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algol13
2 years ago
11

Langston estimated the temperature to be 45°F . The thermometer showed the actual temperature to be 50°F. Complete the steps bel

ow to find the percent error of Langston’s estimate.
Mathematics
1 answer:
7nadin3 [17]2 years ago
3 0

The percentage error is 11.1%

<h3>What is percentage error?</h3>

Percentage error is simply the difference between the exact and the estimated values as a percentage

The given parameters are:

  • Estimate = 45
  • Actual = 50

The percentage error is then calculated as:

\% E = \frac{50 - 45}{45} \times 100\%

Evaluate the difference

\% E = \frac{5}{45} \times 100\%

So, we have:

\% E = \frac{500}{45} \%

\% E = 11.1\%

Hence, the percentage error is 11.1%

Read more about percentage errors at:

brainly.com/question/5493941

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Identify the number of decimal places in each factor.
const2013 [10]

Answer:

no

Step-by-step explanation:

4 0
3 years ago
In 2014, the population of Hong Kong was estimated to be approximately 7,112,688 people. The city covers an area of approximatel
ratelena [41]
We know that

Population density<span> is a measurement of population per unit area
</span>[population density]=population/area-----><span>7,112,688/426.25----> 16686.66
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the answer is
</span>16687 person/square mile
8 0
4 years ago
Infiniti sells 8 different models of cars, with 5 different trim levels and 5 color choices. What is the total amount of options
solniwko [45]

Answer:

200

Step-by-step explanation:

Infiniti sells 8 different models of cars, with 5 different trim levels and 5 color choices.

Now, 8 different models of cars with 5 different trim levels have (8 × 5) = 40 choices.

Similarly, with  8 different models of cars, with 5 different trim levels and 5 color choices, there will be total (40 × 5) = 200 options one could choose. ( Answer )

4 0
3 years ago
Many states assess the skills of their students in various grades. One program that is available for this purpose is the Nationa
Nataly [62]

Answer:

A score of 314 is needed to be in the top 25% of students who take this exam.

Step-by-step explanation:

We are given that one of the tests provided by the NAEP assesses the reading skills of twelfth-grade students. In recent years, the national mean score was 289 and the standard deviation was 37.

Let X = <u><em>scores of the tests provided by the NAEP</em></u>

The z-score probability distribution for the normal distribution is given by;

                           Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = national mean score = 289

           \sigma = standard deviation = 37

Now, we have to find how high a score is needed to be in the top 25% of students who take this exam, that means;

            P(X > x) = 0.25     {where x is the required score}

            P( \frac{X-\mu}{\sigma} > \frac{x-289}{37} ) = 0.25

            P(Z > \frac{x-289}{37} ) = 0.25

In the z table, the critial value of z that represents the top 25% of the area is given as 0.6745, that is;

                        \frac{x-289}{37}=0.6745

                        {x-289}=0.6745\times 37

                        x = 289 + 24.96 = 313.96 ≈ 314

Hence, a score of 314 is needed to be in the top 25% of students who take this exam.

7 0
3 years ago
512, 256, 128, 64, __, __, __, ...​
Cerrena [4.2K]

The complete pattern is: 512, 256, 128, 64, 32, 16, 8, ( and extended ) 4, 2, 1!

I do this pattern in my head literally all the time!

4 0
3 years ago
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