3 years ago

What is the surface area of the following cylinder in square centimeters? 54.95 cm2 471 cm2 47.1 cm2 31.4 cm2

Mathematics

1 answer:

goldfiish [28.3K]3 years ago

5 0

Answer:

54.95

hope this helps :p

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3. Two-thirds of a number plus 4 is 76. What is the number?<br>

max2010maxim [7]

Answer:

108

Step-by-step explanation:

2/3x+4=76

2/3x=72

x=72*3/2

x=108

4 0

3 years ago

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aleksandr82 [10.1K]

Answer:

<h2>no solution</h2>

Step-by-step explanation:

$Use:\\\\(a^n)^m=a^{nm}\\--------------\\64=2^6\\512=2^9\\\\\text{therefore}\\\\64^{3x}=512^{2x+12}\\\\(2^6)^{3x}=(2^9)^{2x+12}\\\\2^{(6)(3x)}=2^{(9)(2x+12)}\iff6(3x)=9(2x+12)\\\\18x=9(2x+12)\qquad\text{divide both sides by 9}\\\\\dfrac{18x}{9}=\dfrac{9(2x+12)}{9}\\\\2x=2x+12\qquad\text{subtract 2x from both sides}\\2x-2x=2x-2x+12\\\\0=12\qquad\bold{FALSE}$