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
777dan777 [17]
3 years ago
5

rylan is testing 2 different types of nail polish on her fingernails to determine which one lasts longer. she purchases Brand A

and Brand B from the drug store. She then paints her nails with Brand A and her sister's nails with Brand B. She compares the nails polish at the end of the week and determines that Brand B last longer because there fewer chips than Brand A. Why is her conclusion not valid?
Mathematics
2 answers:
ololo11 [35]3 years ago
4 0

Answer:

b

Step-by-step explanation:

She painted her sister's nails with Brand B, not her own nails.

jok3333 [9.3K]3 years ago
3 0
Because she and her sister may have done different activities which would have possibly damaged the nail polish differently
You might be interested in
Help help help help
goblinko [34]

Answer:

\displaystyle m=\frac{-1}{2}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Reading a Cartesian plane
  • Coordinates (x, y)
  • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (4, 1)

Point (0, 3)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute in points [Slope Formula]:                                                            \displaystyle m=\frac{3-1}{0-4}
  2. [Fraction] Subtract:                                                                                         \displaystyle m=\frac{2}{-4}
  3. [Fraction] Simplify:                                                                                          \displaystyle m=\frac{-1}{2}
4 0
3 years ago
For g(x)=x^2-2, determine g(x+2)
Svetlanka [38]

Answer:g(x)=-4^2+4x-5

Step-by-step explanation:

6 0
2 years ago
A person bikes 2
Lerok [7]

Answer:

The person bikes 20 miles in an hour

Step-by-step explanation:

5 0
2 years ago
The speaker is the ____________ of the message.
8090 [49]
The speaker is the encoder. That is the correct answer B.
7 0
3 years ago
Solve inequalities.
grigory [225]

Answer:

10. 7n - 1 < -8

Isolate the variable, n. Do the opposite of PEMDAS. Treat the < as equal sign, what you do to one side, you do to the other. First, add 1 to both sides:

7n - 1 (+1) < - 8 (+1)

7n < - 8 + 1

7n < - 7

Isolate the variable, n. Divide 7 from both sides:

(7n)/7 < (-7)/7

n < -7/7

n < -1

n < -1 is your answer.

11. 3 > -7v + 4v

Combine like terms, then isolate the variable, v. First, add -7v and 4v together.

3 > (-7v + 4v)

3 > (4v - 7v)

3 > (-3v)

Isolate the variable, v. Divide -3 from both sides. Note that since you are dividing a negative number, you must flip the sign:

(3)/-3 > (-3v)/-3

3/-3 > v

-1 < v

v > -1 is your answer.

~

4 0
2 years ago
Other questions:
  • Sasha solved an equation, as shown below:
    14·1 answer
  • Graph -2,5 then rotate 180 degrees
    14·1 answer
  • Construct the 99% confidence interval estimate of the population proportion p if the sample size is n=900 and the number of succ
    5·1 answer
  • Which represents the inverse of the function f(x) = 4x?
    13·1 answer
  • What is the solution of the equation 8(3x + 4) = 2(12x − 8)?
    10·1 answer
  • 15 points!!!! There is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form
    12·1 answer
  • Please help, whoever gives the best explanation will be marked Brainliest
    13·1 answer
  • Which statement is false?
    7·1 answer
  • Which equation is correct regarding the measure of
    11·1 answer
  • Whats the volume of the cone?<br> use the fórmula V=1/3πr^2h.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!