Answer:
w = 36
Step-by-step explanation:
You can make a ratio 98 : 84 = 42 : w
49w = 1764
w = 36
Answer: 182.075
Step-by-step explanation: 145.66 divided by 0.8 =182.0.75
Answer: X can not be 11 or higher, so that means this problem will be 10 or lower. There for the value of X=6
Step-by-step explanation:
4 sin^2 θ + 13cos^2 θ = 7
sin^2 θ = 1 - cos^ θ
4 - 4cos^2 θ + 13cos^2 θ = 7
9cos^2 θ = 3
cos^2 θ = 1/3
cos θ = # (1/3) # - square root
Square root of (1/3) has +1/3 and -1/3 as values of cos
Find the key angle by doing the cos inverse of #1/3
K.A = cos^-1 #(1/3) = 0.955
θ lies in all 4 quadrants
The values of θ are:
θ = 0.955, 2.186, 4.096, 7.23
Ignore 0.955, 2.186, 4.096, 7.23 as they are out of range pi/2 = 1.571
The the value of θ = 0.955 = 0.96 (to 2 d.p) radian
Hope it helped!
Answer:
D. The equation has a variable multiplied by itself. A squared variable.
Step-by-step explanation:
A quadratic equation will always start with a term being squared. For example, 
+ 5x + 7 = 44. Another example would be 
+ 2x - 10 = 12. These are just random numbers, but the equation will always look the same! Hope this helps!
