For perpendicular lines, m1m2 = -1 or m2 = -1/m1; where m1 and m2 are the slopes of the lines.
Here line 1 is 2x - y - 7 = 0
y = 2x - 7; Hence m1 = 2
m2 = -1/2
Required equation y - y1 = m2(x - x1)
y - (-1) = -1/2(x - 4)
y + 1 = -1/2x + 2
y = -1/2x + 2 - 1
y = -1/2x + 1
Answer:
7238.23ft Cubed
Step-by-step explanation:
To get the answer you plug the value of the radius in to the equation >
V = 4/3πr³
Answer:
m<1 = 175 degrees
Step-by-step explanation:
3x + 10 = 2x + 15
-2x - 10 = -2x - 10
x = 5
180 - 5 = 175 degrees
Answer:
1/4 is 25% or 0.25
Step-by-step explanation:

<em><u>Solution:</u></em>
Given that we have to multiply the polynomials

Multiplying polynomials is similar to multiplying numbers
When you multiply two terms together you must multiply the coefficient (numbers) and add the exponents
Let us multiply the given polynomials

Multiply each term in first bracket with each term in second bracket

Add the exponents and multiply the coefficients

Combine the like terms -30x and 48x

Combine the like terms 

Thus the polynomials has been multiplied