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vekshin1
3 years ago
14

Which is the best estimate of the circumference of this circle?

Mathematics
2 answers:
nalin [4]3 years ago
4 0

Answer:

Circumference is 9 units.

Step-by-step explanation:

According to the formula of circumference

Circumference = 2\pi\times (radius of circle)

Given, Radius i.e.   r = 1.5 units

  Circumference  = 2\times\frac{22}{7} \times 1.5

                             = \frac{660}{70}

                             = 9.43 units

Therefore, the best estimate of the circumference of this circle is 9 units.

ArbitrLikvidat [17]3 years ago
3 0

B  9 units

C = πd ( where d is the diameter )

here r = 1.5 ⇒ d = 2 × 1.5 = 3

as an estimate, approximate π to 3

C = 3 × 3 = 9 ← is the best estimate


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Determinan las siguientes tablas muestran magnitudes directamente correlaciones o directamente proporcionales
zheka24 [161]

Responder:

Los cuadros 89 y 91 presentan proporcionalidad directa

El cuadro 90 muestra una correlación directa.

Explicación paso a paso:

De la imagen adjunta:

Cuadro 89:

Para mostrar proporcionalidad directa:

y α x

y = kx; k = constante de proporcionalidad

Comprobando las tablas:

Cuadro 89:

A = 1,5; B = 3

B = kA; 3 = 1.5k

k = B / A

k = 3 / 1,5 = 2

Usando k = 2;

demuestre que B = 4 cuando A = 2; para establecer proporcionalidad directa.

B = 2 * 2 = 4

Por tanto, el cuadro 89 exhibe proporcionalidad directa

Comprobando las tablas:

Cuadro 90:

C = 2; D = 8

D = kC; 8 = 2k

k = 8/2 = 4

Usando k = 4;

demuestre que D = 9 cuando C = 3; para establecer proporcionalidad directa.

B

D = 4 * 3 = 12

De la tabla, D = 9;

Por tanto, el cuadro 90 presenta una correlación directa pero no una proporcionalidad directa.

Comprobando las tablas:

Cuadro 91:

E = 1; F = 1/2

F = kE; 1/2 = k

k = 1/2

Usando k = 1/2;

demuestre que F = 3/2 cuando E = 3; para establecer proporcionalidad directa.

F = 1/2 * 3 = 3/2

Por tanto, el cuadro 91 presenta proporcionalidad directa.

6 0
3 years ago
Use the three steps to solve the problem.
Mazyrski [523]
Let's assume a the age of Joe
b the age of James
a=b+10 (1)
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==>b=12
==>a=12+10=22
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James is 12 years's old.



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Step-by-step explanation:

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