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stiks02 [169]
3 years ago
11

Sophie is adding a new room to her house she knows the total area will be 70 square feet and she knows the length will be 10 fee

t how wide will Sophie new room be
Mathematics
1 answer:
11111nata11111 [884]3 years ago
6 0
70/10=7
If total is 70
L=10
W=X
70\10=7
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What is the answer of this question?​
polet [3.4K]

Answer:

116

Step-by-step explanation:

8.2 / 2 = 4.1

a = \sqrt{7^{2}-4.1^{2} } = 5.6736

0.5 x 8.2 x 5.6736 = 23.2618

23.2618 x 5 = 116.309 = 116

7 0
3 years ago
What is a reasonable height for a 5-story building?<br> 16 mm<br> 16 km<br> 16 cm<br> 16 m
Bogdan [553]

Answer:

16 km !

Step-by-step explanation:

all the others are FAR too small.. they wouldnt even be one story up ! and 16m  isnt 5 stories either... km would be right !

i hope this helps !!

4 0
3 years ago
Rationalise the denominator.
grin007 [14]

Let's see what to do buddy...

_________________________________

To do this, we have to multiply the face and denominator of the fraction by the denominator conjunction, which is :

(5 -\sqrt{2})

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Reminder :

(a + b)(a - b) =  {a}^{2} -  {b}^{2}  \\

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So we have :

\frac{1}{ 5-\sqrt{2} } \times  \frac{ 5+\sqrt{2}  }{ 5 +\sqrt{2}  } =  \frac{1 \times ( 5 +\sqrt{2}) }{(5- \sqrt{2} )( 5 +\sqrt{2})  } =  \\

The other is in the photo.

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And we're done.

Thanks for watching buddy good luck.

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7 0
3 years ago
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kotykmax [81]

Answer: 129

Step-by-step explanation:

the mean is the average of the data. including x, there are 6 data points

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average = (98 + 123 + 105 +114 +109 + x) / 6

113 = (98 + 123 + 105 +114 +109 + x) / 6

113 = (549+ x) / 6

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x = 129

6 0
3 years ago
How do you do this question?
ohaa [14]

Step-by-step explanation:

The marginal totals are the sum of each row and column.

For example, the total number of sophomores is 120 + 302 = 422.

See picture of table with marginal totals filled in.

3 0
3 years ago
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