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2 years ago

9

Which of the following best descifrar the graph shown below?

1 answer:

Ivahew [28]2 years ago

5 0

Answer: It's B

Step-by-step explanation:

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What are the coordinates of the midpoint of the segment whose endpoints are A (1,6) and B (5,-2)?

Alexandra [31]

$\bf ~~~~~~~~~~~~\textit{middle point of 2 points }
\\\\
A(\stackrel{x_1}{1}~,~\stackrel{y_1}{6})\qquad 
B(\stackrel{x_2}{5}~,~\stackrel{y_2}{-2})
\qquad
% coordinates of midpoint 
\left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right)
\\\\\\
\left( \cfrac{5+1}{2}~~,~~\cfrac{-2+6}{2} \right)\implies (3~,~2)$

6 0

3 years ago

Can someone please help me with 10-14. Its algebra hw and I dont understand anything!!!!

gtnhenbr [62]

10. l/m-c+1
11. -(l/m)+c+1
12. (RK+T)/B
13. (c^2hm)/R
14. (ya-r)/(p^2*L)

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3 years ago

Consider the function f(x) = x^3 - 7x^2 - 2x + 14

mars1129 [50]

Answer:

There are 3 zeros, which are:

$x=7,\:x=-\sqrt{2},\:x=\sqrt{2}$

Step-by-step explanation:

Given the function

$f\left(x\right)\:=\:x^3\:-\:7x^2\:-\:2x\:+\:14$

To get the zeros of $f(x)$ , set $y$ or $f(x) =0$

so

$0=x^3-7x^2-2x+14$

as

$x^3\:-\:7x^2\:-\:2x\:+\:14=\left(x-7\right)\left(x+\sqrt{2}\right)\left(x-\sqrt{2}\right)$

so

$\left(x-7\right)\left(x+\sqrt{2}\right)\left(x-\sqrt{2}\right)=0$

Using the zero factor principle:

$\mathrm{ \:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$

so

$x-7=0\quad \mathrm{or}\quad \:x+\sqrt{2}=0\quad \mathrm{or}\quad \:x-\sqrt{2}=0$

solving

$x-7=0$

$x=7$

$x+\sqrt{2}=0$

$x=-\sqrt{2}$

$x-\sqrt{2}=0$

$x=\sqrt{2}$

Therefore, there are 3 zeros, which are:

$x=7,\:x=-\sqrt{2},\:x=\sqrt{2}$

8 0

2 years ago

Miss stephens is buying pencils for all of her students,she already has 7 pencils,and needs a total of 59. If they come in packs

svp [43]

Answer:

4

Step-by-step explanation:

13 x 4 = 52 + 7 = 59

4 0

2 years ago

How many ways can three items be selected from a group of six items? use the letters a, b, c, d, e, and f to identify the items,

vovangra [49]

abc,bca,cba,cab,bac ? then just rotate the others like I did

7 0

3 years ago