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3 years ago

if the area of a circle is represented by A=21π, what is the radius of the circle? round your answer to the nearest tenth

Mathematics

1 answer:

Reptile [31]3 years ago

5 0

The equation is actually
circle area = PI * radius^2
radius = square root (area / PI)

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Which of the tables represents a function ? Table P 8,3 1,7 5,4 Table Q 9,3 9,5 4,2. Table R 7,2 8,6 7,3. Table S 1,7 1,5 9,2 Ta

babymother [125]

Table P because it is a one-to-one relation.

The other 3 are one-to-many relations (eg table Q maps 9 on to 3 and 9 on to 5)

8 0

3 years ago

Taylor saw an American alligator at a zoo that measured Ask Your Teacher feet long. The record length of an American alligator i

lianna [129]

Answer:

The record alligator is $6\frac{1}{4}$ feet longer than the alligator Taylor saw.

Step-by-step explanation:

Taylor saw an American alligator at a zoo that measured $12\frac{11}{12}$ feet long. The record length of an American alligator is $19\frac{1}{6}$ feet long. How much longer is the record alligator than the alligator Taylor saw?

For this first convert the mixed fraction into an improper fraction.

$12\frac{11}{12}=\frac{155}{12}$

$19\frac{1}{6}=\frac{115}{6}$

Now subtract $\frac{155}{12}$ from $\frac{115}{6}$ .

$\frac{115}{6}-\frac{155}{12}=\frac{75}{12}=6\frac{1}{4}$

Hence, the record alligator is $6\frac{1}{4}$ feet longer than the alligator Taylor saw.

4 0

3 years ago

What is the surface area of the square pyramid

user100 [1]

Answer:

128 feet squared

Step-by-step explanation:

you multiply 4 by 4 to get 16 ,

then you multiply 7 by 4 and get 28,

also multiply 28 by 4 and get 112 ,

finally add 112 and 16 to get 128

6 0

3 years ago

Simplify:<br>4z+3/15+8q+2/15+6z-4q

Liono4ka [1.6K]

The answer would be 10z+1/3+4q

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3 years ago

(⅔)-⁴ (two over three to the power minus 4)<br><br>I need answer asap pleaseeeee

Fudgin [204]

Answer:

81/16

Step-by-step explanation:

(⅔)-⁴

81/16

= 5.0625

8 0

3 years ago