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Debora [2.8K]
2 years ago
5

How to do the discriminant and the quadratic formula?

Mathematics
1 answer:
aivan3 [116]2 years ago
8 0

Answer:

Quadratic formula (see image)

Step-by-step explanation:

Discriminant: b^2-4ac

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Outside a​ home, there is aa 44​-key keypad numbered 11 through 44. The correct sixsix​-digit code will open the garage door. Th
olya-2409 [2.1K]

Answer:

a) 4,096

b) 0.000244

Step-by-step explanation:

a)  

By the Fundamental rule of counting, there are

4*4*4*4*4*4 = 4,096  

ways of forming six-digit arrangements where each position has 4 possibilities (1 to 4)

b)

The probability of entering the correct code on the first try, assuming that the owner does not remember the code is  

1/4096 = 0.000244

5 0
3 years ago
Can someone please help me with all the questions ​
LuckyWell [14K]

Answer

i don't think people wanna do it

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
A row of seats in stadium has 10 seats per section and 10 section per row. How many seats are there in 6 row ?
Keith_Richards [23]

Answer:

26 seats

Step-by-step explanation:

10+10=20 +6 =26

4 0
2 years ago
You have a goal of saving to build up a nest egg of $625,357.24, and you are going to make regular deposits to an account that p
Delvig [45]

The monthly deposit required to save up to $625,357.24 (future value) in 40 years at a 7.2% APR is <u>$225.20</u>.

<h3>What is the monthly deposit?</h3>

The monthly deposits are the periodic savings that the investor must make to achieve future value.

The monthly deposit is compounded at the monthly annual percentage rate (APR).

We can compute the required monthly deposits using an online finance calculator as follows:

N (# of periods) = 480 months (40 years x 12)

I/Y (Interest per year) = 7.2%

PV (Present Value) = $0

FV (Future Value) = $625,357.24

<u>Results</u>:

Monthly Deposits (PMT) = $225.20

Sum of all periodic payments = $108,096 ($225.20 x 480)

Total Interest = $517,261.24

Thus, to save $625,357.24 in 40 years, you need to deposit <u>$225.20</u> monthly.

Learn more about periodic deposits (payments) at brainly.com/question/13031679

#SPJ1

6 0
1 year ago
Which of the following equations is the result after the first step in solving 3x + 6 = 12?
tensa zangetsu [6.8K]
3x=18 because you add the like terms 6 and 12
7 0
3 years ago
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