Answer:
-20=k
Step-by-step explanation:
-14=k+6
-6 -6
-20=k
-14=-20+6
-14=-14
Answer: -5 degrees Celsius
Step-by-step explanation:
Temp at 2:00am = -2.7
2:00am is two hours after midnight
During that time the temperature has risen by 1.15 degrees every hour so has risen in total by:
1.15x2 = 2.3 degrees
-2.7-2.3=-5
It was -5 degrees at midnight
If you're solving for x, you'd move all the terms containing x to the left side of the equation:
d^2y/dx^2+4y/x-12y-cos^2(x)+sin^2(x)=0
If you're solving for y, you'd simplify both sides of the equation, then isolating the variable:
y=xcos(2x)
Answer:
Step-by-step explanation:
∠A + ∠B = 90 {∠A & ∠B are complementary}
x + 16 + x - 12 = 90
x + x + 16 - 12 = 90 {Combine like terms}
2x + 4 = 90 { Subtract 4 form both sides}
2x = 90 - 4
2x = 86 {divide both sides by 2
x = 86/2
x = 43
Answer:
135
Step-by-step explanation:
135+45=180
