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
mario62 [17]
3 years ago
10

101

Mathematics
1 answer:
Anna35 [415]3 years ago
3 0

Answer:

second option

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

Here (h, k) = (4, 5) and r = 2 , thus

(x - 4)² + (y - 5)² = 2², that is

(x - 4)² + (y - 5)² = 4 ← equation of circle

You might be interested in
Situation:A researcher in North America discoversa fossile that contains 65% of its originalamount of C-14..-ktN=NoeNo inital am
zheka24 [161]

SOLUTION

We have been given the equation of the decay as

\begin{gathered} N=N_0e^{-kt} \\ where\text{ } \\ N_0=initial\text{ amount of C-14 at time t} \\ N=amount\text{ of C-14 at time t = 65\% of N}_0=0.65N_0 \\ k=0.0001 \\ t=time\text{ in years = ?} \end{gathered}

So we are looking for the time

Plugging the values into the equation, we have

\begin{gathered} N=N_0e^{-kt} \\ 0.65N_0=N_0e^{-0.0001t} \\ e^{-0.0001t}=\frac{0.65N_0}{N_0} \\ e^{-0.0001t}=0.65 \end{gathered}

Taking Ln of both sides, we have

\begin{gathered} ln(e^{-0.000t})=ln(0.65) \\ -0.0001t=ln(0.65) \\ t=\frac{ln(0.65)}{-0.0001} \\ t=4307.82916 \end{gathered}

Hence the answer is 4308 to the nearest year

8 0
1 year ago
A restaurant had a special on hamburger meal deals. They marked down the meals from $7 to $4. How much would you SAVE on 5 meal
vichka [17]

I did say the answer is $35. Because, you should use the highest factor or whatever operation the problem is using, to find the answer. Not sure if it's some two-step problem....

3 0
3 years ago
What is - 3x - ( - 2 - 4x ) if x equals 5
m_a_m_a [10]
It would be 7 because -3 times 5
7 0
3 years ago
A retiree invests 3,000 in a savings plan that pays 3% per year. What will the account balance be at the end of the first year
Lubov Fominskaja [6]

Interest earned = rate charged × amount invested

Interest = 3/100 × $3000 = $90

Account balance after one year = Amount invested + Interest earned

Account balance after one year = $3000 + $90 = $3090

7 0
3 years ago
Find the range of ƒ(x) = 3g – 5 for the domain {–1.5, 2, 4}
timofeeve [1]
-1.5 ------ f(x) = 3(-1.5) - 5
= -4.5 -5
= 9.5

2 -------- f(x) = 3(2) - 5
= 6 -5
= 1

4 -------- f(x) = 3(4) - 5
= 12 - 5
= 7
(9.5, 1 , 7)
6 0
3 years ago
Other questions:
  • 27 is 12% of what number?
    15·2 answers
  • The price of milk has been steadily increasing 5% per year. If the cost of a gallon is now $3.89: What will it cost in 10 years?
    9·1 answer
  • Use a calculator to find the standard deviation of this data set:
    8·1 answer
  • the craft marnie wants to make must be at least 22.05 inches long. is the material lace border long enought?explain your answer
    10·1 answer
  • HELP PLEASE!
    13·2 answers
  • What is the square root of 1350÷600
    14·1 answer
  • Which polynomials are listed with their correct additive inverse? Check all that apply
    13·2 answers
  • Did i do this righttttt what do i have to fix
    12·2 answers
  • The owner of a sportin goods store buys pairs of rollerblades for $60 and marks them up 25%.Several months later,he decided to c
    10·1 answer
  • A.Who was the first english mathematician who first used the modern symbol of equality in 1557?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!