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Kisachek [45]
3 years ago
7

Find the perimeter and the area of the LED screen of the camera. (Simplify your answer completely.) perimeter units area square

units 4/x+6 long 3/x-1 wide
Mathematics
1 answer:
aalyn [17]3 years ago
3 0

Answer:

Step-by-step explanation:

The LED screen of the camera is rectangular in shape.

Given the length of the screen = 4/x+6

Width of the screen = 3/x-1

Area of the LED screen = Length * Width = 4/x+6 * 3/x-1

On simplification, Area = 12/(X+6)(X-1)

= 12/x²-x+6x-6

= 12/x²+5x-6 units²

Perimeter of the LED screen = 2(L+W)

= 2(4/x+6 + 3/x-1)

= 2(4(x-1)+3(x+6)/x+6(x-1))

= 2(4x-4+3x+18/x²+5x-6)

= 2(7x+14/x²+5x-6)

= 14(x+2)/x²+5x-6 units

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Answer:

8 x 2.48 = 19.84

Step-by-step explanation:

We need to find the product for the expression 8 x 2.48.

First no is 8 and second no is 2.48

Product means to multiply.

We can write 2.48 as \dfrac{248}{100}

i.e.

8\times \dfrac{248}{100}\\\\=\dfrac{1984}{100}

Now, apply decimal after 9. So,

8 x 2.48 = 19.84

Hence, the correct option is (b).

7 0
3 years ago
Ryan flew from Wiley Post to Ponca City and back. Ryan maintained an average rate of 450 mph going to Ponca City and an average
Reil [10]
The answer is B, and here's why.  Set up a table for "there" and "back" and use the distance = rate * time formula, like this:
               d             r            t
there       d           450         t
back        d           400        1-t

Let me explain this table to you.  The distance is d, we don't know what it is, that's what we are actually looking for.  We only know that if we go somewhere from point A to point B, then back again to point A, the distance there is the same as the distance back.  Hence, the d in both spaces.  There he flew 450 mph, back he flew 400 mph.  If the total distance was 1 hour, he flew an unknown time there and one hour minus that unknown time back.  For example, if he flew for 20 minutes there, one hour minus 20 minutes means that he flew 60 minutes - 20 minutes = 40 minutes back.  See? Now, because the distance there = the distance back, we can set the rt in both equal to each other.  If d = rt there and d = rt back and the d's are the same, then we can set the rt's equal to each other.  450t = 400(1-t) and
450t = 400 - 400t and 850t = 400.  Solve for t to get t = .47058.  Now, t is time, not the distance and we are looking for distance. So multiply that t value by the rate (cuz d = r*t) to get that the distance one way is
d = 450(.470580 and d = 211. 76 or, rounded like you need, 212.
4 0
3 years ago
Write an expression showing the sum of 8 and a number .
77julia77 [94]

Answer:

8+ n

Step-by-step explanation:

my answer got delete so dont think i coped the person who did was user content bot

5 0
3 years ago
5x - 2z = 8 -2y + 9z = 50 6x + 9y + 9z = 96
sergiy2304 [10]

Answer:

there r algebra calulators you could use

Step-by-step explanation:

5 0
3 years ago
What is the least common multiple of 8 and 12?<br> 96<br> 24<br> 48
Aleonysh [2.5K]

Answer:

B. 24 :)

Step-by-step explanation:

I hope this helps!

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