Find the value of x, rounded to the nearest tenth.

x≈12.5

Step-by-step explanation:

angle a=90°,angle b=28°,side c=11

a+b+Y=180°

Using

y=62°

Using the law of sines, we calculate unknown side x

c=11, a/c=sin a°/sin y°

a=c*sin a°/sin y°

a=11*sin 90°/sin 62°=12.46

12.46≈12.5

Answer is 12.5

Cos 28 = 11/x

X= 11/cos 28

X= 11/0.8829

X= 12.4589=~ 12.5

i need the options

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.