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shtirl [24]
3 years ago
14

Find the circumference of the circle if the radius is 4 inches

Mathematics
2 answers:
AlladinOne [14]3 years ago
5 0
The answer is 25.13
Kitty [74]3 years ago
3 0

Answer:

25.13

Step-by-step explanation:

C = d(\pi)

d = r(2) in this case 4(2) = 8 = d

so 8(\pi) = C

C ≈ 25.13

You might be interested in
Unit 3, Lesson 7
aksik [14]

Answer:

Find the complete table in attached file.

Step-by-step explanation:

Find the Incomplete table in attached file

Given:

A car travels 55 miles per hour for 2 hours.

So the speed of the car 55 miles per hour is constant for 2 hours.

Using speed  formula.

Speed=\frac{distance}{time}

Second row.

From the second row of the table time = \frac{1}{2}=0.5\ sec and speed is constant speed = 55\ mi/hr, so we need to find only distance.

Speed=\frac{distance}{time}

55=\frac{distance}{0.5}

distance = 55\times 0.5

distance = 27.5\ mi

Third row.

From the third row of the table time =1\frac{1}{2}=\frac{3}{2} = 1.5\ sec and speed is constant speed = 55\ mi/hr, so we need to find only distance.

Speed=\frac{distance}{time}

55=\frac{distance}{1.5}

distance = 55\times 1.5

distance = 82.5\ mi

Fourth row.

From the fourth row of the table distance =110\ miles and speed is constant speed = 55\ mi/hr, so we need to find time.

Speed=\frac{distance}{time}

time=\frac{distance}{speed}

time=\frac{110}{55}

time = 2\ sec

Therefore we complete the table from the above calculation.

8 0
3 years ago
the price of a 14 oz box of crackers is $2.94. the price of a 20 oz box is $3.60. what is the difference in price per ounce ?​
solong [7]

Answer:

The difference in price per ounce of the boxes is $0.03 or 3 cents.

Step-by-step explanation:

Divide each dollar amount by the ounces. The answer to $2.94 divided by 14 is 21 cents. $3.60 divided by 20 is 18 cents. Subtract 18 cents from 21 cents to get 3 cents.

4 0
3 years ago
Read 2 more answers
8/(-4)+7<br><br><br><br> help LMFO <br> and explain
Vilka [71]

Answer:

5

Step-by-step explanation:

reminder of rules for division

• If signs are the same then positive result

• If signs are different the negative result

\frac{8}{-4} + 7 ( signs of division are different )

= - 2 + 7

= 5

7 0
3 years ago
Read 2 more answers
What would be the steps​
DedPeter [7]

2- 12.5%

The hours between 12-8 is a total of 8 hours

6 to 8 is a total of 2 hours

2/8 is 25 percent but there are two days on the weekend so therefore it’s a 50 50 Chance to play on Sunday so divide 25 in half and you get 12.5 %

3 0
3 years ago
When two equal forces are inclined at an angle 2a their resultant is twice as great as
swat32

Step-by-step answer:

Referring to the attached diagram, the resultant of two forces each with magnitude F and inclined to each other at 2a equals

Ra = 2Fcos(a) ..............................(1)

Similarly, the resultant of two forces each with magnitude F and inclined to each other at 2b equals

Rb = 2Fcos(b)..............................(2)

We are given that

Ra = 2Rb  ....................................(3)

Substitute (1) & (2) in (3) gives

2Fcos(a) = 2(2Fcos(b))

Expand

2Fcos(a) = 4Fcos(b)

Simplify

cos(a) = 2 cos(b)   QED

Note: Please note that you might have a faster response if you posted this question in the physics or the (new) Engineering section.

Have a nice day!

5 0
3 years ago
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