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Lady_Fox [76]
3 years ago
13

Ok I need help is this correct? I tried but I gave up.

Mathematics
1 answer:
Bas_tet [7]3 years ago
4 0
X+y=12
8x+10y=102

8x+8y=96
8x+10y=102 _
-2y= -6
y=3

x+y=12
x=12- 3
x=9

or
8x+10y=102
8x+30=102
8x=102-30
8x=72
x=9
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I think it would be $10.53

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4 0
4 years ago
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What is the simplest form of the expression? sqr root 6x^8y^9/ sqr root 5x^2y^4
expeople1 [14]
For slightly greater clarity, write this expression as

sqrt(6x^8y^9)                                                   6x^8y^9
--------------------    This is equivalent to sqrt[ -------------------- ]
  sqrt(5x^2y^4)                                                  5x^2y^4

Reduce the quantity inside the square brackets, obtaining:

                                                        6*x^6*y^5
                                             sqrt[  ---------------- ]
                                                                 5     

This simplifies as follows:     sqrt[ 6/5 ] * [ x^3 * y^(5/2)

which can be simplified even further if you wish.
4 0
3 years ago
The expression (3x^7)^4 is equivalent to c^n what is the value of c
Nimfa-mama [501]

Answer:

n= 21

c= 3x

Step-by-step explanation:

The expression is given as;

(3x⁷)⁴

Apply the brackets law of indices which states that :

If a term with a power is itself raised to a power then the powers are multiplied together

(xᵃ)ᵇ = xᵃˣᵇ

Applying the same;

(3x⁷)⁴ = 3x²¹

If 3x²¹ = c^n

Then n = 21

and

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7 0
3 years ago
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Leto [7]

Answer:

x=43°

Step-by-step explanation:

The angles are adjacent and create a straight line so their sum is 180°.

(x+6)°+(3x+2)°=180°

x°+6°+3x°+2°=180°

4x°+8°=180°

4x°=172°

x=43°

5 0
3 years ago
Read 2 more answers
Pls can any one help me with question two pls
kotegsom [21]

Answer:

b is the correct answer

4 0
3 years ago
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