$\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r = radius\\[-0.5em] \hrulefill\\ C=44 \end{cases}\implies 44=2\pi r\implies \cfrac{44}{2\pi }=r\implies \cfrac{22}{\pi }=r \\\\\\ \stackrel{\textit{diameter is 2r}}{2\cdot \cfrac{22}{\pi }}\implies \cfrac{44}{\pi }\qquad \approx \qquad 14.00563499208679$

3 0

3 years ago

You want to buy an item that costs $100. Which of these is the most cost-effective choice for buying the item?

Evgen [1.6K]

The answer is C. This would make the total cost 90 dollars without paying for a membership card or shipping.

3 0

2 years ago

Read 2 more answers

Max constructed a scale model of the Eiffel tower. The base area of the model is 0.25 square meters, while the base area of the

Vanyuwa [196]

Answer:

1:250

Step-by-step explanation:

$\sqrt{15625/0.25}$

= $\sqrt{62500}$

=250

8 0

3 years ago

How many solutions are there to the equation 10= a + b + c with each of a, b, and c a whole number greater than or equal to zero

djverab [1.8K]

If a is fixed and b,c are unknowns then the equation b+c=10-a has 11-a solutions. They are pairs (b,c): (0,10-a), (1,9-a), (2,8-a), ... (10-a,0). As a runs from 0 to 10 we have total number of solutions (11-0)+(11-1)+...(11-1)=11+10+...+1=(1+11)*11/2=66.

4 0

3 years ago