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2 years ago

An advertisement for a circular rug says that the rug has a diameter of 6 feet. Find the relative error of this measurement

Mathematics

1 answer:

Aleonysh [2.5K]2 years ago

4 0

Answer:

1. 8.3%

Step-by-step explanation:

Relative error = absolute error/expected measurement

The expected measurement is given as 6 ft.

Now, the absolute error is usually equal to half of a unit of the measure.

This means the absolute error in this case is ½ × 1 = 0.5 ft

Thus, the exact measurement will be;

6 ± 0.5

Thus;

Relative error = 0.5/6

Relative error = 0.083

Expressing it in percentage gives 8.3%

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Sammy and David were selling water bottles to raise money for new football uniforms famous or 5 water bottles for every 3 water

ANTONII [103]

In the given question, we come to know that Sammy sold 5 bottles for every 3 water bottles sold by David. In this case we get the ratio as 5:3
Now this ratio indicates that the total number of bottles can be divided into 8 parts for finding out a single part. the total number of water bottles that are sold by Sammy and David together are 160.
Now on dividing this total number of bottles by 8 we get the 20 as one part.
The,
Number of Bottles sold by Sammy = 5 * 20
= 100
Number of bottles sold by David = 3 * 20
= 60
So Sammy sold 100 water bottles and David sold 60 water bottles from the total of 160 water bottles.

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3 years ago

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Delvig [45]

Answer:

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3 years ago

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ss7ja [257]

Answer:

2.5 cm is the radius

Step-by-step explanation:

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3 years ago

an electrician charges $55 per hour of electrical work plus a flat fee of 25$ as a service charge . if a customer's bill 190 whi

zhenek [66]

Answer:

$\large \boxed{\text{A. 3.0 h}}$

Step-by-step explanation:

The bill = $190

Less flat fee = 25

Work done = $165

$\text{Hours worked} = \$165 \times \dfrac{\text{1 h}}{\$55} = \textbf{3.0 h}\\\\\text{The electrician was on the job for $\large \boxed{\textbf{3.0 h}}$}$

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3 years ago

A baseball is hit with an initial upward philosophy of 70 ft./s from a height of 4 feet above the ground. The equation h= -16x^2

saul85 [17]

Answer:

x=4.34 seconds

Step-by-step explanation:

-16x^2+70x-2=0

$x=\frac{35+\sqrt{1193}}{16}$

x=4.34

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2 years ago