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3 years ago

Marek thinks of 2 prime numbers that are larger than 3. He multiplies the 2 numbers together.is his answer odd or even.

2 answers:

6 0

It must be odd. As you know, 2 is the only even prime number. Therefore, all prime numbers have the form (2x+1).
For example, two numbers are 2x+1 and 2x+5. We have:
(2x+1)(2x+5)= 4x^2 +12x+5
Since 4x^2+12x is even, 5 is odd, 4x^2+12x+5 must be odd.
Good luck!

Stolb23 [73]3 years ago

5 0

Im thinking it would be odd because when you multiply 2 odd numbers youre result is usually odd

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Troyanec [42]

Answer:

$\large\boxed{m\angle R\approx76^o}$

Step-by-step explanation:

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3 years ago

Given that $x \le -7,$ identify all the correct conclusions. (A) $3x \le -21.$ (B) $3x \ge -21.$ (C) $-3x \le 21.$ (D) $-3x \ge

exis [7]

Answer:

Options A and D are correct choices.

Step-by-step explanation:

We have been given an inequality $x\leq -7$ and we are asked to find the correct options from our given choices.

Let us solve inequalities in our given options one by one to see which of these matches with our given inequality.

(A) $3x\leq -21$

$x\leq \frac{-21}{3}$

$x\leq -7$

We can see that option A gives the same answer as our given inequality, therefore, option A is the correct choice.

(B) $3x\geq -21$

$x\geq \frac{-21}{3}$

$x\geq -7$

This inequality represented in option C gives solution that x should be greater than or equal to -7, which is opposite to our given inequality, therefore, option B is incorrect.

Dividing inequality by a negative number swaps inequality sign.

$x\geq \frac{21}{-3}$

$x\geq -7$

This inequality gives solution that x should be greater than or equal to -7, which is opposite to our given inequality, therefore, option C is incorrect.

(D) $-3x\geq 21$

Dividing inequality by a negative number swaps inequality sign.

$x\leq \frac{21}{-3}$

$x\leq -7$

We can see that option D gives the same answer as our given inequality, therefore, option D is the correct choice.

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3 years ago

PLEASE HELP y/7=x what is y?

AlekseyPX

Answer:

You can't find y in this way

Step-by-step explanation:

You should know the value of x

But you can say

Y=7x

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2 years ago

Is 2,107,954 even or odd

RSB [31]

Answer:

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Step-by-step explanation:

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2 years ago

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