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Artyom0805 [142]

4 years ago

8

A cable installer charges $42.50 per hour plus a $60 service charge your fathers firm hires him to hook up his company Internet

service find the total charges if it takes the cable installer 3.5 hours to complete the task

1 answer:

Maru [420]4 years ago

7 0

208.75$ is the total cost

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Find the volume of a right circular cone that has a height of 18.8 m and a base with a

Novosadov [1.4K]

Step-by-step explanation:

Height of the right circular cone = 18.8 metres

And base is 19.3 metres

Volume of the right circular cylinder is given by,

= πr²h

= 3.14 × (19.3)² × 18.8

= 21999.98(approx.) cubic metre

Rounding off nearest tenth

= 21999 cubic metres

7 0

3 years ago

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a pot of water is being heated up. the temperature of the water can be modeled by the equation with y representing the temperatu

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What was the awnser!? Srry I need help

Step-by-step explanation:

6 0

3 years ago

What is the correct order of operations for simplifying the expression (x+3)^2-(x^2+9)/2x^2?

kramer

Answer:

The given expression is simplified as $\frac{(x+3)^2-(x^2 +9)} {2x^2} = \frac{3}{x}$

Step-by-step explanation:

Here, the given expression is:

$\frac{(x+3)^2-(x^2 +9)} {2x^2}$

Now, with ALGEBRAIC IDENTITIES:

$(a+b)^2 = a^2 + b^2 + 2ab$

Now, similarly: $(x+3)^2 = x^2 + (3)^2 + 2x(3) = (x^2 + 9 + 6x)$

Now, substituting the values in the given expression, we get:

$\frac{(x+3)^2-(x^2 +9)} {2x^2} \implies \frac{(x^2 + 9 + 6x)-(x^2 +9)} {2x^2}\\= \frac{(x^2 + 9 + 6x-x^2 -9)} {2x^2} \\= \frac{ 6x} {2x^2} = \frac{3}{x}$

Hence, the given expression $\frac{(x+3)^2-(x^2 +9)} {2x^2} = \frac{3}{x}$

4 0

3 years ago

Is 3/8 is greater than,less than,or equal to 4/6

stiks02 [169]

3/8 is less than 4/6

4 0

3 years ago

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Given: circle O with tangent AB mBC= 2x -16; mCD = x+40; mDE = x; mEB = 60 <br><br>find the x

murzikaleks [220]

Answer:

69

Step-by-step explanation:

All the given arcs cover the entire circle circumference, so their measures add up to a full 360.

(2x - 16) + (x + 40) + x + 60 = 360

4x + 84 = 360

4x = 276

x = 69

6 0

4 years ago