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3 years ago

Please help me!!!!!!!

Mathematics

1 answer:

Arte-miy333 [17]3 years ago

5 0

5,00000 so that is the answer

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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.

3 0

3 years ago

Hello help me with this question thanks in advance

AfilCa [17]

<h2>Question #22 Answer</h2>

B. 2 in.

<h3>Explanation:</h3>

$\frac{3\times4}{6}$

Cross out the common factor

$\frac{4}{2}\\ 2$

________________________________________________________

<h2>Question #23 Answer (Picture attached)</h2>

D. proportional, equal

<h3>Explanation:</h3>

$Two\ figure\ are\ sand\ to\ \\ be\ similar\ if\ the\\ Conesesponding\ sides\ we\\ proportional\ and\ the\\ Corresponding\ ongles\ are\\ equal.$

$If\ triangle\$ Δ $ABC\ is\ similar\ to$
Δ × $yz.\ Thes$
$\frac{AB}{xy}=\frac{AC}{xz}=\frac{BC}{yz}$

$and$

$< A= < X,\ < B= < y\ and\ < C= < z$

5 0

3 years ago

May someone please help me?

vova2212 [387]

Answer:

532m^2

Step-by-step explanation:

Please see the attached pictures for full solution.

5 0

3 years ago

if the line AB with A(-1,5) and B(3,7) is perpendicular to the line CD WITH C(7,11) AND D(X,23). THEN X=?

MissTica

Answer:

x=1

Step-by-step explanation:

slope AB = (7-5) / (3 - -1) = 2 / 4 = 1/2

slope CD = (23-11) / (x-7) = 12 / (x-7)

12 / (x-7) = - 2 ... perpendicular to AB slope 1 = - 1/slope 2

-2 (x-7) = 12

-2x + 14 = 12

-2x = -2

x = 1

5 0

3 years ago

If you borrow $500 from a credit union at 12% annual interest and $250 from a bank at 18% annual interest, what is the effective

Gnesinka [82]

Answer:

B. 11.85% = 12%

Step-by-step explanation:

500 * .10 + 300 * .15 = 50 + 45 = 95.

95/800 = .11875

.11875 = 11.875%

8 0

4 years ago

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