3 years ago

Select the qualification that is best demonstrated in each example.

Mathematics

1 answer:

Simora [160]3 years ago

8 0

Answer:

I think your answers are right.

Step-by-step explanation:

hope this helps, have a good day :)

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Factor 25x 2 + 10x + 1.

scoundrel [369]

25x^2+10x+1
(25x^2+5x)(+5x+1)
5x(5x+1) +1(5x+1)
(5x+1) (5x+1)
X=1/5

3 0

3 years ago

Read 2 more answers

Hi, can someone help with these two questions ASAP! (Ignore the multiple choice I circled, not sure if it’s correct)

Sindrei [870]

Answer:

1) D. $y = -\frac{3}{2}\cdot x^{12} -7\cdot x^{5}+\frac{2}{3}\cdot x -10$

2) E. The coefficient of $x$ is -16.

Step-by-step explanation:

1) A polynomial is an algebraic expression of the form $p(x) = \Sigma \limits_{i = 0}^{n} c_{i}\cdot x^{i}$ , where $n$ is the grade of the polynomial. In this case, the only equation that satisfies this definition is:

$y = -\frac{3}{2}\cdot x^{12} -7\cdot x^{5}+\frac{2}{3}\cdot x -10$

Correct answer: D

2) Let $p(x) = (2\cdot x + 1) \cdot (5\cdot x^{3}-8\cdot x +4)$ , we proceed to expand the expression by algebraic means:

$p(x) = (2\cdot x + 1)\cdot (5\cdot x^{3}) -(2\cdot x +1)\cdot (8\cdot x) + 4\cdot (2\cdot x + 1)$

$p(x) = 10\cdot x^{4}+5\cdot x^{3}-16\cdot x^{2}+4$

We see that coefficients for $x^{2}$ and $x$ are -16 and 0, respectively. Hence, the incorrect answer is E.

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3 years ago

Which expression is equivalent to |b| > 2?

frozen [14]

Answer:

1. b < -2 or b > 2

Step-by-step explanation:

|b| > 2

you get 2 solutions, one positive and one negative

remember to flip the inequality for the negative

b>2 or b<-2

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Tom rode his horse for 4/6 a mile. Liz rode her horse for an equal distance. What fraction is equilvalent to 4/6?

frosja888 [35]

the fraction that is equivalent to 4/6 is 2/3

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3 years ago

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