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Evgen [1.6K]
4 years ago
6

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 nail polish at the end of the week and determines that Brand B lasts longer because there are fewer chips than Brand A. Why is her conclusion not valid?
Mathematics
1 answer:
frosja888 [35]4 years ago
4 0

Answer:

RYLAN MY MAAAN

Step-by-step explanation:

WASSOP WITH YOUR NAILS. her conclusion is not valid because it would last less

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A freight train leaves a station and travels north at 60 mph. 4 hours ​later, a passenger train leaves on a parallel track and t
harkovskaia [24]

Answer:

first do:

60mph * 4 hours= 240mi

Let D = the distance the passenger train has to  

travel to catch the freight train

Start a stopwatch when the passenger train leaves

Let t = the time on the stopwatch when they meet

Equation for freight train:

d-240=60t

Equation for passenger train:

d=100t

all together:

100t-240=60t

we can do 100t-60t because they both have (t)= 40t

40t=240 *now divide 240 by 40= 6

THEN do:

D= 100mph x 6= 600mi

They will meet 600 mi from the station

to check:

d-240=60t x 6

600-240= 360

60 x 6= 360

360=360

5 0
3 years ago
Please help me figure this one out !!!
strojnjashka [21]
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g(x+a)  means insert (x+a) into g(x) to replace every x:
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5 0
4 years ago
Use the FOIL method to find the product. (x - 8)(x + 3)
Sliva [168]
Greetings and Happy Holidays!

FOIL stands for: First Outside Inside Last

FOIL is the order in which you would multiply (distributive property) the different terms: 
(x - 8)(x + 3)

Multiply the First terms(x)(x):
=x^2

Multiply the Outside terms (x)(3):
=x^2+3x

Multiply the Inside terms(-8)(x):
=x^2+3x-8x

Multiply the Last terms(-8)(3):
=x^2+3x-8x-24

Simplify the expression:
=x^2-5x-24

The Answer Is:
\boxed{=x^2-5x-24}

I hope this helped!
-Benjamin


8 0
3 years ago
If josh has 8 apples and gives 5 to his brother and his mother gives him 3 more apples how much apples does he have
tekilochka [14]

he has 6 apples :) 8-5+3 is the way to do it

4 0
4 years ago
Read 2 more answers
What is the total area of the surfaces of both tables?
Anastasy [175]
There are two equal tables.
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7+3=10•1=10
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10•2=20

So, the tables area are 20 feet squared.
7 0
4 years ago
Read 2 more answers
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