Lian has $1.00 . She has only nickles and dimes. Lian has twice as many dimes and nickles

Mathematics

2 answers:

Lena [83]3 years ago

5 0

Answer:

4 nickels and 8 dimes

Step-by-step explanation:

4 nickels is 0.20 and 8 dimes is 0.80

Trava [24]3 years ago

5 0

Answer:

4 nickles 8 dimes

Step-by-step explanation:

4 nickles 8 dimes

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Is 12/1,000 repeating or terminating Please i need it right now

maria [59]

Answer:

the answer is 0.012, terminating

Step-by-step explanation:

move the decimal place three places to the left

since it is not repeating it is terminating

8 0

2 years ago

In a circle, area and circumference can be found using the formulas A=(pi)r^2 and C=2(pi)r, respectively, Write a formula for A

AURORKA [14]

Answer:

$A = \dfrac{C^2}{4\pi}$

Step-by-step explanation:

Given that

Area of a circle $A=\pi r^2$

Circumference of the circle $C = 2 \pi r$

Let us re-write the equation of area of circle:

$A=\pi r^2$

$A = \pi \times r \times r$

Multiplying and dividing with 2:

$A = \dfrac{2\pi r}{2} \times r\\\text{Putting }2\pi r = C:\\\Rightarrow A = \dfrac{C}{2} \times r\\\text{Multiplying and dividing by } 2\pi:\\\Rightarrow A = \dfrac{C}{2} \times \dfrac{2\pi r}{2\pi}\\\text{Putting }2\pi r = C:\\\Rightarrow A = \dfrac{C \times C}{4 \pi}\\\Rightarrow A = \dfrac{C^2}{4 \pi}$