Answer: The identity is verified. See the explanation.
Step-by-step explanation:
You must keep on mind the following identities:

Therefore, by substitution, you can rewrite the identity as shown below:

Simpliying, you obtain:

The identity is verified.
Two halfs equal one whole. think of it like this, an orange cut in half leaves you with two halfs, put them together and you have a whole. simple. multiplying by 2 just means adding a number two times.
1 half plus one half= 2halves= 1 whole
1half x 2= 2 halves=1 whole
Answer: 150 miles
Step-by-step explanation:
m = mile
40 + 0.25m = 25 + 0.35m
0.25 * 150 = 37.5
37.5 + 40 = 77.5
0.35 * 150 = 52.5
52.5 + 25 = 77.5
77.5 = 77.5
Answer:
X=-2
Step-by-step explanation:
3x=5x+4
subtract 5x from both sides
-2x=4
divide both sides by -2
x=-2