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svet-max [94.6K]
2 years ago
5

Grayson measured a line to be 10.9 inches long. If the actual length of the line is 13.4 inches, then what was the percent error

of the measurement, to the nearest tenth of a percent?
Mathematics
1 answer:
aksik [14]2 years ago
7 0

The percent error of the measurement, to the nearest tenth of a percent is 18.6%

<h3>Calculating percent error</h3>

The formula for calculating the percent error is expressed as:

%error = actual - measure/actual * 100

Given the following

actual length = 13.4 in

Measured =10.9in

Substitute

%error = 13.4-10.9/13.4 * 100
%error = 2.5/13.4 * 100
%error = 18.65%

Hence the percent error of the measurement, to the nearest tenth of a percent is 18.6%

Learn more on percent error here; brainly.com/question/1600371

#SPJ1

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Helicopters can land on circular pads. The area of a landing pad is 1,962.5 square feet. What is the radius of the pad? Use 3.14
notsponge [240]

Answer:

25 ft

Step-by-step explanation:

The area of this landing pad is 1,962.5 ft², which equals πr².

We solve this equation for r²:

       1962.5 ft²

r² = -----------------  =  625 ft²

             3.14

Taking the square root of both sides, we get:

r = √(625 ft²) = 25 ft

The radius is 25 ft.

5 0
3 years ago
Read 2 more answers
Count the number of 5-digit numbers (in the decimal system; integers from 10000 to 99999) which are not divisible by 11.
Alexxandr [17]

Answer:

So total number which is not divisible by 11 = 89999-8181 = 81819  

Step-by-step explanation:

We have to find the total numbers which are not divisible by 11 from 10000 to 99999

Total number from 10000 to 99999 = 99999-10000+1=90000

Just after 10000 the number which is divisible by 11 is 10010

And just below 99999 the number which is divisible by 11 is 99990

Using AP formula

T_N=a+(n-1)d, here a is first term, d is common difference and n is number of terms

So 99990=10010+(n-1)11

n-1 = 8180

n= 8181

So total number which is not divisible by 11 = 90000-8181 = 81819

4 0
3 years ago
I really need help with this question I’m taking a test it’s urgent !!
dimaraw [331]

Answer:

EF = 10

Step-by-step explanation:

QUICK

9/15 = 6/x

x=10

8 0
3 years ago
The measure of 1 in the diagram below is 113º.<br><br> What is the measure of &lt;4?
Leokris [45]
The answer is 67 degrees
7 0
3 years ago
How would u do this w/o plugging in the numbers?
nordsb [41]
First isolate y for each equation so that y = x^2 + 3 and y = 2x^2 + 2 now set those equal to eachother and solve for x, 

x^2 + 3 = 2x^2 + 2
= √x^2 = <span>√1
x is +- 1

then plug in x for one of the original equations y = 1^2 + 3 = 4

x = +-1
y = 4</span>
3 0
3 years ago
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