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Evgen [1.6K]
3 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]3 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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What is the following product?<br> 4V7•4V7•4V7•4V7<br> A 4(4V7)<br> B 4v7<br> C 7^4<br> D 7
SVETLANKA909090 [29]

Answer:

Option (4)

Step-by-step explanation:

Let x = \sqrt[4]{7}

\sqrt[4]{7}\times \sqrt[4]{7}\times \sqrt[4]{7}\times \sqrt[4]{7} = (x)(x)(x)(x)

                                 = x^{1+1+1+1}

                                 = x⁴

Now we substitute the value x = \sqrt[4]{7}

x⁴ = (\sqrt[4]{7})^4

x⁴ = 7

Therefore, Option (4) will be the answer.

3 0
3 years ago
Find f(-10) f(x)=7x-5​
Inessa [10]

Answer:

<h2>f(-10) = -75</h2>

Step-by-step explanation:

F(x) is simply another way of saying y. We are given the x value of -10. We can substitute this in for x and find y.

f(-10) = 7(-10) - 5

f(-10) = -70 - 5

f(-10) = -75

6 0
3 years ago
Read 2 more answers
How to graph 3/8 of a fraction on a number line
IRINA_888 [86]

Answer:

So you make a number line right, and make from 0 to 1. You would put 8 dashes between 0 and 1. Once you finished that, you would go to the third dash, and that will be 3/8 on a number line.

Step-by-step explanation:

I hope this helps! :)

6 0
3 years ago
Martha is training for a duathlon, which includes biking and running. She knows that yesterday she covered a total distance of o
umka21 [38]

<u>Answer:</u>

<u>Distance:</u> 6x + 15.5y > 55.5

<u>Time:</u> x + y > 4.5

<u>Step-by-step explanation:</u>

We are given that Martha is training for a duathlon and she covered a total distance of over 55.5 miles in more than than 4.5 hours of training.

Also, she runs at a speed of 6 mph and bikes at a rate of 15.5 mph.

We are to write inequalities representing the distance she traveled and the total time she spent training.

<u>Distance:</u> 6x + 15.5y > 55.5

(formula for distance = speed x time so speeds for running and biking are multiplied by their number of hours)

<u>Time:</u> x + y > 4.5

(she trained for more than 4.5 hours, x hours for running and y hours for biking.

4 0
3 years ago
4x+1=2x-5 what is the answer
LekaFEV [45]

Answer:

-3

Step-by-step explanation:

4x+1=2x-5

   -1       -1

4x= 2x-6

-2x       -2x

2x=-6

/2    /2

x=-3

6 0
3 years ago
Read 2 more answers
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