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mixer [17]
3 years ago
11

How to simplify 81 1/2

Mathematics
2 answers:
VladimirAG [237]3 years ago
8 0
81=81•2/2=162/2
81 1/2=162/2+1/2
=163/2
So 81 1/2=163/2=81.5
tigry1 [53]3 years ago
6 0

Answer: 9

Step-by-step explanation: To simplify 81^{1/2}, it's important to understand that an exponent of 1/2 means that we take the square root of the base. In other words, 81^{1/2} means the same thing as the square root of 81 and the square root of 81 is 9.

So 81^{1/2} is 9.

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divide. mr. george owns 425 acres of land. if he divides the land into half-acre plots, how many plots will he have? 212 �� 850
EastWind [94]

Answer:

The number of half acres plots are 850 .

Step-by-step explanation:

As given

Mr. george owns 425 acres of land.

if he divides the land into half-acre plots .

Let us assume that the   numbers of half - acres plots are x .

Than the equations are

\frac{1\times x}{2} = 425

solving the above

x = 2 × 425

x = 850

Therefore the number of half acres plots are 850 .

7 0
3 years ago
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20 Points and will give brainliest to the first correct answer!
olga2289 [7]

Answer:

−1 −12 −12 1 1 12

Step-by-step explanation:

3 0
2 years ago
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Help pls and ty! What is the area of this trapezoid?
Gnesinka [82]

Answer:

88 units^2

Step-by-step explanation:

The area of a trapezoid is equal to \frac{a+b}{2}h, where a and b are the top and bottom of the trapezoid and h is height.

We can see that a (top) equals 17, and b (bottom) equals 5 + 17 + 5 = 27. Then, the height of the trapezoid is 4.

  • \frac{17+27}{2} * 4
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  • 22 * 4
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Therefore, the answer is 88 units^2.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

6 0
2 years ago
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At a restaurant, brunch cost $18.50. As the cost of ingredients rises, the cost of brunch also rises by 40%. What is the new pri
statuscvo [17]
$25.90 because if you move the decimal over one place in 18.50 you get 1.85 that is 10% so you take that times four and get $7.50 add that to 18.50 and you get the answer
6 0
3 years ago
Evaluate the expression when x=2 . -3x+1.5+2.5x-4.5+8x
dlinn [17]

Answer: 12

Step-by-step explanation:

For this problem, all you have to do is plug in x=2 into all the x you see.

-3(2)+1.5+2.5(2)-4.5+8(2)

-6+1.5+5-4.5+16=12

3 0
3 years ago
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