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Sidana [21]
3 years ago
11

9. f(x) = x2 - 49, g(x) = x + 7

Mathematics
1 answer:
djyliett [7]3 years ago
6 0

Answer:

(x^(2)-49)/(x-7)

Step-by-step explanation:

Did it.

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A card is drawn from a standard deck of playing cards. What is the probability of drawing a 2 or a queen
klasskru [66]

Answer: 4/52

Step-by-step explanation:

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3 years ago
A motorboat takes 5 hours to travel 100 kilometers going upstream. The return trip takes
tatuchka [14]

Step-by-step explanation:

Let's say b is the rate of the boat in still water, and c is the rate of the current.

Distance = rate × time

Going upstream:

100 = (b − c) (5)

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Going downstream:

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Solve the system of equations using substitution or elimination.  Using elimination, add the equations together:

70 = 2b

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The boat's speed is 35 km/h, and the current's speed is 15 km/h.

8 0
3 years ago
What does "place value" mean? Give specific examples of systems that use place value and those that do not.
zaharov [31]

Answer:

Place value can be defined as the value represented by a digit in a number on the basis of its position in the number.

Step-by-step explanation:

In the number 456, the "5" has a face value of 5. Value = The place value of the digit times its face value. Example: Find the value of the digits 6, 8 and 4 in the number 684.

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3 years ago
Sonji bought a combination lock that opens with a four-digit number created using the digits 0 through 9. The same digit cannot
iogann1982 [59]
Since it is a four combination lock or permutation and she wants the last digit to be seven we have_,_,_,7
The first digit: Since we need it to be any number except 7 we have 9 possibilities.For the second digit: We have 8 possibilities since the numbers can't be repeated and we already chose 7 to be the last digit and any other digit to be the first digit.For the third digit: there are 7 possibilities since we already chose three numbers and these cannot be repeated. 
We have the following:9*8*7=504
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What the place value of 3 in 3.824
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Answer:

Ones place

The first number before the decimal is the number in the ones place

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