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charle [14.2K]
3 years ago
12

If RB = 4 and OR = 3, then OB =

Mathematics
1 answer:
3241004551 [841]3 years ago
3 0
5 would be the right answer.
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A frozen pizza cost $3.00 in the year 2000. In 2015, it cost $2.50. What is the percent of change of the pizza from 2000 to 2015
UkoKoshka [18]

Answer:

Step-by-step explanation:

Increased amount = 3 - 2.50 = $ 0.50

Increase percentage = \frac{0.50}{2.50}*100\\

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12. P (7,r) = 5040. Find r<br><br>A. 5<br>B. 6<br>C. 7<br>D. 8​
aalyn [17]

Answer:

B

Step-by-step explanation:

P(7,r) = 5040

P(n,r)=\dfrac{n!}{(n - r)!}\\\\\\n = 7 \\\\\dfrac{7!}{(7 - r)!}=5040\\\\\\7! = (7-r)!*5040\\\\(7-r)!=\dfrac{5040}{7*6*5*4*3*2*1}\\\\\\(7-r)!=\dfrac{5040}{5040}\\\\\\(7-r)!=1\\\\

(7 - r)! = 1!

7 -r = 1

7 = 1 + r

7 - 1 = r

r = 6

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What is -2x divided by -10
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Answer:

Factor the numerator and denominator and cancel the common factors.

-2x/-10 = x/5

Step-by-step explanation:

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