Answer:
The first one, the third one, and the fourth one
Step-by-step explanation:
The 1st one is the Pythagorean identity. One of the most essential trig identities you have to remember.
The second one is false because A is equal to 60 and b is equal to 30 and the left side turns into 0.5 while the other side becomes -0.5.
The third one is true since it is a distinction of the identity
=
(OR you can simply just subtract
from either side).
The fourth one is true since it's just a different version of
.
Answer:
21≤X<28
Or
X≥21+X<28
Step-by-step explanation:
Both equations mean the same thing
Given:
number of friends = 2 (Keith and Michelle)
total cost of meal plus tip = $53.70
total tip given = $9.60
Find: How much each friend paid for the meal excluding the tip.
Total amount paid : 53.70
less: total tip paid <u> - 9.60</u>
total cost of the meal: 44.10
divide: between 2 friends <u> ÷ 2 </u>
cost per friend 22.05
Keith and Michelle will each contribute $22.05 for the meal.
They will also contribute $4.80 each for the tip.
Each friend will contribute a total of $26.85 for the meal and tip.
It’s c just to let you know I have done this before
Well, since you didn't attach the options. I will try to simplify the problem for you.⬇
Problem➡8/9 ÷2/3
~How to solve it ⬇
8(3) / 9(2) = 24/18
So, that means that your answer might have to be
1 1/3~