Question

Someone please help!! 50 points! I have no idea how to do these so If someone could please give the steps and answer it would be greatly appreciated!

Answer 1

3. 97*

4. 43*

5. 4*

6. E = 15*

Explanation:

14 divided by 2 = 7 + 90 = 97

5 divided by 2 = 2.5 rounded to nearest tenth makes 3 + 40 = 43

8 divided by 2 = 4 -AB = 4B

DE3* x EF5* = 15

Answer 2

• MK = 7, DE = 4.2, m∠B = 48°, sin (E) = 4/5

Explanation:

Question 3

• This is a 30° right triangle
• MK is opposite to 30° angle ⇒ LK = 2MK ⇒
• MK = 14/2 = 7

Question 4

• FE = 5
• m∠F = 40°
• DE/FE = tan (F)
• DE = 5 tan (40°) = 4.2 (rounded)

Question 5

• AB = 8
• AC = 12
• cos (B) = 8/12 = 2/3
• m∠B = arccos (2/3) = 48° (rounded)

Question 6

• sin (E) = DF/EF = 4/5