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True [87]
2 years ago
8

Mark needs 40 feet of fencing to do two sides of his back yard. The fencing he wants is sold in sections of 5 1/2 foot lengths.

How many sections will Mark need to have enough to fence the two sides?
Mathematics
1 answer:
Anarel [89]2 years ago
8 0
6969 and 6969 also 7695 cindienbd gehid uyodg hddkjydg sv sousy syjot dfd doyu
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You worked these hours this week: 1 1/2, 2 3/4, 3 3/4, 4, 5 1/2<br> How many hours did you work?
Paladinen [302]
Answer is = 17 1/2
16 1/2
1 1/2 + 5 1/2 = 7
2 3/4 + 3 3/4 = 6 2/4 (6 1/2)
7 + 6 1/2 + 4 = 17 1/2
7 0
3 years ago
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Can someone please explain how the answer is D
Kitty [74]

Step-by-step explanation:

Because the length of ST is calculated using pythagorean theorem:

{c}^{2}  =  {a}^{2}  +  {b}^{2}

Where the square of the hypotenuse is equal to the sum of squares of the other two sides of a right triangle. In this case, the hypotenuse is ST and the other two sides are distances between S and T over the X and Y axis. Those are easily calculated:

x =  |sx - tx|  \\ y =  |sy - ty|

Where x is the distance between S and T over X axis and Y distance over Y axis, sx and tx are X coordinates of S and T, sy and ty are Y coordinates of S and T.

Using that formula, you get that y = 17 and x = 8.

Back to the pythagorean theorem, if we put those number in the formula of the pythagorean theorem, we get something like this:

{c}^{2}  =  {x}^{2}  +  {y}^{2} \\  {c}^{2}  =  {8}^{2}  +  {17}^{2} = 64 + 289  \\  {c}^{2}  = 353 \\ c =  \sqrt{353}

And finally, the correct answer is in fact 353.

3 0
2 years ago
Write an equation to express the value of h + k
Dahasolnce [82]
So since, they are the same distance from zero, they should be the oppposite of each other so in other words, k=-h and h=-k

so k+h=(subisute)k-k=-h+h=0 because they cancel

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3 years ago
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Write the given vector in terms of i and j.
8_murik_8 [283]
The first number is coefficient for i, and the second number is coeff. for j
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<0,-8> is the same as 0i-8j, or simply 8j
5 0
3 years ago
Show all relevant steps.
Usimov [2.4K]
The answer is A hope this helps!
7 0
3 years ago
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