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Neporo4naja [7]
4 years ago
13

Keira used yards of fabric to make a quilt. After making the quilt, she had yards of the fabric left.

Mathematics
1 answer:
a_sh-v [17]4 years ago
3 0

Answer: B 11

Step-by-step explanation:

x- 23/3= 10/3

23/3+10/3= 33/3

33/3= 11

Hope this helps!!

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NO LINKS!!!
matrenka [14]

Factor x^5 - x to get x(x^4 - 1) = x(x^2-1)(x^2+1) = x(x-1)(x+1)(x^2+1)

We see that x = 0, x = 1 and  x = -1 are the real number roots or x intercepts. Ignore the complex or imaginary roots. Unfortunately, the graph shows the x intercepts as -2, 0 and 2 which don't match up.

So there's no way that the given graph matches with f(x) = x^5-x.

-------------------

As more proof, let's consider the end behavior.

As x gets really large toward positive infinity, x^5 will do the same and so will x^5-x. Overall, f(x) will head off to positive infinity. Visually, moving to the right will have the graph move upward forever. This is the complete opposite of what is shown on the graph.

Likewise, the left endpoint should be aimed down instead of up. This is because x^5-x will approach negative infinity as x heads to the left.

In short, the graph shows a "rises to the left, falls to the right" end behavior. It should show a "falls to the left, rises to the right" pattern if we wanted to have a chance at matching it with x^5-x. Keep in mind that matching end behavior isn't enough to get a 100% match; however, having this contradictory end behavior is proof we can rule out a match.

I recommend using Desmos, GeoGebra, or whatever graphing program you prefer to plot out y = x^5-x. You'll get a bettter idea of what's happening.

8 0
2 years ago
Read 2 more answers
He formula for a trapezoid relates the area A, the two bases, a and b, and the height, h.
aleksandrvk [35]
If you want to isolate h, move all terms to the other side, leaving h behind. 

A=1/2h(a+b) 
2A=1h(a+b) 
2A/a+b=h 

Hope I helped :)
8 0
3 years ago
Find the values of b such that the function has the given maximum value.
gizmo_the_mogwai [7]
So, the equation has a leading term with a negative coefficient, and is a quadratic, meaning is a parabola opening downwards, so it goes up and up and up and then makes a U-turn then down down, so it has a maximum point, that is, at the vertex point

so.. where the dickens is the vertex at?
we're asked to make the vertex with a y-coordinate of 104, so the maximum value is 104

well
\bf y = {{ a}}x^2{{ +b}}x{{ +c}}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)\\\\
-----------------------------\\\\
\textit{so we want }\implies {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}=104
\\\\
\textit{let's take a peek at your equation}\quad 
\begin{array}{ccccllll}
f(x)=&-x^2&+bx&-17\\
f(x)=&-1x^2&+bx&-17\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}
\\\\
thus
\\\\
(-17)=\cfrac{b^2}{4(-1)}=104

solve for "b"
5 0
3 years ago
Helpppppppppppp 25pts!
Margarita [4]

Answer:

19

Step-by-step explanation:

50/2=25-(12/2)=19

5 0
3 years ago
Read 2 more answers
What is <br> y=3x+5 in standard form
alex41 [277]

Answer:

3x-y=-5

Step-by-step explanation:

8 0
3 years ago
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