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disa [49]
3 years ago
10

A circular plate has circumference 21.4 inches. What is the area of this​ plate? Use 3.14 for pi.

Mathematics
1 answer:
Brut [27]3 years ago
8 0

Answer:

The area of this plate is 36.31\ \text{inches}^2.

Step-by-step explanation:

We have,

Circumference of a circular plate, C = 21.4 inches

The circumference of a circular shape is given by :

C=2\pi r

r is radius of circular shape

r=\dfrac{C}{2\pi}\\\\r=\dfrac{21.4}{2\times 3.14}\\\\r=3.4\ \text{inches}

Area of this plate is given by :

A=\pi r^2\\\\A=\pi (3.4)^2\\\\A=36.31\ \text{inches}^2

So, the area of this plate is 36.31\ \text{inches}^2.

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24n divided by k If n= 6 and k =8
Evgen [1.6K]

Answer:

24

Step-by-step explanation:

24(6)/(8)=

simplify

192/8=24

5 0
3 years ago
No question, just whoever needs free answers.
larisa86 [58]

Answer:

4 lol

Step-by-step explanation:

7 0
3 years ago
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A man buys 52 coconuts, but some are lost on his way home. If he evenly divides the amount of coconuts he has left among four pe
zhuklara [117]

Answer:

He lost 5 coconuts.

Step-by-step explanation:

When he divides the number left among 3 and 5 people the  remainder is 2 in each case so the number that each person gets must be 15 or a multiple of 15.

So if x is the number left when he reaches home, then:

2 = x mod 3 and

2 = x mod 5  

where x = 15 + 2 = 17 or  30 + 2 = 32  or 45 + 2 = 47.

But we also must satisfy 3 = x mod 4

If x = 17:

17 mod 4 = 1  so its not 17.

32 mod 4 = 0 so it's not 32.

47 mod 4 = 3 so x = 47.

Therefore the number  he lost = 52 - 47 = 5.

7 0
3 years ago
The velocity V of an object dropped from a tall building is given by V = V64d, where dis
ozzi

Answer:

d = 0.0625 m

Step-by-step explanation:

The velocity of an object dropped from a tall building is given by :

v=\sqrt{64d}

Where

d is the distance in feet

We need to find the distance when the velocity is 32 ft/s

Rearranging for d,

v^2=64d\\\\d=\dfrac{64}{v^2}

Put v = 32 ft/s

d=\dfrac{64}{32^2}\\\\d=0.0625\ m

So, the required distance is 0.0625 m.

5 0
3 years ago
The family of this graph?
muminat

Answer:

Step-by-step explanation:

The shape of this graph is that of a parabola.  In this case the parabola opens down.  The general form of the equation of such a parabola is

y = a(x - h)^2 + k, where (h, k) is the vertex and a is a coefficient to be determined.

In this particular case we can obtain the coordinates of the vertex (h, k) from the graph.  They are (3, 4).  Thus, h = 3 and k = 4.  The graph goes through (1.5, 0).  Use this information to determine the value of the coefficient a:

Then the equation of this parabola must be y = a(x - 3)^2 + 4.

0 = a(1.5 - 3)^2 + 4

Then:

0 = a(-1.5)^2 + 4, or

0 = 2.25a + 4, or

2.25a = -4, or

a = 16/9

Thus, the final result:  The equation of this parabola is

y = (16/9)(x - 3)^2 + 4

whose graph is a parabola that opens down and has vertex (3, 4).            

7 0
3 years ago
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