In which step did the student make an error?
Step 4 -
student solved for the radius of a circle with a
circumference of 12
Step 1: C = 2
Step 2: 121= 20
Step 3:22
Step 4:6 =
Step 5-6-
Step 6: Solving for r, the length of the radius
Solving fort, the length of the radius should be 65
cm

the one on the bottom left

step-by-step explanation:

all of the other ones have a specific pattern

.bjbjk.b,j.l.

step-by-step explanation:

the answer will be b x² +x-1

step-by-step explanation:

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