4 years ago

How to solve the quadratic function: y=3x squared -12x+1

1 answer:

4 0

3x^2-12x+1=0
Use formula to solve quadratic eqns
Standard form of quadratic eq is ax^2+bx+c
-b(+,-)sqrtb^2-4ac/2a
Now can u find x?

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Log base 2 power (5x+7) =5

Vsevolod [243]

If we go back to the defenition of logs, we can find this solution quickly.

What you're saying when you say ㏒₂(5x+7) = 5 is that

2⁵ = 5x+7

32 = 5x+7

25 = 5x

x = 5

4 0

4 years ago

Simplify:9-1÷2÷27^2÷3

sammy [17]

First let's calculate the exponents.

$27^2 : 729 = 9-1\div \:2\div \:729\div \:3$

Now we should multiply and divide.

$1\div2\div729\div3:\frac{1}{4374} = 9-\frac{1}{4374}$

Now we should add and subtract.

$9-\frac{1}{4374} :\frac{39365}{4374} = \frac{39365}{4374}$

Convert the improper fractions into mixed numbers.

$8\frac{4373}{4374}$

Answer :

$8\frac{4373}{4374}$

5 0

3 years ago

Help please thank you:) QUICKLY!!!!!!!!!

STALIN [3.7K]

Answer:

y = -8

Step-by-step explanation:

2x2 - 12

4 - 12 = -8

hope this helps

4 0

3 years ago

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4 years ago

Complete the solution of the equation. Find the value of y when x equals -2. X + 2y = -12

telo118 [61]

x = -2

-2 + 2y = -12

add 2 to both sides: 2y = -10

divide by 2 on both sides: y = -5

when x = -2, y = -5

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3 years ago