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Goryan [66]
3 years ago
8

Find the circumference of each circle use 22/7 for pi?

Mathematics
1 answer:
swat323 years ago
8 0

Answer:

The formula to determine the circumference is: 2 x 3.14 x radius. All you need to do is plug in the value of the radius, 56, and multiply it by 2 and 3.14.

Step-by-step explanation:

You might be interested in
At maximum speed an airplane travels 2100 miles against the wind in 6hrs. Flying with the wind the plane can travel the same dis
WARRIOR [948]
Let, the speed of Airplane = x
Speed of Wind = y

We know, Speed = Distance / Time

So, x-y = 2100 / 6
x-y = 350
& x+y = 2100/4
x+y = 525

Substitute value of x from equation 1 into 2, 
350+y+y = 525
2y = 525-350
y = 175/2
y = 87.5

& x = 350+y = 437.5

In short, Speed of Airplane is 437.5 mph and Wind is 87.5 mph

Hope this helps!
6 0
3 years ago
Emil's backpack weighs 6 3/8 pounds. He removes a book that weighs 3/4 pounds. Then he removed a book that weighs 1/2 pound. How
Alex_Xolod [135]

Answer:

2.5625

Step-by-step explanation:

So 6 3/8- 1/2 -3/4= 5.125 5.125 divided 2 = 2.5625


6 0
3 years ago
By which matrix should you multiply vector [1 3] to rotate it 180°?
Ksivusya [100]

Answer:

B

Step-by-step explanation:

Rotation 180° is accomplished by negating both the x- and y-coordinates. That is, you multiply each of them by -1. You want the opposite of the identity matrix, so matrix B.

4 0
2 years ago
You travel 80 km in the first 1.00 hour of a trip, 50 km in the next 0.50 hours, and 40 km in the final 0.25 hours. Calculate yo
olchik [2.2K]

The average speed is the ratio between the distance covered, and the time elapsed to cover that distance.

The total distance is the sum of the three distances covered:

d = 80km+50km+40km = 170km

Similarly, the total time elapsed is

1h + 0.5h + 0.25h = 1.75h

So, althought you didn't always travelled with the same speed, you globally covered 170km in 1.75 hours. This leads to an average speed of

\dfrac{170\text{km}}{1.75\text{h}} \approx 97.14 \dfrac{\text{km}}{\text{h}}

4 0
3 years ago
30 POINTS + BRAINLIEST!!! PLEASE HELP ASAP!!!
Oliga [24]

Answer:

CNBD

Step-by-step explanation:

From the diagram, we can see that:

\displaystyle BL\parallel CA

Then by Alternate Interior Angles:

\angle LBA\cong \angle CAB\text{ and } \angle BLC\cong \angle ACL

From vertical angles, we also know that:

\displaystyle \angle BKL\cong \angle AKC

This is all we can gather from the given image. Knowing only three pairs of angles cannot prove congruence, as proving congruence requires at least one side.

Congruence cannot be determined.

7 0
3 years ago
Read 2 more answers
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