1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tia_tia [17]
3 years ago
15

I need help Plz Help me thx

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
3 0
I think its the third one
You might be interested in
Which quadratic function in vertex form can be represented by the graph that has a vertex at (3, -7) and passes through the poin
mrs_skeptik [129]
The equation is y=-3/4(x-3)^2-7
6 0
2 years ago
Describe any domain restrictions that make sense for each of these scenarios: The price of a stock fluctuates several times thro
mrs_skeptik [129]

Answer:

  • a) Restriction: days of the year (a discrete time)

  • b) The time the ball is on the air: t = 0, until the balls touchs the ground (any real value from t = 0 to t when the ball hits the ground)

  • c) Any positive real value: x ≥ 0

Explanation:

The <em>domain </em>is the set of elements that can be inputs of the <em>function</em>.

<u><em>1. The price of a stock fluctuates several times throughout the year as a function of time.</em></u>

The input variable is the time through out the year.

If you assume that the fluctuaion is recorded once a day, and not every second, the logical assumption is that the time is a day of the year.

Thus, the restricion is the days of the year.

You could represent them in different forms, like DD/MM/YY, or even as a number from 1 to 365 if it covers just one year.

<u><em></em></u>

<u><em>2. A ball is hit into the air by a baseball player, rises until it reaches its highest point, and then falls into left field.</em></u>

The domain is the time the ball is on the air, which may be any real value from t = 0, until the balls touchs the ground.

It is not restricted to integer numbers.

<u><em>3. The volume of a spherical balloon increases as the balloon is blown up and decreases as air is let out of it.</em></u>

The inputs of the function are amounts of air, which may be measured as number of moles.

The number of moles can be any real value equal or greater than zero.

Thus, the domain is the positive real values x ≥ 0.

8 0
3 years ago
Read 2 more answers
Is the expression (x+5)(x+4) equivalent to x^2+9x+20 ?
quester [9]

Answer:

Yes

X×x =x^2

X×4and5=9x

5×4=20

4 0
2 years ago
HELP!!<br>What is the surface area?​
irakobra [83]

Answer:

10 & 5.5 is 20

and

6 & 5 is 11

3 0
2 years ago
Explain how to check multiplication using addition and division ñ. Include an example in your explanation.
ratelena [41]
Addition/Subtraction and. Multiplication/ Division ... So checking one operation with its opposite is a good way to help verify your answer.
5 0
3 years ago
Other questions:
  • T-19=2 as a one step
    5·1 answer
  • How would i write 2.318 with the 18 repeating? and how would i show my work?
    7·1 answer
  • Helpppppppppppppppppp
    13·1 answer
  • Which sequence of transformations maps triangle ABC onto triangle DEF
    13·1 answer
  • Which set of ordered pairs represents a function?
    6·2 answers
  • 64.3 - 3x 2 3 exponents divided 2
    8·1 answer
  • Can someone help with this question??
    9·2 answers
  • About 7% of the population has a particular genetic mutation. 400 people are randomly selected. Find the standard deviation for
    14·1 answer
  • Celeste hiked 1.8 miles in 0.75 hours.What is her average rate of speed?​
    7·1 answer
  • What is the perimeter of the rectangle?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!