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
Svetach [21]
3 years ago
9

I sleep at 10pm wake up at 6 am, how many hours did i sleep

Mathematics
1 answer:
Law Incorporation [45]3 years ago
7 0
You had 9 hours sleep.
You might be interested in
In 2011 a​ country's federal receipts​ (money taken​ in) totaled ​$2.31 trillion. In​ 2013, total federal receipts were ​$2.83 t
Gennadij [26K]

Answer:

Step-by-step explanation:

An exponential equation can be written in the form

y=a*b^x

where a is the initial condition and b is the growth/decay rate.  It's growth if the number is greater than 1 and it's decay if the number is less than 1 but greater than 0.  Our initial conditions are, in coordinate form where 2011 is year 0:

(0, 2.31) (2, 2.83)

Use those to find the equation for our situation.  Always start out with the coordinate that has a 0 as x, since anything raised to the power of 0 is equal to 1. So we begin with the coordinate (0, 2.31):

2.31=a*b^0 so

2.31 = a

Now we use that a value along with the x and y from the other coordinate to come up with our growth or decay rate:

2.83=2.31b^2

Divide both sides by 2.31 to begin to isolate the b:

\frac{2.83}{2.31}=b^2 and

b^2=1.225108225 so

b = 1.106846

That means that this is a growth rate (but you knew that already).

The equation then for this particular situation is:

y=2.31(1.106846)^x

That answers part a.

For part b, we will use that equation to find y when x = 4 (2015-2011 = 4):

y=2.31(1.106846)^4

Raise what's inside the parenthesis to the power of 4 to get:

y = 2.31(1.500889778) so

y = 3.47 trillion

For part c. we are looking for x when y = 10:

10=2.31(1.106846)^x

Divide both sides by 2.31 to get:

4.329004329=1.106846^x

Take the natural log of both sides to enable us to bring the x down front:

ln(4.329004329)=xln(1.106846)

Now divide both sides by the growth rate to get that

x = 14.434 or approximately 14 years after 2011 which is the year 2025.

8 0
3 years ago
Please someone help fast
Andru [333]

Answer:

Domain Is X

Step-by-step explanation:

Plot all the points in little circles in the column where the number is. Domain points are X values

plot the points, draw a line, since its linear add arrows to the ends

5 0
3 years ago
60 bricklayers began a 16-day project to build a castle. After five days, five of the bricklayers quit the job. If they work the
motikmotik
The concept of answer this item is the man-days equation. This means that the man-days of the original plan should be equal to that of the real activity. From the given,

           (60)(16) = (5)(60) + (11 + x)(60 - 5)

where x is the number of extra days that the bricklayers will still have to work to complete the job. The value of x from the equation is 1

Answer: 1
  
         
3 0
3 years ago
Solve the system of linear equations by elimination.<br><br> −2x+6y=−10<br> 4x+3y=5
svlad2 [7]

Answer: 2x+3y=5,4x+6y=10

Have a great day and remember to subscribe.!!

        -Lilly Ketchmen

7 0
3 years ago
Read 2 more answers
Y−6=4(x+5) what is the slope
garri49 [273]

Answer:

4 is the slope

Step-by-step explanation:

y−6=4(x+5)

This equation is in point slope form

y -y1 = m(x-x1)  where m is the slope and ( x1,y1) is a point on the line

4 is the slope and ( -5,6) is a point on the line

3 0
3 years ago
Other questions:
  • PLEASE HELP ME <br> *algebra 2*
    9·1 answer
  • Last month you spend 30 dollars this month you spend 140 percent of what you spend last month set up a proportion to model this
    14·1 answer
  • Find the least common denominator for these two rational expressions. x/x^2-25, c/x^2-3x-10
    6·1 answer
  • Identify the special name for ∠3 and ∠10
    6·1 answer
  • A man was traveling by air is allowed a maximum of 20kg luggages .The man has four bags weighing 3.5kg ,15 kg ,2kg and 1.5kg .Fi
    8·1 answer
  • Write an expression (Simplified) for the perimeter of the given figure.<br> PLS ANSWER ASAP
    9·1 answer
  • Please help me please!!
    13·1 answer
  • I really need help ​
    9·1 answer
  • 1. An object is accelerated at a rate of 5 m/s²? Find the mass of the object if the force exerted on it is 4 x 10⁵dynes. (Note:
    13·1 answer
  • At sunset the temperature was 4 dgrees. the next morning at sunset it was -7 degrees. what is the difference betweeen these temp
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!