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Anit [1.1K]
2 years ago
14

I really need some help here.

Mathematics
1 answer:
Y_Kistochka [10]2 years ago
8 0

Answer:

a 1/7

Step-by-step explanation:

The given proprty is

a 1/n = n√a ...(i)

The given expression is

7√a  ...(ii)

on comparing (i) and (ii), we get

n = 7

Using (i) the given expression can be written as

7√a = a 1/7

Therefore, the required expression is

a 1/7

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Jenny is building a rectangular garden around a tree in her yard. the southwest corner of the garden will be 2 feet south and 3
irina [24]
3 feet west + 4 feet east means that the length of the rectangle is 7
2 feet south and 1 foot north means that the height (or width) 3.
Since the rectangle is 3 ft by 7ft the total distance around (perimeter) is 2 (l+w) or in this case 2 (7 +3) = 2 (10) = 20 ft  Answer b
Drawing a picture helps.
5 0
3 years ago
Read 2 more answers
Please help explanation if possible
Zielflug [23.3K]

Answer:

length = 48 feet , width = 32 feet

Step-by-step explanation:

Using

2W + 2L = 160 with W = L - 16 , then

2(L - 16) + 2L = 160 ← distribute and simplify left side

2L - 32 + 2L = 160

4L - 32 = 160 ( add 32 to both sides )

4L = 192 ( divide both sides by 4 )

L = 48

Substitute L = 48 into W = L - 16

W = 48 - 16 = 32

Thus length = 48 feet and width = 32 feet

3 0
3 years ago
Read 2 more answers
Can you please help me
FromTheMoon [43]

Answer:

9

Step-by-step explanation:

most accurate answer if tax was added it would be about 10 added to the fee when u do the math so the answer is 9

7 0
2 years ago
Read 2 more answers
What is the area of △ABC?
kirza4 [7]
Answer:
Area = 492.4 m²

Explanation:
The area of the triangle can be calculated using the side-angle-side method as follows:
Area = 0.5 * first side * second side * sin(angle included between these two sides)

This rule is illustrated in the attached image.

Now, we have:
AB = 40 m
BC = 25 m
angle B which is the angle included between AB and BC = 80 degrees

The given angle is included between the two given sides, therefore, we can apply the above rule to get the area.
Area of triangle = 0.5*40*25*sin(80)
Area of triangle = 492.4 m²

Hope this helps :)

3 0
3 years ago
2 + 3(x + 2x) = −2x(2 − 4) + 1<br><br> A) −5 <br> B) −<br> 1<br> 5<br> C) 5 <br> D) <br> 1<br> 5
11Alexandr11 [23.1K]

Answer:

B -1/5

you have to follow pemdas first get rid of the parethase which leaves you with 2+3x+6x=-4x+8x+1 then you add what you can do then you get 2+9x=4x+1 then you subtract 2 from both sides and subtract 4x from both sides which leaves you with 5x=-1 then you divide 5 from both sides and get x=-1/5

4 0
3 years ago
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