answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andre45 [30]
2 years ago
10

A students calculation was found to have a 15.6% error, and the actual value was determined to be 25.7 mL. What are the two poss

ible values for the students experimental measurement?
Mathematics
2 answers:
Volgvan2 years ago
8 0
The actual value = 25.7 ml
The error = 15.6%
This means that the value of error = 0.156 * 25.7 = 4.0092 ml

Now, the error percentage found means that the student got the value either greater than the actual one with the value of error or less than the actual one with the value of error.

This means that the two possible readings are:
either : 25.7 + 4.0092  = 29.7092 ml
or : 25.7 - 4.0092  = 21.6908 ml

finlep [7]2 years ago
6 0
To find what 15.6% of 25.7 is, multiply 25.7 by 15.6% in decimal form which is .156
25.7 x 0.156 = 3.9936
The answer to this is 25.7 plus or minus 3.9936 meaning your two possible values for the student's experiment are 29.4936 or 21.7064
You might be interested in
Jada solved the equation Negative StartFraction 4 over 9 EndFraction = StartFraction x over 108 EndFraction for x using the step
Lilit [14]

Answer: First option.

Step-by-step explanation:

The complete exercise is attached.

In order to solve this exercise, it is necessary to remember the following property:

The Multiplication property of Equality states that:

If\ a=b\ then\ a*c=b*c

In this case, the equation that Jada had is the folllowing:

-\frac{4}{9}=\frac{x}{108}

Jada needed to solve for the variable "x" in order to find its value.

The correct procedure to solve for for "x" is to multiply both sides of the equation by 108. Then, you get:

(108)(-\frac{4}{9})=(\frac{x}{108})(108)\\\\-48=x

As you can notice in the picture, Jada did not multiply both sides of the equation by 108, but multiplied the left side by -\frac{4}{9}<em>  </em>and the right side by -\frac{9}{4}.

Therefore,you can conclude that Jada should have multiplied both sides of the equation by 108.

3 0
2 years ago
Read 2 more answers
What is 2 divided 1 6/7 ? Please answer
Aliun [14]
If you would like to divide 2 by 1 6/7, you can do this using the following steps:

1 6/7 = 13/7

2 / 1 6/7 = 2 / 13/7 = 2/1 / 13/7 = 2/1 * 7/13 = 14/13 = 1 1/13

The correct result would be 1 1/13.
6 0
2 years ago
The parent function f(x) = x3 is represented by graph A. Graph A is transformed to get graph B and graph C. Write the functions
Alekssandra [29.7K]
Graph B represents the function g(x)=x^3-2 Graph C represents the function h(x)=2x^3
4 0
2 years ago
Read 2 more answers
From 1994 to 1995 the sales of a book decreased by 80%. If the sales in 1996 for the same as in 1994, By what percent did the in
zheka24 [161]

Answer:

400%

Step-by-step explanation:

Let the sales be "100" in 1994

Since, it decreased 80%, the sales was:

80% = 80/100 = 0.8

0.8 * 100 = 80 (decreased by 80)

So, it was

Sales in 1995: 100 - 80 = 20

Sales in 1996 was same as in 1994, so that's 100

Thus,

Sales in 1994: 100

Sales in 1995: 20

Sales in 1996: 100

We need to find percentage increase form 1995 to 1996, that is what percentage increase is from 20 to 100?

We will use the formula:

\frac{New-Old}{Old}*100

Where

New is 100

Old is 20

SO, we have:

\frac{New-Old}{Old}*100\\=\frac{100-20}{20}*100\\=4*100\\=400

So, it increased by 400%

3 0
2 years ago
Consider a sample with a mean of 500 and a standard deviation of 100. What are the z-scores for the following data values: 560,
julsineya [31]

Answer:

z-score for value 560 = 0.6

z-score for value 650 = 1.5

z-score for value 500 = 0

z-score for value 450 = -0.5

z-score for value 300 = -2

Step-by-step explanation:

We are given a sample with a mean of 500 and a standard deviation of 100.

i.e., \mu = 500 and \sigma = 100

The z score distribution is given by;

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

where X represents the data values;

  • So, z score for value 560 is;

                 z score = \frac{560-500}{100} = 0.6

  • So, z score for value 650 is;

                 z score = \frac{650-500}{100} = 1.5

  • So, z score for value 500 is;

                 z score = \frac{500-500}{100} = 0

  • So, z score for value 450 is;

                 z score = \frac{450-500}{100} = -0.5

  • So, z score for value 300 is;

                 z score = \frac{300-500}{100} = -2

7 0
2 years ago
Other questions:
  • Mrs. Hernandez bought 18 pens for her class. Highlighters cost $3 each, and gel pens cost$2.50 each. She spent a total of $50. W
    12·1 answer
  • On Saturday, Craig rode his bike 5/8 of a mile. On Saturday, he rode his bike 1/2 of a mile. Craig added 5/8+1/2=6/10and plotted
    11·1 answer
  • Is the inverse of the function shown below also a function? Explain your answer.<br>     
    7·2 answers
  • A home’s value increases at an average rate of 5.5% each year. The current value is $120,000. What function can be used to find
    6·2 answers
  • Eva, the owner of eva's second time around wedding dresses, currently has five dresses to be altered, shown in the order in whic
    11·2 answers
  • 1) Consider the sequence:
    9·2 answers
  • The following differential equation is separable as it is of the form dP/dt = g(P)h(t).
    11·1 answer
  • Graph the line that represents a proportional relationship between yyy and xxx where the unit rate of change of yyy with respect
    11·2 answers
  • Given: l || m; ∠1 ∠3 Prove: p || q Horizontal and parallel lines l and m are intersected by parallel lines p and q. At the inter
    14·2 answers
  • Which geometric solids would model the tent?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!