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
Sunny_sXe [5.5K]
3 years ago
15

The coordinates of a point on a coordinate grid are (−2, 6). The point is reflected across the x-axis to obtain a new point. The

coordinates of the reflected point are
Mathematics
1 answer:
cluponka [151]3 years ago
4 0
The reflection across the x-axis only change the signal of the y coordinate. Hence, the new point is P'(-2,-6).
You might be interested in
I need help thank you
balandron [24]

Answer:

Question 4 is B

7 0
2 years ago
Hi and hello have a nice day
Inga [223]

Answer:

Hey , stay safe <3

Step-by-step explanation:

Not sure if gif is working

8 0
3 years ago
A roast turkey is taken from an oven when its temperature has reached 185 degrees F and is placed on a table in a room where the
Vedmedyk [2.9K]
(a) Using Newton's Law of Cooling, \dfrac{dT}{dt} = k(T - T_s), we have \dfrac{dT}{dt} = k(T - 75) where T is temperature after T minutes.
Separate by dividing both sides by T - 75 to get \dfrac{dT}{T - 75} = k dt. Integrate both sides to get \ln|T - 75| = kt + C.

Since T(0) = 185, we solve for C:
|185 - 75| = k(0) + C\ \Rightarrow\ C = \ln 110
So we get \ln|T - 75| = kt + \ln 110. Use T(30) = 150 to solve for k:
\ln| 150 - 75 | = 30k + \ln 110\ \Rightarrow\ \ln 75 - \ln 110= 30k \Rightarrow \\ k= \frac{1}{30}\ln (75/110) = \frac{1}{30}\ln(15/22)

So

\ln|T - 75| = kt + \ln 110 \Rightarrow |T - 75| = e^{kt + \ln110} \Rightarrow \\ \\&#10;|T - 75| = 110e^{kt} \Rightarrow T - 75 = \pm110e^{(1/30)\ln(15/22)t}  \Rightarrow \\&#10;T = 75 \pm110e^{(1/30)\ln(15/22)t}

But choose Positive because T > 75. Temp of turkey can't go under.

T(t) = 75 + 110e^{(1/30)\ln(15/22)t} \\&#10;T(45) = 75 + 110e^{(1/30)\ln(15/22)(45)}  = 136.929 \approx 137{}^{\circ}F

(b)

T(t) = 75 + 110e^{(1/30)\ln(15/22)t} = 75 + 110(15/22)^{t/30}  \\&#10;100 = 75 + 110(15/22)^{t/30}   \\&#10;25 = 110(15/22)^{t/30}  &#10;\frac{25}{110} = (15/22)^{t/30}   \\&#10;\ln(25/110) / ln(15/22) = t/30 \\&#10;t = 30\ln(25/110) / ln(15/22)  \approx 116\ \mathrm{min}

Dogs of the AMS.
4 0
3 years ago
(x + 2) is raised to the fifth power. The third term of the expansion is:
morpeh [17]

Answer:

3

Step-by-step explanation:

6 0
2 years ago
What is 1/15 as a decimal
ElenaW [278]
1/15 as a decimal would be 0.6666666......

Or you can round that off to 0.67 



7 0
3 years ago
Read 2 more answers
Other questions:
  • Anybody Can Figure This One Out ?
    12·1 answer
  • The fraction of a dime that is made up of copper is 12/16. Write this fraction as a decimal
    5·1 answer
  • Simplify the complex fraction 2 3/4 over 1 1/8
    14·1 answer
  • Which ordered pair describes the location of point U?
    6·1 answer
  • A and B are independent events. P(A)=0.40 and P(B)=0.30. what is P(A and B)?
    7·2 answers
  • Please help:
    7·1 answer
  • Does this system have NO SOLUTION or INFINITE SOLUTIONS? y = 2/3 x + 2 and -2x + 3y = 6
    15·1 answer
  • At aa car dealership, for every 4 silver cars that are sold, 6 red cards are also sold. If 90 cars. Total are sold in a month, h
    7·1 answer
  • Find the slope of each line
    15·1 answer
  • How do you solve a degree of a polynomial?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!