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Delicious77 [7]
3 years ago
8

The equation x2+y2=14 represents a

Mathematics
2 answers:
Akimi4 [234]3 years ago
8 0

Answer:

A Circle.

Step-by-step explanation:

x^2 + y^2 = 14

represents a circle with the center at (0, 0) and the radius is +√14 (because the 14 represents r^2.)

Ann [662]3 years ago
5 0

Answer:

r = √14

Step-by-step explanation:

Is this what you meant?  If so heres' the answer

Equation of circle

Center the origin

r = √14

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11. Mr Lee bought a second hand car for
Marrrta [24]

Answer :

Depends on the rate compound interest is accrued. See answers.

Step-by-step explanation:

We need the compound interest formula which is:

A = P (1+\frac{r}{n} )^{nt}

A =  final amount

P =  initial principal balance

r =  interest rate

n =  number of times interest applied per time period

t =  number of time periods elapsed

It doesn't say how frequently the interest is compounded, so we will do monthly, quarterly, and yearly.

MONTHLY

So we know the car costs $25,480 and he made a down payment of $10,000. By subtracting the down payment from the purchase price we find the loan amount.

$25,480 - $10,000 = $15,480

P = 15,480

r = 4.75% = .0475

n = 12  (12 months in a year)

t = 2  

Plug everything into the compound interest formula.

A = P (1+\frac{r}{n} )^{nt}

A = 15480(1+\frac{.0475}{12})^{12*2}

A = 15480(1+\frac{.0475}{12})^{24}

A = 15480(1+.00396)^{24}

A = 15480(1.00396)^{24}

A = 15480*1.0992

A = $17016.14

Mr. Lee paid $17,016.14 when the bill came due at 2 years with interest compounded monthly.

QUARTERLY

P = 15,480

r = 4.75% = .0475

n = 4  (4 quarters in a year)

t = 2  

A = P (1+\frac{r}{n} )^{nt}

A = 15480(1+\frac{.0475}{4})^{4*2}

A = 15480(1+\frac{.0475}{4})^{8}

A = 15480(1+.0119})^{8}

A = 15480(1.0119)^{8}

A = 15480*1.099

A = 15480(1.099)

A = 17013.20

Mr. Lee paid $17,013.20 when the bill came due at 2 years with interest compounded quarterly.

YEARLY

P = 15,480

r = 4.75% = .0475

n = 1  

t = 2  

A = P (1+\frac{r}{n} )^{nt}

A = 15480(1+\frac{.0475}{1})^{1*2}

A = 15480(1+\frac{.0475}{12})^{2}

A = 15480(1+.0475})^{2}

A = 15480(1.0475)^{2}

A = 15480*1.0973

A = 16985.53

Mr. Lee paid $16,985.53  when the bill came due at 2 years with interest compounded yearly.

4 0
3 years ago
Whats 200+300= plz get it right
Basile [38]

Answer:

200+300=500

Step-by-step explanation:

200+300=500 or 100+400=500

8 0
3 years ago
Read 2 more answers
End of each of the next 20
Gala2k [10]

Answer:

Annual withdraw= $57,583.68

Step-by-step explanation:

Giving the following information:

Present Value (PV)= $555,000

Interest rate (i)= 0.0825

Number of periods (n)= 20

<u>To calculate the annual withdrawals, we need to use the following formula:</u>

Annual withdraw= (PV*i) / [1 - (1+i)^(-n)]

Annual withdraw= (555,000*0.0825) / [1 - (1.0825^-20)]

Annual withdraw= $57,583.68

5 0
2 years ago
There are 360 mins for a monthly cell phone minutes for 4 people in the family, can each person get the same number of minutes o
telo118 [61]

yes, 360/4 = 90 minutes

6 0
3 years ago
If a+b =5, b+c=6, c+a=7. then find the value of a​
vlabodo [156]

Answer:

a = 3

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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