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Digiron [165]
3 years ago
12

PLEASE HELP!! -1/3x + 1/6y = 2 3/4x + 1/2y = -8 x = ? y= ?

Mathematics
1 answer:
Alinara [238K]3 years ago
8 0
If you solve this problem using the substitution method then,
X = - 8
Y = - 4
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4. The area of a regular hexagon is 50 in. Find the length of a side. Round your answer to the nearest tenth.
Vikki [24]

Answer: 4.4

Step-by-step explanation:

The formula for calculating the area of regular hexagon is given as :

Area = \frac{3\sqrt{3}}{2}a^{2}

Where a is the length of a side.

Substituting the value given , we have :

50 =  \frac{3\sqrt{3}}{2}a^{2}

50 x 2 = 3\sqrt{3} a^{2}

100 = 3\sqrt{3} a^{2}

Divide through by 3\sqrt{3}

a^{2} = \frac{100}{3\sqrt{3}}

a^{2} = 19.24500897

Take the square root of both sides :

a = \sqrt{19.24500897}

a = 4.3869

To the nearest tenth

a = 4.4

4 0
3 years ago
Evaluate the expression (3-2i)(3-2i) and write the result in the form a+bi ,where a is the real part of your answer and bis the
Maslowich

Answer:

a = 5, b = -12

Step-by-step explanation:

By basic factoring, you get 9 - 12i + 4i^2. Since i^2 is simply -1, the expression evaluates to 9 - 12i - 4, which is 5 - 12i.

4 0
2 years ago
Can somebody help me out with this please?
Crank

Answer:

2 marbles

Step-by-step explanation:

Lana has 3 bags with x marbles in each bag totaling 12 marbles

3x=12

Divide by 3

3x/3 =12/3

x =4

Each bag has 4 marbles

Markus has 3 bags with y marbles totaling 18 marbles

3y =18

Divide each side by 3

3y/3 =18/3

y =6

Each bag has 6 marbles

6-4 =2

There are 2 more marbles in Markus' bags than in Lara's

4 0
3 years ago
I sailed west to Hawaii against the wind at the speed of 12 knots/hour. When I returned, I sailed the same route with the wind a
expeople1 [14]

Answer:

Step-by-step explanation:

total time is 5 hr and total distance is 72 nautical miles

7 0
3 years ago
You have 1 pizza, and cut off all the crust from it so that the crust forms a line. How long is this line in terms of pizza leng
Mrrafil [7]

Answer:

as long as a pizza crust

Step-by-step explanation:

yuh yuh yuh yuh yuh yuh

5 0
2 years ago
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