Answer:
Step-by-step explanation:
a) Given cos2theta=28/53 and 0degrees< theta < 90degrees
From cos2theta=28/53
b) Given
If cos theta 0, this means we need to look for the quadrant where sin is negative and cos is positive. That will be the fourth quadrant. In the fourth quadrant, theta = 360 - 31.95° = 328.05°
2theta = 2 * 328.05
2theta = 656.1°
c) Given tan x=2 and cos x<0, lets find the angle of x first.
If tan x = 2
x = tan^-1 2
x = 63.4°
Sine cos is less than 0, then we need to find the angle of x where tan is positive and cos is negative. That will be the third quadrant. In the third quadrant, ew value of x = 180+63.4
x = 243.4°
Since we are to find 2x,
2x = 2(243.4)
2x = 486.8°
Answer:
X>2
Step-by-step explanation:
Subtract
1
1 from both sides. Simplify
5
−
1
5−1 to
4
4. Divide both sides by
2
2. Simplify
4
2
2
4
to
2
You can use cymath
Answer:
c, d
Step-by-step explanation:
26*10= 260 total paid
260-219.98 = 40.02
Answer:
A)x=13
Step-by-step explanation:-5x+2=67 -5x=65 x=13
This is the equations of a parabola
y = 3x^2 - 4x - 1 graphed is a parabolic arc