-3 + y = -8
The sum ( + ) of y and -3 is ( = ) -8
Answer:
cos (12+10) = cos (22)
Step-by-step explanation:
Cos 12* cos 10* - sin 12* sin 10*
Appling the trig identity: cos (a + b) = cos a.cos b - sin a.sin b
inputing the values of a and b
cos (12 + 10) = cos 12cos 10 - sin 12sin 10 = cos (22)
g(5) means we substitute every x in the equation with a 5.
g(5) = (5)^2 - 4.
g(5) = 21.
We are given a right triangle whose legs we name as x, x+2 and x+4. The Pythagorean theorem states that the square of the hypotenuse's length is equal to sum of the squares of its legs. hence, we apply this to the given data:
a2 + b2 = c2
We substitute the given data
x2 + (x+2)2 = (x+4)2
We expound the given squares
x2 + x2+ 4x + 4 = x2 + 8x +16
We group next the like terms
2x2-x2 = 8x -4x + 16 -4
x2 = 4x + 12
(x2-4x-12) = 0
we factor the given quadratic equation
(x-6)*(x+2) = 0
x1 = 6
x2 = -2
The valid solution set would be 6 since there are no negative measurements, so the answer to this problem would be 6+2 = 8 units.
Answer:
513.9540158 or 514
Step-by-step explanation:
What you have to do is do the exponents inside the parenthesis first.
6^5=7,776.
7^3=343. They were over each other like this
7,776/343=22.67055394.
You then square that to get
513.9540158 or 514