An expression is shown.



2.1×105 + 4.3×104



Which expression is equivalent?

A

2.53×104

B

2.53×105

C

6.4×105

D

6.4×109

25.3 × is the equivalent expression

Step-by-step explanation:

In this question, we are asked to select from the options the expression that is equivalent to the written expression.

2.1 ×  + 4.3 *

Now, we can factor out .

This gives;

{[2.1 × 10] + 4.3}

( 21 + 4.3)

= × 25.3

∞ this is your sign

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi