Help Please ~ 15 points

Rational vs Irrational

Alegbra 1

145.25 - rational irrational

^2√64 - rational irrational

-22 - rational irrational

0 - rational irrational

- rational irrational

√121 - rational irrational

0.6⁻ - rational irrational

The correct answer is all are rationals.

Step-by-step explanation:

Numbers that cannot be written as fraction of integers are irrationals.

145.25 is rational as it can be expressed as a fraction.

^2√64 is rational as this √64 is equal to 8.

-22 is a rational as integers are a subset of rationals only.

0 is a rational number.

√121 is rational as the value of √121 is 11 and 11 is rational.

0.6⁻ is rational as this can be expressed as fraction .

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form