What is 3/10 of 68249????????????

Mathematics

1 answer:

Over [174]3 years ago

4 0

Answer:20474.7

Step-by-step explanation:

68249 divide by 10 then multiply by 3

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What's the solution to the inequality????? 20 points

katrin2010 [14]

Answer:

the answer is A

Step-by-step explanation:

The answer is A

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2 years ago

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What is the discriminant of f(x)=2x^2+8x+16 and the number and type of roots

vfiekz [6]

Answer:

2 imaginary roots

Step-by-step explanation:

The discriminate is the portion of the quadratic equation under the square root

D = b^2 - 4ac

D = 8^2 - 4(2)(16)

D = 64 - 128

D = -64

Since the discriminate is negative the square root will be imaginary

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In order to solve the following system of equations by addition, which of the

Pavlova-9 [17]

Answer:

Multiply the top equation by -3 and the bottom equation by 2

Step-by-step explanation:

Given system of equations:

$\begin{cases}4x-2y=7\\3x-3y=15 \end{cases}$

To solve the given system of equations by addition, make one of the variables in both equations sum to zero. To do this, the chosen variable must have the same coefficient, but it should be negative in one equation and positive in the other, so that when the two equations are added together, the variable is eliminated.

To eliminate the variable y:

Multiply the top equation by -3 to make the coefficient of the y variable 6:

$\implies -3(4x-2y=7) \implies -12x+6y=-21$