The statement that is true is C
I think the Answer should be A
Answer:
x = 8
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Geometry</u>
- All angles in a triangle add up to 180°
Step-by-step explanation:
<u>Step 1: Set up Equation</u>
(7x - 1) + 80 + (6x - 3) = 180
<u>Step 2: Solve for </u><em><u>x</u></em>
- Combine like terms: 13x + 76 = 180
- Isolate <em>x</em> term: 13x = 104
- Isolate <em>x</em>: x = 8
Answer:
It would take 10 hours
Step-by-step explanation:
1 ) 70/4 = 17.5 The car travels 17.5 miles each hour
17.5 x 10 = 175 therefor it would take 10 hours
A right triangle has the two legs that form an angle of 90°, which means that the two legs are perpendicular.
In order to prove that FGH is a right triangle, you need to calculate the slopes of the lines passing through its vertexes and see if there is a pair of opposite reciprocals:
m = (y₂ - y₁) / (x₂ - x₁)
m(FG) = (-9 - 4) / (5 - 2) = -13/3
m(FH) = (-4 - 4) / (-3 - 2) = 8/5
m(HG) = (-4 -(-9)) / (-3 - 5) = -5/8
Since m(FH) and <span>m(HG) are opposite reciprocals, FH is perpendicuar to HG and FGH is a right triangle.</span>
