Answer:
31
Step-by-step explanation:
6.2 x 5 = 31
or
6.2 + 6.2 + 6.2 + 6.2 + 6.2 = 31
Step-by-step explanation:
sin(2x) + cos(3x)
Use double angle formula sin(2x) = 2 sin x cos x.
Use triple angle formula cos(3x) = 4 cos³x − 3 cos x.
Substitute:
2 sin x cos x + 4 cos³x − 3 cos x
Answer:
7
Step-by-step explanation:
first and foremost the two consecutive numbers will be x and x + 1, which will equal to 2x + 1.
2x + 1 > 15
2x + 1 = 15
Collect like terms
2x = 15 - 1
2x = 14
Divide both sides by 2
x = 7
Answer:
14π
Step-by-step explanation:
The equation for circumference is
C = π* diameter
AB is the diameter, so the circumference is 14π
Answer:
x=44
Step-by-step explanation:
Making the equation in terms of x:
0.2x + 0.8 = 9.6
-0.8 -0.8
0.2x=8.8
*5 *5
x=44