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dybincka [34]
3 years ago
14

The circumference of a circle is 12.3 in what is the radius of the circle

Mathematics
1 answer:
Rasek [7]3 years ago
7 0

Answer: r≈1.96

Step-by-step explanation:

C=2πr

Solving for r

r=C

2π=12.3

2·π≈1.95761

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A cafeteria can seat 5x10*2 students. Each table has 2x10*1 seats. How many tables are in the cafeteria?
frozen [14]

Answer: 25 tables.

Step-by-step explanation:

5 • 10*2= 500 (10*2= 100, then 100 times 5)

2 • 10*1= 20 (10*1= 10, then times 2)

Therefore a cafeteria can seat 500 students. Each table had 20 seats.

Divide 500/20 and get 25.

Hope this helps

8 0
3 years ago
Solve for x. <br><br> 6^(x/2)=5^(1-x)
slavikrds [6]

Hello from MrBillDoesMath!

Answer:

x = log5 / ( (1/2)log6 + log5)

    approximately  0.642

Discussion:

Take the logarithm of both sides ( to "pull" the exponents down so we can work on them!)

6^(x/2)) = 5^(1-x)

log ( 6^(x/2)) = log (5^(1-x))      =>   using log (a^n) = n log a

(x/2) log6 = (1-x) log5               =>   add x log5 to both sides

(x/2) log6 + xlog5 =  log5 - xlog5 + xlog5   =>

(x/2) log6 + xlog5 = log5          => factor x from the lhs

x (  (1/2) log6 + log5) = log5     =>

x = log5 / ( (1/2)log6 + log5)    

The above can be further simplified but that's as far as I want to take it.The value of x is approx equal to  0.642


Thank you,

MrB

3 0
3 years ago
Vlad tried to solve an equation step by step.<br> Find Vlad's Mistake.
d1i1m1o1n [39]

Answer:

I think that it’s correct

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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Juli2301 [7.4K]
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Mars2501 [29]

Answer:

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3 years ago
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