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Sauron [17]
3 years ago
14

A professional carpet cleaner service charges $30 plus $25.50 per hour to come to your home. If your total bill from this compan

y is $119.25 before taxes, how many hours were you charged?
Mathematics
1 answer:
andrew-mc [135]3 years ago
4 0

Answer:

3.5 hours

Step-by-step explanation:

30 + 25.50x = 119.25 \\ 25.50x = 89.25 \\ x = 3.5

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A cylinder has a radius of 8 meters and a height of 4 meters. .
Novay_Z [31]
<h2><u>Solution</u> :-</h2>

Given : Radius of cylinder = 8 m

Height = 4 m

Volume of cylinder = πr²h cu. units

= 22/7 × 8 × 8 × 4 m³

= 804.57 m³ (approx.)

Curved surface area = 2πrh sq. units

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= 201.14 m² (approx.)

Total surface area = 2πr(r + h) sq. units

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4 0
3 years ago
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zepelin [54]

tan( 20 ) + 4 Sin( 20 ) =

( Sin( 20 ) / Cos( 20 ) ) + 4 Sin( 20 ) =

Sin( 20 ) + 4 Sin( 20 ).Cos( 20 ) / Cos( 20 ) =

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Sin( 20 ) + 2 × Sin( 40 ) / Cos( 20 ) =

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Sin( 20 ) + 2Cos( 50 ) / Cos ( 20 ) =

Sin( 20 ) + 2Cos( 20 + 30 ) / Cos( 20 ) =

________________________________

2 × Cos( 30 + 20 ) =

2 × [ Cos(30).Cos(20) - Sin(30).Sin(20) ] =

2 × [ √3/2 × Cos(20) - 1/2 × Sin(20) ] =

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Sin( 20 ) + 2Cos ( 20 + 30 ) / Cos( 20 ) =

Sin( 20 ) + √3 Cos(20) - Sin(20) / Cos(20) =

Sin(20) - Sin(20) + √3 Cos(20) / Cos(20) =

0 + √3 Cos(20) / Cos(20) =

√3 Cos(20) / Cos(20) =

Cos(20) simplifies from the numerator and denominator of fraction

√3 × 1 / 1 =

√3

And we're done ....

5 0
2 years ago
If anyone can i help me
natulia [17]

Answer:

x=9.4

x=9.43

Step-by-step explanation:

I used the Pythagorean theorem.

Have a nice day!

and can I maybe have brainliest? Thanks!

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