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3 years ago

What is the difference between smart card and cash card?

Mathematics

2 answers:

lana [24]3 years ago

5 0

Answer:

A smart card is more secure than a cash card.

ziro4ka [17]3 years ago

4 0

<span>A Smart Card refers to the integrated circuit chip on the card - that's the small square or round chip usually seen on the face of the card. This is used on both debit and credit cards to deliver encrypted authentication for the card when it is used in an shop at an electronic data capture machine (POS terminal), or at an ATM. The chip helps to prevent fraud and reduces the risk of a card’s data being duplicated.</span>

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Wolf brothers help me out, please no link

soldi70 [24.7K]

Answer:

21 cards left to be signed

Step-by-step explanation:

1/3 of 72 is 24

So Harrison signed 24

3/8 of 72 is 27

Sp Alwine signed 27

24+27=51

So 72-51=21

21 cards left to be signed

6 0

2 years ago

Read 2 more answers

Fill in the blank.

Amiraneli [1.4K]

Answer: x ≈ 18 ft

Step-by-step explanation:

We will use our trig knowledge to solve this.

The man is standing 10 ft away, but we also need to add the 5 ft shadow as well as that is a point on our triangle.

We can set up a simple trig equation of: tan(50) = x/15

x being the height of the lamppost.

Now we solve.

tan(50) = 1.1918

1.1918 *15 = x

x = 17.876

Now round to the nearest foot.

x ≈ 18 ft

4 0

3 years ago

A bacteria population experiences continuous growth. If there were 2,000 bacteria present at the start of an experiment, how lon

allochka39001 [22]

Answer:

D. About 15.69 hours.

Step-by-step explanation:

Let x be the number of hours.

We have been given that there were 2,000 bacteria present at the start of an experiment and the growth rate was 7% per hour.

Since number of bacteria is growing exponentially, so we will use exponential growth function to solve our given problem.

The continuous exponential growth formula is in form: $y=e^{kx}$ , where,

e= mathematical constant,

k = Growth rate in decimal form.

Let us convert our given rate in decimal form.

$7\%=\frac{7}{100}=0.07$

Upon substituting our given values we will get exponential function for bacteria growth as: $y=2,000*e^{0.07x}$ , where, y represents number of bacteria after x hours.