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3 years ago

7

David measured a line to be 13.5 inches long. If the actual length of the line is 16.6 inches, then what was the percent error o

f the measurement, to the nearest tenth of a percent?

2 answers:

kompoz [17]3 years ago

7 0

Answer:-23

Step-by-step explanation:

Scorpion4ik [409]3 years ago

5 0

Answer:

18.67

Step-by-step explanation:

(l2-l1)/l2 * 100%

where l2=16.6

l1=13.5

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Answer: 80%. Hope this helps, please consider making me Brainliest.

Step-by-step explanation:

To find the percentage, divide the sale cost by the original cost:

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Let's multiply both sides by 10 to make the operation easier:

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1 year ago

You have 100 feet of fencing and decide to make a rectangular garden. What is the largest area enclosed

k0ka [10]

Answer:

625 ft^2

Step-by-step explanation:

Given

$P = 100$ --- perimeter

Required

The largest area

The perimeter is calculated as:

$P = 2 * ( L + W)$

So, we have:

$2 * ( L + W) = 100$

Divide both sides by 2

$L + W = 50$

Make L the subject

$L = 50 - W$

The area is calculated as:

$A= L * W$

Substitute $L = 50 - W$

$A= (50 - W) * W$

Open bracket

$A = 50W - W^2$

Differentiate with respect to W

$A' = 50 -2W$

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Collect like terms

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3 0

2 years ago

A tabletop in the shape of a trapezoid has an area of 5,658 square centimeters. Its longer base measures 119 centimeters, and th

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The formula for finding the area of a trapezoid is: sum of bases*height*1/2
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92*height=5658
height=61.5cm.

Check:
119+65=184
184*61.5=11316
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C and D

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