All categories

2 years ago

Calculate the circumference of each circle. Round your answer to the nearest hundredth.

Mathematics

1 answer:

lord [1]2 years ago

8 0

Answer: 39.58 cm

Step-by-step explanation:

The circumference of a circle is 2 times the radius times pi or pi times the diameter. so we know the diameter is 12.6 so just multiply it by pie.

12.6 * pi = 39.584

Now rounded to the nearest hundredth is 39.58.

You might be interested in

Find the following ratios. Write each answer as a fraction and as a decimal rounded to four decimal places.

Alona [7]

Answer:

$y = 56.6208$

Step-by-step explanation:

Given

The attached triangle

Required

Find y

To find y, we make use of the relationship between sides lengths 44 & y and angle 39

The relationship is:

$cos(39) = \frac{44}{y}$

i.e.

$cos(\theta) = \frac{Adjacent}{Hypotenuse}$

Make y the subject

$y = \frac{44}{cos(39)}$

$y = \frac{44}{0.7771}$

$y = 56.6208$ -- approximated

5 0

2 years ago

Rewrite 20 = 8x + 4r

3241004551 [841]

Answer:

Step-by-step explanation:

20 = 8x + 4r can be rewritten in multiple ways.

1. Reduce the coefficients: 5 = 2x + r

2. Solve for r: r = 5 - 2x

5 - r

3. Solve for x: x = -----------

4 0

2 years ago

HELP ASAP PLZ PLZ PLZ I GIVE BRAINLIEST

Yuki888 [10]

Answer:

Step-by-step explanation:

We can see that the base TA is 4, and the second base RS is 2. We can see that the height is 4. The area of a trapezoid is:

$A=\frac{h(b_1+b_2)}{2}$

Using this, we can substitute, and get:

$A=\frac{4\cdot(2+4)}{2} = \frac{24}{2} = 12$

Hope it helps!!

5 0

2 years ago

The diagram shows a square with a perimeter of 20 cm.

arlik [135]

Basically that’s it but write it down by yourself

3 0

2 years ago

Please help me with this question :)

Alona [7]

Answer:

0 is the answer.

Step-by-step explanation:

3=(|x|/12) +3

3=(|x|+12(3))/12

3*12= |x|+ 36

|x|=36-36

|x|=0

x=0

7 0

2 years ago