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Mathematics

2 answers:

Amiraneli [1.4K]2 years ago

7 0

$volume = \pi \times {r}^{2} \times h \\ volume = 3.142 \times (10 \div 2)^{2} \times 18 \\ volume \: = 3.142 \times 25 \times 18 \\ volume = 1413.9{cm}^{3}$

$price = \frac{1413.9 \times 0.02}{10} = 2.8278 = 2.83 \: dollars$

solong [7]2 years ago

6 0

Answer:

Step-by-step explanation:

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On a biased dice , the probability of getting a 6 is 4/5. The dice is rolled 500 times. How many sixes would you expect to roll?

tatyana61 [14]

Find 4/5 of 500.

4/5*500=400

You will roll 400 sixes.

5 0

3 years ago

If f(1) = 160 and f(n+ 1) = -2f(n), what is f(4)?

sertanlavr [38]

F(1) = 160 is given to us. We'll use it to find f(2)
f(n+1) = -2*f(n)
f(1+1) = -2*f(1) ... replace every n with 1
f(1+1) = -2*160 ... replace f(1) with 160
f(2) = -320

Now use f(2) to find f(3)
f(n+1) = -2*f(n)
f(2+1) = -2*f(2) ... replace every n with 2
f(3) = -2*(-320) ... replace f(2) with -320
f(3) = 640

Finally, use f(3) to find f(4)
f(n+1) = -2*f(n)
f(3+1) = -2*f(3) ... replace every n with 3
f(4) = -2*640 ... replace f(3) with 640
f(4) = -1280

Final Answer: -1280

7 0

3 years ago

Read 2 more answers

Write a real-world application problem such that the equation to be formed to solve the problem is

Ne4ueva [31]

Answer:

X=25

Step-by-step explanation:

Remove parentheses

7x - 5x - 40= 10

Merge the similar terms

2x - 40= 10