Answer:
<em>The plumber will charge $275</em>
Step-by-step explanation:
<u>Models</u>
Models are used to explain and predict the behavior of real objects or systems and are used in a variety of scientific disciplines.
The situation described in the question asks us to build a mathematical model for the charges for the service of a plumber.
The base fee is often called the fixed fee, which charged even if there is no service time. The plumber charges a base fee of $55.
The variable fee is that who changes for each hour worked. The plumber charges $55 per hour, so the charge for t hours of service is 55t.
The total charges of the plumber are modeled as:
C(t)=55t+55
If the plumber works t=4 hours, the cost will be:
C(4)=55*4+55=$275
The plumber will charge $275
Area of rectangle = l × b = 16 × 8 = 128cm²
Area of 1 triangle = ½ × b × h = ½ × 2 × 2 = 2cm²
Area of 4 triangle = 2cm² × 4 = 8cm²
Area of shaded region
= Area of rectangle - Area of 4 triangle
= 128cm² - 8cm²
= 120cm²
Answer:
3+4i
Step-by-step explanation:
let x be the answer
(3-4i)x=25
x=25/(3-4i)
multiply by the conjugate
x=(25(3+4i))/25
x=3+4i
I hope this helps you
3x=14-2
3x=12
x=4
Answer:
6 ft = <u>2</u> yd
6 ft = 6 x 1 ft
= 6 x <u>2</u><u> </u>yd
= <u>1</u><u>2</u><u> </u>yd