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2 years ago

Find the number of possible choices for a 3-digit PIN (personal identification number) if the digits CAN be repeated.

Mathematics

1 answer:

Lelechka [254]2 years ago

5 0

10*10*10 = 1000 possible choices

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7. I am currently 5 times as old as my daughter. In 6 years from now. I will be three times as old she will be then. Find our cu

xxTIMURxx [149]

Answer:

Daughter is 6 , mother is 30.

Step-by-step explanation:

5 0

1 year ago

Evaluate lim x=π/4(3x - tanx)

Karo-lina-s [1.5K]

Answer:

$\lim_{x \to\frac{\pi }{4} } (3x-tanx)$ = $3(\frac{\pi }{4} )$

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given that

$\lim_{x \to\frac{\pi }{4} } (3x-tanx)$

= $\lim_{x \to\frac{\pi }{4} } (3x) - \lim_{x \to\frac{\pi }{4} } tanx)$

= $3(\frac{\pi }{4} )+tan(\frac{\pi }{4} )$

= $3(\frac{\pi }{4} )+ 1 )$

= $3(\frac{\pi }{4} )$

5 0

2 years ago

Given f(x)=3x+4. Determine the value of x if f(x)=21 to the nearest tenth.

ella [17]

Answer:

5.7

Step-by-step explanation:

3x+4 = 21

3x = 17

x = 5.666667 = 5.7

6 0

2 years ago

I need the equation for this ASAP!

Sindrei [870]

Answer:

5.714 liters of the 5% solution and 4.286 of the 40%.

Step-by-step explanation:

Let x be the volume of 40% solution and y = volume of the 5% solution.

x + y = 10

0.40x + 0.05y = 0.20(x + y)

From the first equation x = 10 -y so we have:

0.40(10 - y) + 0.05y = 0.20( 10 - y + y)

4 - 0.40y + 0.05y = 2

-0.35y = -2

y = 5.714 liters of the 5%.

and x = 10 - 5.714 = 4.286 liters of the 40% solution.

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

If p is a prime, which one of the following could be a prime also?

xz_007 [3.2K]

Well I got j for this. I picked a prim number for ex 5 and tries it with each problem.

7 0

2 years ago