Answer:
3/5
Step-by-step explanation:
sin theta=opposite/hypotenuse
4/5=opposite/hypotenuse
therefore opposite=4 and hypotenuse=5
for adjacent
using pythagoras theorem
a^2+b^2=c^2
opposite^2 + adjacent^2 =hypotenuse^2
4^2 + adjacent^2 =5^2
16 + adjacent^2 =25
adjacent^2 =25-16
adjacent =
adjacent=3
cos theta=adjacent/hypotenuse
=3/5
therefore the value of cos theta is 3/5
The correct answer would be 8
Answer:
Jacklyn is wrong because
Step-by-step explanation:
We have that :Jaclyn estimates that the square root of 50 in the following way:
Jacklyn is wrong because she made an error at
The correct expression is
This gives: