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
AnnyKZ [126]
3 years ago
15

How do I find the x-intercept to this? 9x + 12y= 36

Mathematics
2 answers:
Wewaii [24]3 years ago
4 0
You can simply put the equation as 9x = 36 and divide by 9, then x = 4
erastovalidia [21]3 years ago
3 0

Answer:

4

Step-by-step explanation:

the x-intercept is where y = 0 so you input 0 for y. It then becomes 9x = 36 so to find x its 39 divided by 9 which is 4 so the x intercept is 4

You might be interested in
Two different radioactive isotopes decay to 10% of their respective original amounts. Isotope A does this in 33 days, while isot
Andrews [41]

Answer:

The approximate difference in the half-lives of the isotopes is 66 days.

Step-by-step explanation:

The decay of an isotope is represented by the following differential equation:

\frac{dm}{dt} = -\frac{t}{\tau}

Where:

m - Current mass of the isotope, measured in kilograms.

t - Time, measured in days.

\tau - Time constant, measured in days.

The solution of the differential equation is:

m(t) = m_{o}\cdot e^{-\frac{t}{\tau} }

Where m_{o} is the initial mass of the isotope, measure in kilograms.

Now, the time constant is cleared:

\ln \frac{m(t)}{m_{o}} = -\frac{t}{\tau}

\tau = -\frac{t}{\ln \frac{m(t)}{m_{o}} }

The half-life of a isotope (t_{1/2}) as a function of time constant is:

t_{1/2} = \tau \cdot \ln2

t_{1/2} = -\left(\frac{t}{\ln\frac{m(t)}{m_{o}} }\right) \cdot \ln 2

The half-life difference between isotope B and isotope A is:

\Delta t_{1/2} = \left| -\left(\frac{t_{A}}{\ln \frac{m_{A}(t)}{m_{o,A}} } \right)\cdot \ln 2+\left(\frac{t_{B}}{\ln \frac{m_{B}(t)}{m_{o,B}} } \right)\cdot \ln 2\right|

If \frac{m_{A}(t)}{m_{o,A}} = \frac{m_{B}(t)}{m_{o,B}} = 0.9, t_{A} = 33\,days and t_{B} = 43\,days, the difference in the half-lives of the isotopes is:

\Delta t_{1/2} = \left|-\left(\frac{33\,days}{\ln 0.90} \right)\cdot \ln 2 + \left(\frac{43\,days}{\ln 0.90} \right)\cdot \ln 2\right|

\Delta t_{1/2} \approx 65.788\,days

The approximate difference in the half-lives of the isotopes is 66 days.

4 0
3 years ago
Read 2 more answers
Use the properties of operations to write an<br> expression equivalent to:<br> 4x + 1/2 + 2x - 3
NikAS [45]

Answer:

6x * 1/2 - 3 (* means multiplying)

Step-by-step explanation:

In this problem, you are using communitive property and so you are just changing the problem to an equal situation.

4 0
2 years ago
Read 2 more answers
The solution to -16 + x = -30 is -14.<br><br><br> True False
11111nata11111 [884]

Answer:

false

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Given the point (-7, 9), what would the coordinates be after that point was translated 4 units up? ( _ , _ )
Alex787 [66]
The Answer = (-7, 13)
6 0
3 years ago
Read 2 more answers
Which of the following questions is a statistical question?
igomit [66]
I think A! Good luck! :)
8 0
3 years ago
Read 2 more answers
Other questions:
  • It takes 3/4 yards of ribbon to make a bow how many bows can be made with 7 yards
    5·2 answers
  • Grace is an hourly employee, and the line that models her total pay in dollars
    7·2 answers
  • Sarah has a solid wooden cube with a length of 4/5 centimeter. From each of its 8 corners, she cuts out a smaller cube with a le
    8·1 answer
  • Metal mercury at room temperature is a liquid.Its melting point is -39*C.The freezing point of alcohol is -114*C. How much warme
    7·2 answers
  • Find the value of x in the triangle in the picture.
    14·2 answers
  • ASAPPP!!!!
    5·1 answer
  • Explain how to find the product of 3/8 x 7/9 .Use complete sentences in your answer.
    7·1 answer
  • Could someone please help me with this question?
    6·2 answers
  • What percent is 36 of 90?<br><br> can u show it by doing a cross multiply method?
    14·2 answers
  • How do I graph the system of equations?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!