2x+4=7 subtract 4 from both sides
2x=3 divide both sides by 2
x=3/2
x=1.5
Oh. It's rounding. So, for example, depending what you were told to round to, the second problem would be 760-330=430
Area of square =6*6= 36 cm^2
Area of trapezoid =1/2( base1+base2)*height
base 1=7
base2=21-6=15
height=6
Area of trapezoid =1/2( 7+15)*6= 66
whole area = area of square + area of trapezoid= 36+66=102
Answer 102
Answer:


General Formulas and Concepts:
- Order of Operations: BPEMDAS
- Distance Formula:

- Midpoint Formula:

Step-by-step explanation:
<u>Step 1: Define</u>
(5, -1)
(-9, -1)
<u>Step 2: Find distance </u><em><u>d</u></em>
- Substitute:

- Simplify:

- Subtract/Add:

- Evaluate:

- Evaluate:

<u>Step 3: Find Midpoint</u>
- Substitute:

- Subtract:

- Divide:
