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STALIN [3.7K]
3 years ago
7

X^2+xy=20 and y^2+xy=30 what is xy?

Mathematics
1 answer:
Pie3 years ago
3 0
Its got to be number1 
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Okay, help me out here!!
luda_lava [24]

Answer:

65.8

Step-by-step explanation:

(2.6*4.7)/2=6.11

11*4.7=51.7

(4.7(17-(2.6+11)))/2=7.99

6.11+51.7+7.99=65.8

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4 years ago
Lateral erea of cube​
jekas [21]

Answer:

4a2

Step-by-step explanation:

For a cube the lateral surface area would be the area of the four sides. If the edge of the cube has length a, the area of one square face Aface = a ⋅ a = a2. Thus the lateral surface of a cube will be the area of four faces: 4a2.

4 0
3 years ago
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Factor tree<br>67344 using prime numbers​
Aleksandr-060686 [28]

Answer:

2^4*3*23*61

Step-by-step explanation:

\begin{array}{c|c}67344&2\\33672&2\\16836&2\\8418&2\\4209&3\\1403&23\\61&61\\1&\\\end{array}

8 0
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Is 312mg greater than 312dg
adelina 88 [10]

312 mg is not greater than 312 dg

5 0
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CO 5<br> What is the value of tan(60°)?<br> A<br> O<br> 12<br> 30°<br> 3<br> B<br> 60°<br> 6
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<em>√3</em>

Step-by-step explanation:

5 0
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