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BARSIC [14]
3 years ago
15

The vertex of this parabola is at (3, -2). When the x-value is 4, the y-value is 3. What is the coefficient of the squared expre

ssion in the parabola's equation?
Mathematics
2 answers:
user100 [1]3 years ago
5 0
Hello :
<span>the parabola's equation is : f(x) = a(x-3)²-2
</span><span>the coefficient of the squared expression in the parabola's equation is : a
but ; f(4) = 3
3 = a(4-3)²-2
a-2=3.....a=5
f(x) = 5(x-3)²-2</span>
neonofarm [45]3 years ago
3 0

Answer:

5

Step-by-step explanation:

I answered the question and got it right

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mr. Lee's classroom has 966 markers. his 28 students need to share them equally so everyone can work on an art project how many
Flauer [41]
For this question, you would need to divide 966 by 28, which gives us 35.6. However, we cannot have 3/5ths of a marker, so to be fair to all the kids, they would each get 35 markers. Hope this helps
4 0
3 years ago
A submarine started 20 feet below sea level. It is now 10 feet below sea level. Which integer represents its change in depth?
Allushta [10]

Answer:

d -10 is the answer mark brainliest if im right

Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
in the game of hearts, four players are each dealt 13 cards from a deck of 52. is this a function? if so, what are the domain an
skelet666 [1.2K]

Based on the fact the game of hearts, four players are each dealt 13 cards from a deck of 52

  • The domain is the deck of 52 cards
  • codomain is 4 players
  • function, f(k) maps a card to each player
  • It is surjective

This is further explained below.

<h3>What is a surjective Function?</h3>

A surjective function is a kind of function that exists in mathematics that ensures that any element y may be transferred to element x in such a way that f(x) equals y.

To put it another way, each element that makes up the function's codomain is the mirror image of at least one element that makes up the domain.

Generally, function, f(k) maps a card to each player

And since each player is dealt 13 cards st 13 of the cards are mapped to each player.

It is a function as one card is mapped to one and only one player.

The function is not injective because 13 cards 1 are mapped to one player so it is a many-one function but the injective function does not map two elements to a common clement.

In conclusion, It is surjective as each player is dealt 13 cards. the function is not injective hence rot bijective.

Read more about surjective

brainly.com/question/13423972

#SPJ1

5 0
9 months ago
What is the surface area of the figure? Use 3.14 for π....PLEASE HELP....NEED HELP ASAP
raketka [301]

Answer:

Step-by-step explanation:

Always use your imaginary scissor:

Cut the above and below circle and the cylinder  role it down-ways like a carpet and you will end up with two circles and a big rectangular.

Surface circle: 7 * 7 * 3,14 = 153.86

Surface carpet: 20 * circle exterior (or the length of the circle)= 20 * 2* 3.14 * 7

Results:

153, 86 * 2 (because we cut 2 circles from the cylinder) + 132,6 = 439.6

Answer: A

3 0
2 years ago
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A blueprint of a plot of land has a scale of 1 1/2 cm to m. The length of land measures 15 cm on the blueprint. If l represents
spayn [35]

Answer: l = 82.5m

Step-by-step explanation:

11/2 x 15 = 82.5

6 0
3 years ago
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