How to find the x value given the y value on a ti 84?

Caleb has an offer from a credit card issuer for 0% APR for the first 30 days and 17.68%

svetlana [45]

Solution:- Answer is 19.33%

Annual percentage rate (APR) is the yearly rate for a price which have to pay for borrowing money through credit card.

Here Caleb has an offer from a credit card issue for i=0% APR for the first 30 days.

now, effective interest rate for n= 30 days

= $r=(1+\frac{i}{n} )^n-1\\\Rightarrow\ r=(1+\frac{0}{30} )^{30}-1\\\Rightarrow\ r=(1+0)^{30}-1=1-1=0$

After 30 days APR =17.68%=0.1768

n=365-30=335 days

now the effective interest rate for n=335 days

= $r=(1+\frac{i}{n} )^n-1\\\Rightarrow\ r=(1+\frac{0.1789}{335} )^{335}-1\\\Rightarrow\ r=(1+0.000527)^{335}-1=(1.000527)^{335}-1=1.1933-1=0.1933$

=19.33%

So the effective interest rate for 365 days =0+19.33% =19.33%

So fourth option is correct.

6 0

4 years ago

Read 2 more answers

Is the square root of 53 a irrational or rational number

dusya [7]

Answer:

irrational

Step-by-step explanation:

53 is not a perfect square. (The closest ones are 7² = 49, 8² = 64.) Because it is not a perfect square, its square root is <em>irrational</em>.

6 0

2 years ago

1. What is the possible value <br> 2. What is the sum of the finite arithmetic series

raketka [301]

Answer:

10. A possible value of missing term is -175 ⇒ last answer

11. The sum = 900 ⇒ first answer

Step-by-step explanation:

10. ∵ It is a geometric sequence

∴ The constant ratio between any two consecutive numbers is r

∴ r = x/35 and r = 875/x ⇒ x is the missing term

∴ x/35 = 875/x

∴ x² = (35)(875) = 30625

∴ x = ±√30625 = ± 175

∴ A possible value of missing term is -175

11. ∵ -10 , 0 , 10 , 20 , ........................ , 130 is arithmetic series

∴ Tn = a + (n - 1)d

a is the first term , d difference between any 2 consecutive terms

n is the position of the number in the series

∴ Sn = n/2(a + L) ⇒ L is the last term

∵ a = -10 , d = 10 , L = 130

∴ 130 = -10 + (n - 1)(10)

∴ 130 + 10 = 10(n - 1) ⇒ 140 = 10(n - 1)

∴ 140/10 = n - 1 ⇒ 14 = n - 1 ⇒ n = 14 + 1

∴ n = 15

∴ S(15) = 15/2 [-10 + 130] = 15/2 (120) = 900

4 0

4 years ago

Can someone please help, my homework is so soon

statuscvo [17]

The line above the 6 and 3 means that those are recurring, so the full number is 2.63636363.... Recurring numbers can never be defined by decimals, because there is no end to the numbers repeating. It can only be defined by a fraction, so that means the number is irrational. Because it is between integers (a fraction that can't be simplified and will give a recurring decimal), it can't be a real number. All rational numbers are real numbers, but no irrational number can be a real number.

Therefore, your answer is 'Irrational number'.

Hope I helped!

6 0

3 years ago

Make a conjecture about the next item in the sequence. 6, 2, −4, −8, −14

Dmitry_Shevchenko [17]

The next item in the sequence will be -18, as the sequence is subtracting 4, then subtracting 6, then subtracting 4, and so forth. To continue the sequence, the next number will be 4 less than -14, which is -18.

Hope this helps!!

3 0

3 years ago