2 years ago

TRUE or FALSE: ℼ is the ratio of a circle's circumference to its diameter.

2 answers:

7 0

Answer:

Here the Greek letter π represents a constant, approximately equal to 3.14159, which is equal to the ratio of the circumference of any circle to its diameter.

Step-by-step explanation:

so true

have a good day

dsp732 years ago

6 0

Answer:

True

Step-by-step explanation:

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What is the value of x? Enter your answer in the box.

Grace [21]

The shapes are similar.
When two figures are similar, the ratios of the lengths of their corresponding sides are equal.
Therefore,
$\frac{42}{(15 + 42)} = \frac{x}{10 + x}$

Simplify:
$\frac{42}{57} = \frac{x}{10 + x}$
Cross multiply:
42(10+x) = 57x
420 + 42x = 57x
420 = 57x - 42x
420 = 15x
x = (420÷15)
x = 28

3 0

3 years ago

A circle has a radius of 3 feet. What is the circumference of a bigger circle if the scale factor of the smaller to bigger is 4:

Vaselesa [24]

Big/small=4/7

r1/r2=4/7 where r1, r2 are radius of a big and small circles respectively

r1/3=4/7

r1=12/7

circumference of a big circle is2πr1=2π*12/7=24π/7 cm

7 0

3 years ago

Item 9 Find the annual interest rate. I=$562.50, P=$1500, t=5 yearsI=$562.50, P=$1500, t=5 years The annual interest rate is %.

Anton [14]

Hi there :-)
The formula of the simple interest is
I=prt
your question ask to find r which is interest rate you do that by dividing each side by (pt) to get
R=I÷pt
Now solve to get the interest rate
R=562.5÷(1,500×5)
R=0.075×100 multiply by 100 to get it as percentage
R=7.5%

Hope it helps:-)

4 0

2 years ago

Jonah's house and his grandparents house or 8046.7 I 2 m apart what is this distance in miles

Free_Kalibri [48]

Answer:

1.523

Step-by-step explanation:

1 mile equals 5280 feet

7 0

3 years ago

What's the square root of 30(.8)(90)??

Burka [1]

square root of 30(.8)(90)
√30(.8)(90)
√2700(.8)
√2160
12√15

3 0

2 years ago