Answer:
−20°F, −19°F.
Step-by-step explanation:
We have been given that the record low temperatures for a town in Maine are −20°F for January and −19°F for February.
We know that while comparing two negative numbers, the more negative number is more away from zero. So more negative number would have less value than comparatively less negative number.
Since −20°F is 20 units below zero, so it will have less value than −19°F, which is 19 units below 0.
Therefore, our required order would be −20°F, −19°F.
A and D are complementary
B and C are supplementary
Complementary angles are 90 degrees 59+31=90
Supplementary angles are 180 degrees 119+61=180
Answer:
B
Step-by-step explanation:
Given
4x² - 72x = 0 ← factor out 4 from each term
4(x² - 18x) = 0
To complete the square
add/subtract (half the coefficient of the x- term)² to x² - 18x
4(x² + 2(- 9)x + 81 - 81) = 0
4(x - 9)² - 4(81) = 0
4(x - 9)² - 324 = 0 ( add 324 to both sides )
4(x - 9)² = 324 ( divide both sides by 4 )
(x - 9)² = 81 ( take the square root of both sides )
x - 9 = ± 
= ± 9 ( add 9 to both sides )
x = 9 ± 9
Then
x = 9 - 9 = 0
x = 9 + 9 = 18
Answer:
5 12 13 equals a right triangle
Yes, because 5y-2x=18 and 6x=-4y-10 are both linear equations in the same variables, they form a system of linear equations.
