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schepotkina [342]
3 years ago
10

Simplify: √27x^2y^2 A) 27xy B) 3xy C) 3xy√3 D) xy√27

Mathematics
1 answer:
iren2701 [21]3 years ago
6 0

Answer:

\sqrt{27x^2y^2}=3xy\:\sqrt{3}

Hence, option C is correct.

Step-by-step explanation:

Given the expression

\sqrt{27x^2y^2}

simplifying the expression

\sqrt{27x^2y^2}=\sqrt{27}\sqrt{x^2}\sqrt{y^2}

Apply radical rule: \sqrt{a^2}=a,\:\quad \mathrm{\:assuming\:}a\ge 0

               =\sqrt{27}x\sqrt{y^2}

Apply radical rule: \sqrt{a^2}=a,\:\quad \mathrm{\:assuming\:}a\ge 0

                =\sqrt{27}xy

                =xy\sqrt{3^3}

                 =xy\sqrt{3^2\cdot \:\:3}

Apply radical rule: \sqrt{a^2}=a,\:\quad \mathrm{\:assuming\:}a\ge 0

                  =3xy\:\sqrt{3}

Therefore,

\sqrt{27x^2y^2}=3xy\:\sqrt{3}

Hence, option C is correct.

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What’s 12.3+0.61+100
hichkok12 [17]

Answer:

12.3 + 0.61 +100= 112.91

Step-by-step explanation:

All you have to do is make all the values have two place values and then add.

5 0
4 years ago
Find the mean absolute deviation for the set {-32, 9, 11, 12}
Zolol [24]
<h3>Answer:</h3>

A

Step-by-step explanation:

{-32, 9, 11, 12}

first, find the mean (Find the sum of the data values, and divide the sum by the number of data values )

(-32) + 9 + 11 + 12 = 0

0/0 = 0

then, find the absolute value of the difference between each data value and the mean: |data value – mean|.

-32 - 0= -32

9 -0 = 9

11 -0 = 11

12 -0 = 0

finally, find the sum of the absolute values of the differences. Divide the sum of the absolute values of the differences by the number of data values.

0 - 0 / 4 = 0

answer is 0 (A)

7 0
4 years ago
Two vertices of a right triangle have coordinates ( 9 , 1 ) and (;6 , - 1 ) Select each ordered pair that could be the coordinat
Serjik [45]

Option A: (9,-1) is the third vertex

Option B: (6,1) is the third vertex.

Explanation:

The two vertices of the right triangle are (9,1) and (6,-1)

The third vertex of the right triangle can be determined by plotting the points in the graph.

Option A: (9,-1)

By plotting the points (9,1), (6,-1) and the third vertex (9,-1) in the graph, the the hypotenuse of the triangle passes through the vertices (9,1) and (6,-1)

The legs of the triangle passes through the vertices (9,1), (9,-1) and (6,-1), (9,-1)

Hence, the third vertex (9,-1) forms a right triangle.

Therefore, Option A is the correct answer.

Option B: (6,1)

By plotting the points (9,1), (6,-1) and the third vertex (6,1) in the graph, the hypotenuse of the triangle passes through the vertices (9,1) and (6,-1)

The legs of the triangle passes through the vertices (9,1), (6,1) and (6,1) , (6,-1)

Hence, the third vertex (6,1) forms a right triangle.

Therefore, Option B is the correct answer.

Option C: (1,-1)

By plotting the points (9,1), (6,-1) and the third vertex (1,-1) in the graph, we can see that the three vertices does not make a right angled triangle.

Hence, the third vertex (1,-1) does not form a right triangle.

Therefore, Option C is not the correct answer.

Option D: (6,9)

By plotting the points (9,1), (6,-1) and the third vertex (6,9) in the graph, we can see that the three vertices does not make a right angled triangle.

Hence, the third vertex (6,9) does not form a right triangle.

Therefore, Option D is not the correct answer.

5 0
3 years ago
PLEASE HELP IM IN A BIG HURRY
Pepsi [2]
First, change the fraction (decimal and percent) into gallon
Martha used 17% of the total oil, that means
Martha = 17% × 8 gallons
Martha = 0.17 × 8 gallons
Martha = 1.36 gallons

Brett used 0.18 of the total oil
Brett = 0.18 × 8 gallons
Brett = 1.44 gallons

Mike used 0.7 gallons

Second, compare the number of gallon they used
1.36
1 acts as ones
3 acts as tenths
6 acts as hundreths

1.44
1 acts as ones
4 acts as tenths
4 acts as hundreths

0.7 or 0.70
0 acts as ones
7 acts as tenths
0 acts as hundreths

Compare the ones, 1.44 and 1.36 both have 1 as the ones, however 0.7 has 0 as ones. Because 1 is greater than 0, 1.44 and 1.36 are greater than 0.7.
Now compare the tenth, 1.44 has 4 as the tenths, and 1.36 has 3 as the tenths. Because 4 is greater than 3, 1.44 is greater than 1.36.
1.44 > 1.36 > 0.7
Brett > Martha > Mike
Brett used the greatest amount of oil
7 0
3 years ago
When an electronics company produces 1000 chips, it makes a profit of $10 per unit. When it produces 5000 chips, the company mak
adell [148]
I would be -198 your welcome :)

6 0
3 years ago
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