You would write the 80.5 on the outside 418.6 on the inside. You can't divide by a decimal so you have to move the decimal point as many times as you need to on the outside number. You only have to move it over once in the80.5 so it is now 805. You do the same thing to the inside so it it is 4186. You are now dividing 4186 by 805. The answer is 5.2

3 0

2 years ago

Please answer the questions below

liubo4ka [24]

Answer:

see explanation

Step-by-step explanation:

(3)

Parallel lines have equal slopes

the equation of a line in sloipe- intercept form is

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

y = $\frac{1}{4}$ x + 5 ⇒ m = $\frac{1}{4}$

y = 4x + 5 ⇒ m = 4

y = - 4x + 5 ⇒ m = - 4

y = - 4x - 9 ⇒ m = - 4

the 3rd and 4th options have equal slopes and are parallel

(4)

given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$

y = $\frac{1}{6}$ x + 4 ⇒ m = $\frac{1}{6}$

y = - $\frac{1}{6}$ x + 5 ⇒ m = - $\frac{1}{6}$

y = $\frac{1}{6}$ x + 3 ⇒ m = $\frac{1}{6}$

y = 6x + 3 ⇒ m = 6

note that a slope of m = 6 , has a perpendicular slope of

$m_{perpendicular}$ = - $\frac{1}{6}$

the 2nd and 4th lines are perpendicular

6 0

2 years ago