I’m in a hurry ,it’s 2 short problems.

Step by step

Step 1 of 2: Convert decimal to fraction.

Convert decimal to fraction

0.282 =

282 over 1000

282

1000

Step 2 of 2: Simplify.

Simplify

282 over 1000

282

1000

=

141 over 500

141

500

Step 2 of 2: Simplify, sub-step a: Reduce fraction to lowest terms.

Reduce fraction to lowest terms

282 over 1000

282

1000

=

( 282 ÷ 2 ) over ( 1000 ÷ 2 )

282 ÷ 2

1000 ÷ 2

=

141 over 500

141

500

2 is the greatest common divisor of 282 and 1000. Reduce by dividing both numerator and denominator by 2.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation: