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3 years ago

Which of the following is a numerical expression A. x+y B. 2b -5 C. 6 x 4 D. 425

Mathematics

2 answers:

densk [106]3 years ago

4 0

2b -5 is a numerical expression

xxTIMURxx [149]3 years ago

3 0

A numerical expression is one that has no variables, just numbers. You can see that choices A and B both have variables, so they can't be the answer. 425 isn't an expression, it's just a number, so the answer is C. 6 x 4 .

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3 years ago

The sum of 7/8 and 4/9 is closer to 0,1,2,or 3?

tresset_1 [31]

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3 years ago

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3 years ago

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viktelen [127]

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2 years ago

Solve the quadratic equation 6x^2-13x-28=0 by factoring.

mixer [17]

First step to factor the trinomial, multiply the constant -28 with the leading coefficient 6.

So, -28 * 6 = - 168.

Next step is to breakdown -168 into two multiples so that their addition will result the coefficient of w= - 13.

So, -168 = -21 * 8.

And addition of - 21 and 8 will give - 13.

So, next step is to replace -13x with -21x + 8. Therefore,

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2x = 7 , 3x = -4

So, $x= \frac{7}{2} , -\frac{4}{3}$

Hope this helps you !

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3 years ago