Answer:
Step-by-step explanation:
Given
See attachment for circle O
Required
Find
The sum of angles in a semi-circle is 180 degrees.
So:
This gives:
Hence, the equation is:
Step-by-step explanation:Step-by-step explanation:
For Sienna to be able to take the square root of both sides while solving a quadratic equation, she must have an expression with square on at least, the side that contains the variable she is trying to determine. Equation of the form:
(x + a) ² = b
'a' and 'b' could be any number, -1, 0, 1/3, -5/6, anything really.
So, she can take square roots of both sides then, like this
√(x + a)² = √b
x + a = ±√b
x = -a ± √b
Square roots always cancel out squares, and the '±' is because a square is satisfies by both + and -, 3² = 9, and (-3)² = 9.
It is the nature of the problem being solved that determines if we take just one or both of these answers.
6v+4w-4
Because you do -*-6v=positive 6v then -*-4w=positive 4w and then -*4=-4 and that takes care of the parenthesis
Basically you multiply the outside number or sign by all things inside the parenthesis
So in this problem you multiplied the negative sign by all the things inside the parenthesis
A rectangular solid with a square base has a volume of 8000 cubic inches<span>.</span>
Answer:
5.5
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
(8.1 + 7.4) - 25 ÷ 2.5
<u>Step 2: Evaluate</u>
- (Parenthesis) Add: 15.5 - 25 ÷ 2.5
- Divide: 15.5 - 10
- Subtract: 5.5