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Marrrta [24]
2 years ago
15

The patient recovery time from a particular surgical procedure

Mathematics
1 answer:
Lana71 [14]2 years ago
5 0
I think the answer is a but I’m not sure
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<img src="https://tex.z-dn.net/?f=%5Clarge%5Csf%5Cfbox%5Cred%7BQuestion%3A-%7D" id="TexFormula1" title="\large\sf\fbox\red{Quest
tamaranim1 [39]

Answer:

  • The function is injective but nor surjective

Step-by-step explanation:

<u>We see that:</u>

  • f(x) = x³

<u>For any x₁ and x₂ ∈ N, </u>

  • f(x) = x₁³ = x₂³ ⇒ x₁ = x₂, both are natural numbers

It it confirmed one-to-one, hence it is injective

<u>Check the surjectivity:</u>

f(x) = y ∈ N

  • x³ = y
  • y = ∛x

<u>Let y = 2, then:</u>

  • 2 = x³
  • x = ∛2 ∉ N

Since x is not natural, the function is not surjective

6 0
2 years ago
Read 2 more answers
What is the correct classification of 7x2 + 9x + 4? Select one of the options below as your answer:A. monomial B. binomial C. tr
nikitadnepr [17]
The answer is C. Trinomail
7 0
3 years ago
You are selling lemonade for $1.50, a bag of kettle corn for $3, and a hot dog for $2.50 at a fair. Write and simplify an expres
kozerog [31]

Answer:

1.5p + 3p + 2.5p

Step-by-step explanation:

This expression, 1.5p + 3p + 2.5p, will represent the amount of money received when p people buy one of each food item.

Since the price of each is the coefficient for p, this will represent how much money will be gained from each food item. All 3 terms will be added together to represent the total amount of money gained from selling all 3 items.

4 0
3 years ago
the waiter places a bowl of soup in front of lacy in a counterclockwise direction she passes the soup 90° the person receiving t
dybincka [34]

haifia is the answer did it on test

5 0
3 years ago
The numbers on a football field indicate 10 yard increments. You walk around the perimeter of a football field between the pylon
Roman55 [17]

Answer:

5,333 square yards.

Step-by-step explanation:

Football fields have standard 100 yards length, if you walk the perimeter of a football field you will walk the twice the length and twice the width. Therefore, the width of the field can be found as follows:

306.667 = 2L +2W\\W = \frac{306.667 - 2*100}{2} \\W= 53.33

The area of the playing field is the product of the length by the width

A = L*W\\A= 100*53.33\\A=5333

The area of the playing field is 5,333 square yards.

5 0
3 years ago
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