Answer:
m=3 and m=-3
Step-by-step explanation:
m^2 = 9
m = square root of 9
Since a positive or negative number squared produce a positive value, the answer is either positive or negative.
The y intercept of a graph containing the two points (3,1) and (7,-2) is 
<em><u>Solution:</u></em>
Given points are (3, 1) and (7, -2)
<em><u>The equation of line in slope intercept form is given as:</u></em>
y = mx + c ------- eqn 1
Where, "m" is the slope of line and "c" is the y intercept
<em><u>Let us first find the slope of line</u></em>
The slope of line is given as:

Here the points are (3, 1) and (7, -2)

Substituting in formula, we get

To find the y intercept:


Thus y -intercept is 
Let's check your answer. To do this, you would simply plug your answer into the equation and see if it works.
5(y - 3) - 2 (3 - 2y) = 6
5(3 - 3) - 2(3 - 2 × 3) = 6
The equation works!
Y = 3
Great work!
Answer:
$7.50
Step-by-step explanation:
15% of 50=7.5
Given:
Volume of the cone = π r² h/3
radius of the cone is half the radius of the cylinder ⇒ r/2
height of the cone is equal to the radius of the cylinder. ⇒ r
V = 3.14 * (r/2)² * r/3
V = 3.14 * r²/4 * r/3
V = 3.14r³ / 12