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allsm [11]
3 years ago
5

If n represents the amount of songs stored on an MP3 player, analyze the meaning of the expressions n + 7, n - 2, 4n, and n divi

ded by 2
Mathematics
1 answer:
zmey [24]3 years ago
3 0
N + 7  means that he is adding 7 songs to the MP3 player
n-2 would mean he deleted two songs
4n means he has four times the amount of songs
and n/2 means he deleted 1/2 of them
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In a standard television set, the screen height is 0.75 times the screen width. If a television set measures 34 inches along the
S_A_V [24]
We can solve this by using the  P<span>ythagorean theorem which is below:

a^2 + b^2 = c^2

Or we can say
</span>w^2 + h^2 = d^2
<span>w = widht
h = height
d = diagonal measure


With that said, we know the height is .75 times the width so .75w. We also know d = 34, which is our diagonal measure.
w = don't know yet but need to find
h = .75w
d = 34
Now lets plugin the information we know into our equation

</span>w^2 + h^2 = d^2
w^2 + (.75w)^2 = 34^2
Now lets to the math
w^2 + (.75w)^2 = 34^2
w^2 + (.75w)^2 = 1156
w^2 + .5625w^2 = 1156
Combine like terms
w^2 + .5625w^2 = 1156
1.5625w^2 = 1156
Divide both sides of the equal sign by 1.5625
\frac{1.5625w^2}{1.5625} = \frac{1156}{1.5625}
w^2 = 739.84
Now take the square root on both sides of the equal sign
\sqrt{w^2} = \sqrt{739.84}
w = 27.2

So the width is 27.2
We can check this by putting 27.2 back into our original equation
w^2 + (.75w)^2 = 34^2
27.2^2 + (.75\times 27.2)^2 = 34^2



3 0
3 years ago
DeanR where.are youuu i need ur helppppppp
Tatiana [17]

Do the formula length times width times height.

Then, round like you normally would!

And for the second one, just multiply 2.5 x 6!

8 0
3 years ago
Read 2 more answers
Y-intercept oftheparabola y = x2 – 2x – 3
inessss [21]
(X-3)(X+1)=0
X-3=0
X=3
X+1=0
X=-1
6 0
3 years ago
What decimal is smaller .52 or .25
Liono4ka [1.6K]

Answer:

0.25

Step-by-step explanation:

0.52 is like 2 quarters

0.25 is 1 quarter

So, 1 < 2

Have a nice day! :)

3 0
3 years ago
Find the sum or difference. Round your answer appropriately. 6.8 L + 5 L
marshall27 [118]
The answer could be 11.8L 
If rounded 12L
8 0
3 years ago
Read 2 more answers
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