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3 years ago

6

A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost, C

, after h hours of service. What will be the total cost for 8 hours of work? 10 hours of work?

1 answer:

Alex787 [66]3 years ago

4 0

C= 25$ + 50$ * h

8 hours 425$

10 hours 525$

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Find the area of the shaded region. Round the the nearest tenth.

Brums [2.3K]

Answer:

226.084 sq.m.

Step-by-step explanation:

Radius of circle = 18.6 cm

Area of sector = $\frac{\theta}{360^{\circ} }\pi r^2$

Area of sector = $\frac{123}{360} \times 3.14 \times (18.6)^2$

Area of sector = $371.157 m^2$

Area of triangle = $\frac{1}{2} \times a \times b \times Sin x$

a = OA = radius = 18.6 cm

b = OB = radius = 18.6 cm

x =123 °

Substitute the values in the formula

Area of triangle = $\frac{1}{2} \times 18.6 \times 18.6 \times Sin 123$

Area of triangle = $145.073 m^2$

So, Area of shaded region = Area of sector - Area of triangle

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= $226.084 m^2$

Hence the area of the shaded region is 226.084 sq.m.

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3 years ago

68°<br> radius=4.2cm<br> A sector of a circle is shown. Find its area, rounded to the nearest tenth.

andrezito [222]

Answer:

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Step-by-step explanation:

8 0

2 years ago

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andrew11 [14]

Answer:

The last option has another result than the others.

Step-by-step explanation:

The first option answer is 7/2

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2 years ago

Joseph wants to line his garden with a fence that cost $2.25 per foot. The length of the garden is 6 yards and the width is 2.5

Galina-37 [17]

Answer:

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Step-by-step explanation:

Perimeter of a rectangle = 2W + 2L

(where W is the width and L is the length)

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width = 2.5 yd
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⇒ perimeter = (2 x 2.5) + (2 x 6)

= 5 + 12

= 17 yd

Given:

cost of fence = $2.25 per foot

⇒ total cost = 17 x 2.25

= $38.25

7 0

2 years ago

Read 2 more answers