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
GenaCL600 [577]
3 years ago
11

statistical models predict that price p( in dollars) of a new smartphone will change according to the function p=900-4t^2. where

t is the number of months since january. which expression gives the.month t in terms of the price?

Mathematics
1 answer:
Gre4nikov [31]3 years ago
7 0

we are given

p=900-4t^2

where

price p( in dollars) of a new smartphone

t is the number of months since January

now, we can solve for t

step-1:

Add both sides by 4t^2

p+4t^2=900-4t^2+4t^2

p+4t^2=900

step-2:

Subtract both sides by p

p+4t^2-p=900-p

4t^2=900-p

step-3:

divide both sides by 4

\frac{4t^2}{4} =\frac{900-p}{4}

t^2=\frac{900-p}{4}

t^2=225-0.25p

step-4:

Take sqrt both sides

\sqrt{t^2} =\sqrt{225-0.25p}

t=\sqrt{225-0.25p}

so, we get

t=\sqrt{225-0.25p}..............Answer

You might be interested in
Alan is paying a dinner check but he was not sure how much he should tip for his bill of $27 and thirty-eight. if a standard tip
morpeh [17]
So you need to find 15% of $27.38. To do this you can multiply 27.38 * .15 and get 4.107. Round to $4.11 and this is the tip. The total bill would be $31.49
3 0
2 years ago
Read 2 more answers
The distance from Houston to
marissa [1.9K]

Answer:

distance from Houston to Galveston in  kilometers will be: 80km

Step-by-step explanation:

Given

The distance from Houston to  Galveston is about 50 miles.

i.e.

Kilometers in 1 Mile = 1.6 km

As the distance from Houston to  Galveston is about 50 miles, so

The distance from Houston to Galveston in  kilometers will be:

50(1.6) = 80   ∵ Kilometers in 1 Mile = 1.6 km

Therefore,

The distance from Houston to Galveston in  kilometers will be: 80km

8 0
2 years ago
Find the Number in Each Case
ipn [44]
It seems like you have the answer already. but heres how its calculated.
\frac{100}{15} = \frac{?}{3} 
so the missing number is 20 **cross multiply 100 and 3 to get 300 then divide 15 into 300 to get 20**

\frac{160}{100} =  \frac{80}{?} 
so the missing number is 50
 **cross multiply 100 and 80 to get 8000 then divide 160<span> into 8000 to get 50**</span>

 
6 0
3 years ago
Please help me if you can​
Mekhanik [1.2K]

Answer:

1)-9x^5 + 7x^2 + 3    2)  -2x2 • (x - 7)      3)  -23v^2 + 7v + 4    4) is just 7x

7 0
2 years ago
I need help on 11-16
alisha [4.7K]
I cant see all of 11 and 14
12:
3f = 18 \\   \frac{3f}{3}  =  \frac{18}{3}  \\ f = 6
13:
3f =  {3}^{2}  \\ 3f = 9 \\  \frac{3f}{3}  =  \frac{9}{3}  \\ f = 3
15:
3h = 9 + 10 \\ 3h = 19 \\  \frac{3h}{3}  =  \frac{19}{3}  \\ h = 6.3
16:
3f = 27 - 21 \\ 3f = 6 \\  \frac{3f}{3}  =  \frac{6}{3}   \\ f = 2
6 0
3 years ago
Other questions:
  • A confectioner has 300 pounds of a chocolate that is 1 part cocoa butter to 7 parts caramel. How much chocolate that is 1 part c
    7·1 answer
  • Having trouble with this answer help me 8-1/3x=16
    11·2 answers
  • The sum of two integers is -4. Can the two integers both be negative? Explain
    8·1 answer
  • 7 yd 2 feet = blank ft
    10·2 answers
  • In which quadrant is (1/2, -1.8)? Quadrant I Quadrant II Quadrant III Quadrant IV
    9·2 answers
  • Fred wants to but two teeshirt. The first shop sells them for £11.45 each and it is buy one get one half price. The second shop
    13·2 answers
  • a rancher is selling off 7% of her ranch each year. If she owns 2000 square miles, in about how many years will she own only 600
    9·1 answer
  • Tell me how to do this please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
    6·1 answer
  • A pair of hikers, 18 miles apart, begin at the same time to hike toward each other. If one walks at a rate that is 1 mph faster
    9·1 answer
  • A six-sided number cube is rolled, and then a spinner with 5 equal sections labeled A through E is spun.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!