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Solnce55 [7]
3 years ago
10

Add the following lengths: 12' 11" + 11' 3”

Mathematics
1 answer:
Vesna [10]3 years ago
7 0

Answer:

24'2

Step-by-step explanation:

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Find the area of the figure.
Arisa [49]

Answer:

can u clarify bc area is 2 but 4 things is perimiter

Step-by-step explanation:

4 0
2 years ago
Find the principle fourth root of -81, checking your answer by raising to the 4th power. If there are "no real roots," then type
kondaur [170]

Answer:

None

Step-by-step explanation:

There are actually 2 answers, 3 and -3. Although if you put it in a calculator, it would show "math error" or undefined. That's because the index is even (4) and the radicand is negative (-81)

4 0
3 years ago
How much work is done by a man who uses a force of 7 Newtons to push a box 3 meters across the room?
ElenaW [278]

The formula to calculate work done is -

Work done ( in joule, J) = Force (in Newton) X Distance (in meters)

So, we will use the formula to calculate work done,

Here, force is given as = 7 newtons

Distance is given as = 3 meters

So, work done will be -

Work done ( in joule, J) = 7 Newtons X 3 Meters

<u>Work done ( in joule, J) = 21 J (in joule)</u>


7 0
3 years ago
Read 2 more answers
Factor completely 36x2− 121.
lesantik [10]
The expression 36x² - 121 is in the 'difference of two squares form' which is (a² - b²)

Factorising (a² - b²) gives (a+b)(a-b)

Factorising 36x² - 121 gives (6x+11)(6x-11)
6 0
2 years ago
Can someone please help me I don't understans
Lemur [1.5K]
The question is asking which formula will give the results
1, 9, 36, 100, 225, ...
for k values of
1, 2, 3, 4, 5, ...

You can try them out to see.
A) for k=2, gives 2*3/2 = 3 . . . not 9
B) for k=1, gives 2^3/3 = 8/3 . . . not 1
C) for k=2, gives (2^2*3^2)/4 = 9 . . . . looks promising
D) for k=1, gives 1*2^3/5 = 8/5 . . . not 1

Selection C is the only viable choice. (And the correct one.)

6 0
3 years ago
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