Find the circumstance of a CD that has a radius of 6 cm use pi' =3.14

Mathematics

1 answer:

jonny [76]3 years ago

4 0

$2 \times 6cm \times \pi \\ 12cm \times \pi \\ 37.699cm$
37.699

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Given the function f defined by the formula f(x)=2x+1 find the following

alexgriva [62]

$f(4)=2\cdot4+1=9\\
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6 0

3 years ago

Read 2 more answers

for a store contest four out of every 65 people who visit the store will receive a free DVD if 455 people visit the store how ma

Otrada [13]

If the rate at which they are giving the DVDs is the same then it is 4/65 or 16.25% or 0.1625.

Now just multiply 455 by the rate (4/65 or 16.25% or 0.1625) to find how many DVDs were given.

455 × (4/65) = 28

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hope it helps :)

5 0

3 years ago

2/3 (5 x 4) ÷ 3 + 6/7 I divided 3/2 is 1.5*(20)=30/3=10+1.16=11.16 is that correct not so good in math

Assoli18 [71]

$\frac{2}{3}(5*4):3+ \frac{6}{7} = \\ \\ \frac{2}{3}*20:3+ \frac{6}{7} = \\ \\ \frac{40}{3}:3+ \frac{6}{7} = \\ \\\frac{40}{9}+ \frac{6}{7}= \\ \\ \frac{40*7+6*9}{7*9}= \\ \\\frac{280+54}{63}= \\ \\ \frac{334}{63} = \\ \\ 5 \frac{19}{63} \ \ \ [as \ a \ mixed \ fraction] \\ \\ \approx 5.3 \ \ \ [as \ a \ decimal\ fraction \ to \ the \ nearest \ tenth]$