Answer:
A
Step-by-step explanation:
3+7 is 10, not 11. Therefore, x cannot be 3.
The original equation: 8(5.95)+8(4)+8(3.60)+8(2.25)= $126.4
To answer the question you should add all of the numbers within the parenthesis together: 5.95+4+3.60+2.25= $15.8
Then multiply that answer times the total number of people: 8(15.8)= $126.4
Answer:
Step-by-step explanation:
sec(theta) is defined as: 
In the diagram you provided the hypotenuse of the triangle is sqrt(41) and the opposite side is 5, using these two sides, we can solve for the adjacent side by using the Pythagorean Theorem: 
So this gives us the equation where a=adjacent side:
Subtract 25 from both sides
Take the square root of both sides
So now plug this into the definition of sec(theta) and you get: . This is in most simplified form since 41, has no factors besides 41 and 1.
50% in 1/2 in fraction form
The answer would be the first one, combining 8 and -2
This is because the 2 like terms are 8x^2 and -2x^2. You can get this by looking in the problem. There are 2 terms with x^2 which means we have to combine them. One of them is 8x^2 (the 1st one) and the other is -2x^2 (since it says 7-2x^2)
If you combine these you will get 6x^2 [8+(-2)=6]
