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
nydimaria [60]
3 years ago
13

PLEASE HELP WILL MARK BRAINLIEST!!!!! +20 POINTS only answer number 25.

Mathematics
1 answer:
natima [27]3 years ago
5 0

Answer:

the one up: 21

the one down: 16

You might be interested in
You're making deliveries and can travel 484 miles on 22 gallons of gas. How far can
baherus [9]
836, because 484 divided by 22 is 22, so each gallon can do 22 miles. 38 times 22 is 836.
3 0
3 years ago
Y=x^2+8<br> Find the Domain, explain your answer
alekssr [168]

Step-by-step explanation:

look at the attachment above ☝️

3 0
2 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
If a population is known to be normally distributed, what can be said of the sample distribution of the sample mean drawn from t
belka [17]
That they are diffrent type of numbers
8 0
3 years ago
Graph the system of equations on your graph paper to answer the question. {y=−x+3
makkiz [27]
The answer is (x, y) = (-1, 4) hope this helped

5 0
3 years ago
Other questions:
  • About 1 liter of water is left in this water cooler. What is the best estimate of how much water in the cooler when it was full
    15·1 answer
  • Complete: 3/4 x 20 = 5/6 x ?
    10·2 answers
  • What is the sixth number in this sequence? 147,128,109
    10·2 answers
  • Are DEF and RPQ Congruent?
    5·2 answers
  • Please help!!! 25 points!!
    11·1 answer
  • Find the greatest common divisor of 63 and 42
    11·1 answer
  • You just found a positive trend line showing a strong relationship between homework scores and test scores for five students. Ex
    8·2 answers
  • What is 819021 in expanded form?
    5·2 answers
  • Please answer! yes I'll mark as brainliest​
    13·2 answers
  • Which equation provides the best estimate of the product of 229 and 3.22?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!