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
daser333 [38]
3 years ago
13

Which of the following ways can be used to determine whether a linear relationship is proportional? Select all that apply.

Mathematics
1 answer:
svetlana [45]3 years ago
6 0

Answer:

I think its b

Step-by-step explanation:

Sorry if im wrong :(

You might be interested in
PLEASE help me simplify this distributive property question
Lorico [155]
The number of years is 3 because 6612 divided by 58 is 114 and 114-111=3...
3 0
3 years ago
A driver descended to a depth of -65 feet in 5 minutes. If she descended at the same rate each minute, what’s the rate?
Sidana [21]
This is an easy one. 

65/5= 13.

Therefore, she descended 13 feet per minute.
7 0
3 years ago
Demand for Tablet Computers The quantity demanded per month, x, of a certain make of tablet computer is related to the average u
soldier1979 [14.2K]

x = f ( p ) = \frac { 100 } { 9 } \sqrt { 810,000 - p ^ { 2 } } } \\\\ \qquad { p ( t ) = \dfrac { 400 } { 1 + \dfrac { 1 } { 8 } \sqrt { t } } + 200 \quad ( 0 \leq t \leq 60 ) }

Answer:

12.0 tablet computers/month

Step-by-step explanation:

The average price of the tablet 25 months from now will be:

p ( 25) = \dfrac { 400 } { 1 + \dfrac { 1 } { 8 } \sqrt { 25 } } + 200 \\= \dfrac { 400 } { 1 + \dfrac { 1 } { 8 } \times 5 } + 200\\\\=\dfrac { 400 } { 1 + \dfrac { 5 } { 8 } } + 200\\p(25)=\dfrac { 5800 } {13}

Next, we determine the rate at which the quantity demanded changes with respect to time.

Using Chain Rule (and a calculator)

\dfrac{dx}{dt}= \dfrac{dx}{dp}\dfrac{dp}{dt}

\dfrac{dx}{dp}= \dfrac{d}{dp}\left[{ \dfrac { 100 } { 9 } \sqrt { 810,000 - p ^ { 2 } } }\right] =-\dfrac{100}{9}p(810,000-p^2)^{-1/2}

\dfrac{dp}{dt}=\dfrac{d}{dt}\left[\dfrac { 400 } { 1 + \dfrac { 1 } { 8 } \sqrt { t } } + 200 \right]=-25\left[1 + \dfrac { 1 } { 8 } \sqrt { t } \right]^{-2}t^{-1/2}

Therefore:

\dfrac{dx}{dt}= \left[-\dfrac{100}{9}p(810,000-p^2)^{-1/2}\right]\left[-25\left[1 + \dfrac { 1 } { 8 } \sqrt { t } \right]^{-2}t^{-1/2}\right]

Recall that at t=25, p(25)=\dfrac { 5800 } {13} \approx 446.15

Therefore:

\dfrac{dx}{dt}(25)= \left[-\dfrac{100}{9}\times 446.15(810,000-446.15^2)^{-1/2}\right]\left[-25\left[1 + \dfrac { 1 } { 8 } \sqrt {25} \right]^{-2}25^{-1/2}\right]\\=12.009

The quantity demanded per month of the tablet computers will be changing at a rate of 12 tablet computers/month correct to 1 decimal place.

8 0
3 years ago
-15= z/-2 answer please?​
faust18 [17]

Answer:

30

Step-by-step explanation:

-15=\frac{z}{-2}\\\\(-15)(-2)=z\\\\30=z

4 0
3 years ago
Given (-2, 4) (1, -2). Find the slope of the line
gavmur [86]

Answer:

-2

Step-by-step explanation:

We can find the slope of a line given two points from

m = (y2-y1)/(x2-x1)

    = (-2-4)/(1--2)

    = (-6)/(1+2)

    =-6/3

    =-2

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the LCM of 40 and 15?
    8·2 answers
  • Sam and David were selling bottles to raise money for a 6th grade pizza party. Sam sold 5 water bottles for every three water bo
    10·1 answer
  • Write the number in to other forms: 0.326
    9·2 answers
  • Can someone please help me , I really need it
    15·1 answer
  • Which expression is equivalent to (7 to the 3rd exponent)-2 exponent?
    15·1 answer
  • The product of any fraction and 1/6 will always be less than 1?
    12·1 answer
  • Can you please help me answer this quest6
    11·1 answer
  • Aro diagrams his river rafting trip, estimating the time it will take him to paddle upstream against the current, and then back
    10·2 answers
  • How much interest does a $482 investment earn at 5% over three years
    10·1 answer
  • The length of a river is 480km. What is its length on a map with a scale 1 : 5,000,000?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!