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Mashcka [7]
3 years ago
8

Can anyone help me with this problem?3a=9a^2-30​

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
7 0

Answer:

X1 = 2 X= -\frac{5}{3}

Step-by-step explanation:

You must pass the 3 a to the other side in negative and use the quadratic formula

Roman55 [17]3 years ago
4 0

Answer:

Step-by-step explanation:

X1 = 2 X= -\frac{5}{3}

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X² + 4x – 32<br>x2 + x - 20​
anygoal [31]

Answer:

1.  (x+8)(x-4)

2.  3x-20

Step-by-step explanation:

1.  x² + 4x – 32

x² + 8x - 4x - 32

x (x+8) - 4 (x+8)

one of the x+8's is cancelled out then you have (x+8)(x-4)

2.  x2 + x - 20​

2x+x-20

3x-20

8 0
4 years ago
A girl age is 28 years younger than her father the sum of their ages is 50 years find the ages of the girl and the father
faltersainse [42]
Girl age is 11 years old
Fathers age is 39 years old


How to solve it:

Let the girls age be x years
Let the fathers age be (x+28) years

X+X+28=50

2x=50-28
2x=22
X=11


(11+28)= 39
3 0
4 years ago
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kotykmax [81]
The answer is B 80.0 cm^2
8 0
3 years ago
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Solve the equation. Write the answer in terms of the natural logarithm.<br><br> 5e^{0.2x}=6[/tex]
Snezhnost [94]

Answer:

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Step-by-step explanation:

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  • ln (e^{0.2x})= ln 1.2
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8 0
3 years ago
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