1answer.
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
larisa86 [58]
3 years ago
6

Which best describes the error in finding the percent increase from 18 to 26? The denominator should be 18, which is the origina

l amount. The numerator should be 18, which is the original amount. The numerator should be 26, which is the new amount. The denominator should be 18, which is the new amount. The expression was simplified incorrectly. Question 2 Correct the error. Round your answer to the nearest whole number. The percent increase from 18 to 26 is about %.
Mathematics
1 answer:
scoray [572]3 years ago
8 0

Answer:

The percentage increase is 44.44%

What best describes the error is that the denominator should be 18 which is the original amount

Step-by-step explanation:

Here, we are to calculate the percentage increase from 18 to 26

Mathematically, we can calculate this with the following formula;

(New value - old value)/old value * 100%

Where the new value is 26 and the old value is 18. Plugging these values, we have;

(26-18)/18 * 100%

8/18 * 100% = 44.44% increase

You might be interested in
Which of the following statements are true?
bezimeni [28]

Answer:

A, B, and C are all true.

Step-by-step explanation:

A. 6 is neither a perfect square nor a perfect cube.   True

B. 16 is a perfect square.   True 4^{2}

C. 27 is a perfect cube.   True 3^{3}

OD. 1,331 is both a perfect square and a perfect cube.   False

E. 9 is a perfect cube.  False

6 0
3 years ago
The formula i = prt gives a simple interest \ earned on an account where the amount is p is deposited at an interest rate r for
jeyben [28]
In order to answer this we need the table, however to do this all you would do would be to multiply the p value in the table with the corresponding r value in the table and then multiply this by 5, then order them, smallest to greatest.
8 0
3 years ago
How do you use protractors, its been printed on the paper, this is gonna be a little confusing for me sorry if I give this app a
Luda [366]

Answer:

  see below

Step-by-step explanation:

A protractor is usually a transparent measuring device laid intended to be laid over an angle to be measured. The centerpoint of the protractor's scale is made to coincide with the angle's vertex, and the baseline of the protractor is aligned with one of the angle's rays. The appropriate scale is used to read the angle where the other ray crosses the scale. You usually have to visually determine if the angle is acute or obtuse, so you can choose the correct scale to read.

__

If you're drawing an angle, first draw one ray and locate the vertex on it. Then do the steps above as you would for measurement. Make a mark on your paper corresponding to the desired angle measure, and connect the vertex to that mark to create the other ray of the angle.

__

If you're working with a printed protractor, you may need to do your work on a piece of translucent paper or transparency material, so you can see the protractor scale through the page you're drawing on.

_____

<em>Comment on a printed protractor</em>

A protractor will only give accurate measurements if its geometry is perfect. Some printers will scale a figure differently in horizontal and vertical directions, so will make the protractor scale be elliptical instead of circular. That will give wrong readings.

7 0
4 years ago
Please awnser fast!!!! :A rectangular swimming pool has a base of 200 square feet. The pool has a depth of 5 feet. What is the v
djverab [1.8K]

subscribe to pewdiepie

Step-by-step explanation:

unsubsribe to tsiris

7 0
3 years ago
A 1.5-mm layer of paint is applied to one side of the following surface. Find the approximate volume of paint needed. Assume tha
Mariulka [41]

Answer:

V = 63π / 200  m^3

Step-by-step explanation:

Given:

- The function y = f(x) is revolved around the x-axis over the interval [1,6] to form a spherical surface:

                                 y = √(42*x - x^2)

- The surface is coated with paint with uniform layer thickness t = 1.5 mm

Find:

The volume of paint needed

Solution:

- Let f be a non-negative function with a continuous first derivative on the interval [1,6]. The Area of surface generated when y = f(x) is revolved around x-axis over the interval [1,6] is:

                           S = 2*\pi \int\limits^a_b { [f(x)*\sqrt{1 + f'(x)^2} }] \, dx

- The derivative of the function f'(x) is as follows:

                            f'(x) = \frac{21-x}{\sqrt{42x-x^2} }

- The square of derivative of f(x) is:

                            f'(x)^2 = \frac{(21-x)^2}{42x-x^2 }

- Now use the surface area formula:

                           S = 2*\pi \int\limits^6_1 { [\sqrt{42x-x^2} *\sqrt{1 + \frac{(21-x)^2}{42x-x^2 } }] \, dx\\\\S = 2*\pi \int\limits^6_1 { [\sqrt{42x-x^2+(21-x)^2} }] \, dx\\\\S = 2*\pi \int\limits^6_1 { [\sqrt{42x-x^2+441-42x+x^2} }] \, dx\\\\S = 2*\pi \int\limits^6_1 { [\sqrt{441} }] \, dx\\S = 2*\pi \int\limits^6_1 { 21} \, dx\\\\S = 42*\pi \int\limits^6_1 { dx} \,\\\\S = 42*\pi [ 6 - 1 ]\\\\S = 42*5*\pi \\\\S = 210\pi

- The Volume of the pain coating is:

                           V = S*t

                           V = 210*π*3/2000

                          V = 63π / 200 m^3

8 0
4 years ago
Read 2 more answers
Other questions:
  • The track team will need a large bus and a small bus to travel to the track meet. The large bus can carry 85 passengers and the
    8·1 answer
  • Help me please and thank you
    11·2 answers
  • Write the first six nonzero multiples 3
    5·1 answer
  • Please help, I have a lot more too :(
    13·1 answer
  • Find the y intercept of (-2,5) and (3,25)
    7·1 answer
  • (a) Find the p - value for the test statistic =1.34
    14·1 answer
  • SOMEONE !!! I’ll mark brainliest !!
    9·2 answers
  • The measure of angle MPO is 72 degrees, find the measure of angle PMN
    11·1 answer
  • Samuel takes 5 hours to make a table and a chair. He takes 9 hours to make 3 chairs
    15·2 answers
  • 1 is the additive identity of any real number True or False​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!