. If
Marta_Voda [28]

Answer:

3.63 * 10^19

Step-by-step explanation:

Given that :

Number of choices to select = 12

Category available :

Blues - 14

Country - 25

Disco - 21

To select an equal number of song for each category ; then 4 songs will be selected from each :

Using combination :

(14C4 * 25C4 * 21C4)

Since the order matters for the 12 selected songs ; it thus requires 12 permutation

Thus ;

(14C4 * 25C4 * 21C4) * 12!

nCr = n! / (n-r)!r!

Using calculator;

14C4 = 1001 ;

25C4 = 12650

21C4 = 5985

12! = 479001600

Hence,

(1001 * 12650 * 5985) * 479001600

= 36301596217286400000

=3.63 * 10^19

5 0
3 years ago
A store charges $1.25 per bathroom tile and lets you use their installation tools for free.Another store charges $0.75 per tile
padilas [110]

Answer:

100 tiles

Step-by-step explanation:

You would set up the equation like this.

1.25t=0.75t+50

Then, solve for t and it will show you how many tiles you will need to buy for it to be equal.

8 0
3 years ago
Anybody know the answer?
Wittaler [7]

Answer:

the answer is c

Step-by-step explanation:

5/8-3/8 is 1/4 + 2 is 2 1/4 then put into improper fraction

3 0
3 years ago
Read 2 more answers
if a 42.9ft tall flagpole casts a 253.1ft long shadow then how long is the shadow that a 6.2ft tall woman casts?
vovangra [49]
Set up a proportion.
flagpole/shadow = woman/her shadow.

f/s1 = w/s2
f = 42.9
s1 = 253 
w = 6.2 
s2 = ??? = x

42.9/253 = 6.2 / x
42.9 x = 253*6.2
42.9 x = 1568.6
x = 1568.6 / 42.9
x = 36.56 The womans shadow is 36.56 feet long <<<< ===== answer.
3 0
3 years ago
Cards with the numbers 1 through 50 are placed in a box and thoroughly shuffled. What is the probability of randomly selecting a
katrin2010 [14]

I think this is correct:

P (>10) = 10/50 = 1/5

P (x12) = 4/50 = 2/25.

hope it helps

3 0
3 years ago
Read 2 more answers
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