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Whitepunk [10]
2 years ago
15

Is f(x) =8-5x find the value of f(2-k)

Mathematics
1 answer:
serg [7]2 years ago
8 0

Answer:

5k - 2

Step-by-step explanation:

To evaluate f(2 - k), substitute x = 2 - k into f(x), that is

f(2 - k) = 8 - 5(2 - k) = 8 - 10 + 5k = 5k - 2

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2x4 + 4x3 – 30x2 = 0
liraira [26]
That equation is false.
8 + 12 - 60 = -40 , not 0
7 0
2 years ago
Brandon has two credit cards and would like to consolidate the two balances into one balance on the card with the lower interest
Nostrana [21]

The amount which Brandon have saved in interest by consolidating the two balances on the card with the lower interest rate is $256.12.

<h3>What is monthly payment?</h3>

Monthly payment is the payment which has to paid against the loan amount or the borrowed money calculated with interest rate.

It can be calculated with the following formula.

M=P\left (\dfrac{r}{1-(1+r)^{-nt}}\right)

Here, (<em>P</em>) is the principal amount, (<em>r</em>) is the interest rate and (<em>t</em>) is time.

Brandon has two credit cards and would like to consolidate the two balances into one balance on the card with the lower interest rate.

The table below shows the information about the two credit cards Brandon currently uses.    

  • Cards                Amount              APR             Monthly Payment
  • Card a               $1,463.82              13%                 $24.60
  • Card b               $1,157.98               17%                 $22.14

               

Interest rate for the card a is,

r=\dfrac{13}{12\times100}=0.01083

The time period is 8 years and there are 12 months in one year. Thus, the monthly payment of card A will be,

M=1157.98\left (\dfrac{0.01083}{1-(1+0.01083)^{-12(8)}}\right)\\M=19.47

In the 8 years, there is total 96 monthly payments. Thus, the total payment by card A is,

P_a=19.47\times96=1869.12

For the card B the monthly payment is $22.14. Thus the total payment by card B is,

P_b=22.14\times96=2125.44

The difference in the payment is,

d=2125.44-1869.12\\d=256.12

Hence, the amount which Brandon have saved in interest by consolidating the two balances on the card with the lower interest rate is $256.12.

Learn more about the monthly payment here;

brainly.com/question/2151013

6 0
2 years ago
How to do a word phrase 2(5-n)
scoray [572]
Twice the difference of 5 and n.
8 0
3 years ago
The table below shows the linear relationship between the number of people at a picnic and the total cost of the picnic.
8_murik_8 [283]

The true statements are:

  1. The independent variable is the number of people.
  2. The rate of change is $8.67 per person.
  3. As the number of people increases, the total cost of the picnic increases.

<h3>What are the true statements?</h3>

The independent variable is the variable that determines the value of the dependent variable. There is a positive relationship between the number of people at the picnic and the total cost. This is because it can be seen as the number of people at the picnic increases, the total cost changes.

Rate of change = total cost / number of people

$52 / 6 = $8.67

To learn more about independent variables, please check: brainly.com/question/26287880

#SPJ1

3 0
2 years ago
Express the following in scientific notation:<br> 10,030,400,000
Stella [2.4K]

Answer:

1.00304 * 10^10

Step-by-step explanation:

The first one dark blue I think

6 0
3 years ago
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