3 years ago

What is the value of the expression shown below?

Mathematics

1 answer:

melisa1 [442]3 years ago

3 0

6 4/9, hope this helps tell me if you need and explanation

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Can a pair of numbers have more than one common factor?

Y_Kistochka [10]

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3 years ago

Determine the number of real solutions of -2x^2+5x-3=0

Tema [17]

Answer:

Two distinct real solutions.

Step-by-step explanation:

Given the equation in the form $ax^2+bx+c=0$ , you need to find the Discriminant with this formula:

$D=b^2-4ac$

For the equation $-2x^2+5x-3=0$ you can identify that:

$a=-2\\b=5\\c=-3$

Then, substituting these values into the formula, you get that the Discriminant is:

$D=5^2-4(-2)(-3)$

$D=1$

Since $D>0$ , then $-2x^2+5x-3=0$ has two distinct real solutions.

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3 years ago

What are the solutions of the equation (x−13)2=400?

Slav-nsk [51]

Answer:

Step-by-step explanation:

$(x-13)^2=400\\\\ (x-13)^2=(\pm20)^2\\\\x-13=20\quad\vee\quad x-13=-20\\\\x=33\qquad\vee\qquad x=-7$

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3 years ago

Which term below is a "like term" to 2xy2?<br><br> a, 3xy2<br> b, -x2y<br> c, -5<br> d, 4xy

BigorU [14]

Answer:

The answer is

A 3xy^2

Step-by-step explanation:

Im assuming that in the question it is 2xy^2 and that answer choice A is 3xy^2

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Answer:

Step-by-step explanation: i think

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