Question

Please answer this math question asap!!! 30 points and brainliest!! Only brainliest IF YOU SHOW YOUR WORK!! thank you! Round the final answer to the nearest tenth of a metre.

Before you start!!! Test your calculator to make sure it is in degrees. Find sine of 90, if it equals 1

you are ready to start. If it does not equal 1, you are in radians and must switch to degrees.

Answer 1

Answer:

7.14(2 dp)

Step-by-step explanation:

7/sin78 =x/sin 90

7sin90/sin78=x

plug into calculator

x=7.156384164

Answer 2

Answer:

(c)6.8

Step-by-step explanation:

sin78°=x/7

x=6.8

here

x=hight of wall

7=ladder=hyperbolic