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
leonid [27]
4 years ago
14

PLSSS HELP MARKING BRAINLIST QUESTION BELOW

Mathematics
1 answer:
Nadya [2.5K]4 years ago
5 0

Answer:

The third answer. ( John's boat was farther from the deck at the beginning but Roberta's boat traveled more quickly)

Step-by-step explanation:

You already know that in the beginning John's boat begins 20 miles  from the dock. Now you need to find Roberta! When each boat begins from the dock, it means when x=0. So lets insert that! y= 6(0)+15. You get 15. Now you know that its either the 3rd or 4th answer.  The second piece of info you have for John is that it is 45 miles from the dock after 5 hours. Again, in the beginning it started with 20 miles. 45-20= 25 miles TRAVELED in 5 hours.  For Roberta, we need to insert 5 in the equation for x. y=6(5)+15. You get: 45 again! But... Roberta started at 15 miles. So 45-15 is 30 miles. She traveled 30 miles in 5 hours. The only answer that is matching to our problem solving is the third answer. Hope this helps!

You might be interested in
Graph the function and analyze it for domain, range, continuity, increasing or decreaseing behavior, symmetry, boundedness, extr
Sunny_sXe [5.5K]

Answer:

f(x) = 3 \cdot 0.2^x

Step-by-step explanation:

f(x) = 3 \cdot 0.2^x


Domain of f: "What values of x can we plug into this equation?" This makes sense for all real numbers so the domain is \mathbb{R}

Range of f: "What values of f(x) can we get out of the function?" From the graph we see we can get any real number greater than 0 out of the function by choosing a suitable x-value in the domain. The range is therefore (0, \infty).

Continuity: Since the graph is one, unbroken curve (i.e. a curve that can be drawn in one movement without taking your pen off the paper). We see that "roughly speaking" the function is continuous.

Increasing or decreasing behaviour: For all x in the domain, as x increases, f(x) decreases. This means the function exhibits decreasing behaviour.

Symmetry: It is clear to see the graph of f(x) has no symmetry.

Boundedness: Looking at the graph we see it is unbounded above as when we choose negative values, the graph of f(x) explodes upwards exponentially. Choose a value of x, plug it in, next choose (x-1), plug this in and we observe f(x-1) > f(x) for all x in the domain.

The function is however bounded below by 0: no value of x in the domain exists which satisfies f(x) < 0.

Extrema: As far as I can tell, there are no turning points on the curve. (Is this what you mean by extrema?)

Asymptotes: Contrary to the curve's appearance, there are no vertical asymtotes for this curve. The negative-x portion of the curve is just growing so quickly it appears to look like an asymptote. There is a value of f(x) for all x<0. There is however a horizontal asymtote: y=0.

End behaviour: As x \rightarrow \infty, f(x) \rightarrow 0. As x \rightarrow -\infty, f(x) \rightarrow +\infty

5 0
3 years ago
What point is on the graph of every direct variation equation
Alexeev081 [22]
Answer: The point (0,0)
This point is also known as the origin

The reason why is because every direct variation equation is of the form y = k*x
where k is some fixed number

If we plugged in x = 0 it leads to y = k*x = k*0 = 0. So (x,y) = (0,0)
4 0
3 years ago
How to find maximum and minimum values of a parabola
Arturiano [62]

Answer:

Step-by-step explanation:

Finding max/min: There are two ways to find the absolute maximum/minimum value for f(x) = ax2 + bx + c: Put the quadratic in standard form f(x) = a(x − h)2 + k, and the absolute maximum/minimum value is k and it occurs at x = h. If a > 0, then the parabola opens up, and it is a minimum functional value of f.

4 0
2 years ago
How are you feeling now and how do you know it?
slava [35]

i feel tired but im okay

thoughts usually come from our mind but out heart choices those options

something that makes you think you can try or do and wont hesitate for

right possibly what makes you happy and wrong which makes others hurt or just something that doesn't feel right

mostly everything

you are genuinely happy with you're life

complicated for sure , that's just the way life is

people's inventions

nothing actually

not running away

yeah , wish I wasn't

trauma , parents , 'humans'

we remind ourselves our past to change but it just makes us worse

5 0
3 years ago
5 ) ( 8 x 10 - 82 ) - 8​
juin [17]

Answer:

16

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • The length of a rectangle is twice its width. the perimeter of the rectangle is 90 cm. what are the length and width?
    10·1 answer
  • How are the values of the eights related in 880?
    5·1 answer
  • A quickie. If n identical dice are rolled, number of possible outcomes are?
    9·1 answer
  • 4 The rate of compound interest is 7.5%. How long will it take for an investment of $4500 to
    5·1 answer
  • What is the answer to this equation ... 3 + 2c + 5c + 2 ??
    15·2 answers
  • Please make it quick
    11·2 answers
  • Choose the correct description of the pattern below. Then find the next 3 number
    9·1 answer
  • Where is the point (2,-6) located in the coordinate plane? A. In quadrant 1 B. On the y-axis C. In quadrant III D. In quadrant I
    11·1 answer
  • Drag values to complete each equation.
    13·2 answers
  • What is the perimeter, in units of a polygon with vertices located at (-7, -3), (-7, 4) , (6, -3), and (6, 4)?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!