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Otrada [13]
4 years ago
12

Anthony got a new iPhone. He needs to create a 4-digit passcode. How many passcodes can be created if REPETITION OF DIGITS IS AL

LOWED? Please show your work.
Mathematics
1 answer:
Snezhnost [94]4 years ago
7 0
An infinite amount...since there ARE and infinite amount of number in the universe.

1111

2222

3333

4444

5555

6666

7777

8888

9999


1010

1234

4321

5432

2345

5678

8765

0987

7890

4509

9054

Etc
You might be interested in
9.
e-lub [12.9K]

Answer:

a = 0.3 and b = - 1.1

Step-by-step explanation:

(x - 2)² = x² -4x + 4

Hence, x² - 4x + 4 = 3x - 6

x² - 7x + 10 = 0

(x - 5)(x - 2) = 0

∴ x = 5 or 2

f(5) = 25a + 5b = 2  ----- (i)

f(2) = 4a +  2b = -1  ------ (ii)

(i) X 2: 50a + 10b = 4 ----- (iii)

(ii) X 5: 20a + 10a = -5  ---- (iv)

Subtract (iv) from (iii): 30a = 9

a = 0.3

Substitute a into (ii) to obtain b

4(0.3) + 2b = -1

2b = -1 - 1.2 = -2.2

∴ b = -1.1

8 0
3 years ago
Can somebody please help me
-Dominant- [34]

    I can't seem to find the measure because it always when trying to find x (verticla angle) turns into a decimal answer. So I'm hoping that the diagram could help you find your answer.

7 0
3 years ago
The mass of the particles that a river can transport is proportional to the sixth power of the speed of the river. A certain riv
Gelneren [198K]

Answer:

v_2 \approx 1.12246\ m.s^{-1}

v_{10}\approx 1.4678\ m.s^{-1}

v_{100}\approx 1.4678\ m.s^{-1}

Step-by-step explanation:

Mass of particles that a river can transport, m\propto\ v^6

where:

v = velocity of river flow

When v=1\ m.s

then the mass transported, m \propto 1^6

<u>When mass is twice:</u>

v=\sqrt[6]{2}

v_2 \approx 1.12246\ m.s^{-1}

<u>When mass is 10 times:</u>

v=\sqrt[6]{10}

v_{10}\approx 1.4678\ m.s^{-1}

<u>When mass is 100 times:</u>

v=\sqrt[6]{100}

v_{100}\approx 1.4678\ m.s^{-1}

7 0
3 years ago
What is the x intercept of the graph shown below
tamaranim1 [39]

Answer:

( 3,0) .

Step-by-step explanation:

Given : Graph .

To find : What is the x intercept of the graph shown below.

Solution  : We have given Graph .

X - intercept : is that point on  x axis at which y = 0.

We can see from the given graph  on x axis where y = 0 .

At x = 3 , y= 0

So , x - intercept is 3

Therefore, ( 3,0) .

3 0
3 years ago
Read 2 more answers
Tyee is preheating his oven before using it to bake. The initial temperature of the oven is 75° and the temperature will increas
blsea [12.9K]

Answer:

A

Step-by-step explanation:

6 0
3 years ago
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