Answer:
1 3/4
Step-by-step explanation:
If you split 3 1/2 in half (which would also be putting the amount in 2 groups) there would be 1 3/4 of a candy bar in each group. So therefore the answer is 1 3/4
Answer:
The value of x is 2.
Step-by-step explanation:
First, you have to make the left side into 1 fraction by making the denorminator the same :




Then you have to do cross multiplication :












Answer:
70.5°
Step-by-step explanation:
22² = (20)²+(18)² - 2(20)(18) cos X
484 = 400 + 324 - 720 cos X
-240 = -720 cosx
1/3 = cos X
= X
X = 70.52877937
We are asked to prove tan(θ / 2) = sin θ / (1 + cos θ). In this case, tan θ is equal to sin θ / cos θ. we can apply this to the equality. sin θ is equal to square root of (1-cos θ)/2 while cos θ is equal to <span>square root of (1 + cos θ)/2.
Hence, when we replace cos </span><span>θ with </span>square root of (1-cos θ)/2, we can prove already.