The solution to the systems of equations is (7, 3)
Given the systems of equations expressed as:
-x + 4y = 5 ....................1
x - 5y = -2 ...................... 2
Add both equations to have:
-x+x + 4y - 5y = 5 - 2
4y-5y = -3
-y = -3
y = 3
Substitute y = 3 into equation 1:
-x + 4(3) = 5
-x + 12 = 5
-x = 5 - 12
-x = -7
x = 7
Hence the solution to the systems of equations is (7, 3)
Learn more on simultaneous equations here: brainly.com/question/148035
Answer:
slope = - 
Step-by-step explanation:
Differentiating implicitly with respect to x
2x + 2y 
= 0
2y = - 2x
= - 
= - 
is the measure of the slope of the tangent
rearrange equation to find corresponding y-coordinate of x = - 2
y² = 16 - 4 = 12 = 2
⇒ y = ± 2
using x = - 2, y = - 2, then
= - 
= -
Answer:
V=pi r² h/3
Step-by-step explanation:
V=volume
R=radius
H=height
The Great War (WW1) killed many empires who had been around for hundreds of years. It introduced some very inhumane weapons such as gas, and was the 1st war when old tactics met new ones. Back then, a war on this scale has never been seen.
It also gave birth to many new nations
Step-by-step explanation:
<u>Step 1: Let's simplify step-by-step.</u>
<u>Step 2: Combine Like Terms:</u>
Answer:
Hope this helps.
