Need help with this answer ASAP can some teach me how to do it

Step-by-step explanation:

In a right triangle, 30 is the adjacent side, and x is the hypotenuse.

cosθ = adjacent / hypotenuse

Substitute the give numbers.

cos 48° = 30 / x

x = 44.8 (corr. to the nearest tenth)

x = 45 units

Step-by-step explanation:

The angle has a side adjacent to it while the hypotenuse is missing.

Sine = opposite / hypotenuse

Cosine = adjacent / hypotenuse

Tangent = opposite / adjacent

From the following functions, cosine is the suitable function to solve this problem.

cosΘ = adjacent / hypotenuse

cos(48) = 30 / x

x = 30 / cos(48)

x = 44.8 ≈ 45

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !