Answer:
r = 104
Step-by-step explanation:
r - 36 = 68
r → 68 + 36 = 104
Answer:
x = -8
m∠BDC = 68°
General Formulas and Concepts:
<u>Pre-Algebra
</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Geometry
</u>
- Definition of a Line: A line is 180°
Step-by-step explanation:
<u>Step 1: Set up Equation</u>
m∠BDC + m∠CDA = 180°
(-7x + 12)° + (-8x + 48)° = 180°
<u>Step 2: Solve for x
</u>
- Combine like terms: -15x + 60 = 180
- Isolate x term: -15x = 120
- Isolate x: x = -8
<u>Step 3: Find m∠BDC
</u>
- Define: m∠BDC = (-7x + 12)°
- Substitute in x: m∠BDC = (-7(-8) + 12)°
- Multiply: m∠BDC = (56 + 12)°
- Add: m∠BDC = 68°
The next larger ten is . . . . . . 50 .
The next smaller ten is . . . . . . 40 .
. . . . . . 49 is closer to . . . . . . 50 than it is to . . . . . . 40 .
So the nearest ten is . . . . . . 50 .
Answer:
there is going to be a girl that says she has answers in a pdf don't go into it
it will gib=ve you a virus
Step-by-step explanation:
Answer:
2a +7
Step-by-step explanation: