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3 years ago

13

The code for a lock consists of 3 digits using the digits: 1,2,4,7,8,9. How many different codes are possible if no digit may be

repeated?

1 answer:

hodyreva [135]3 years ago

8 0

Answer:

279

Step-by-step explanation:

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Mary can paint a house by herself in 12 hours. john can paint a house by himself in 16 hours. how long would it take them to pai

QveST [7]

1/12+1/16=1/n
4/48+3/48=1/n
7/48=1/n
48=7n
n=48/7 hours to paint the house if they worked together
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3 years ago

damaskus [11]

Answer:

Your search - 32y−3+53z23y−3+ 35z when y=6y=6 andz=3z=3. - did not match any documents.

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Step-by-step explanation:

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3 years ago

Allison has 5 times as many baseball cards as football cards in al,she has 120 baseball and football cards. How many baseball ca

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Allison has 94 baseball cards.

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3 years ago

Compute each sum below. If applicable, write your answer as a fraction.

Alex777 [14]

Answer:

First equation is -425

Second equation is 11.25

Step-by-step explanation:

First equation we can write as

$\sum_{i=0}^7 5 \times (-2)^i$

computing

When i=0 -> $5 \times (-2)^0 =5$

When i=1 -> $5 \times (-2)^1 = -10$

...

When i=7 -> $5 \times (-2)^7 = --640$

then replacing each term we have

$5 + (-10) + ( 20) + ( -40) + (80) +( -160) + 320 + (-640) = -425$

For the second equation we'll have 9 terms, solving in a similar fashion

When i=1 -> $\frac{1}{4}1=0.25$

When i=2 -> $\frac{1}{4}2=0.50$

When i=3 -> $\frac{1}{4}3=0.75$

...

When i=9 -> $\frac{1}{4}9=2.25$

So we have 0.25 + 0.50 + 0.75 + 1.00 + 1.25 + 1.50+ 1.75 +2.00 +2.25

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3 years ago

Suppose the amount of chickens varies directly with the pounds of corn needed. Billy

Anna11 [10]

Answer:

83904984098140984019258070271

Step-by-step explanation:

The chickens be hungry doe.

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2 years ago