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Ray Of Light [21]
2 years ago
10

Just the image below.

Mathematics
1 answer:
nlexa [21]2 years ago
5 0

Answer:

1) 2x^3-2x^2+4x+20

Step-by-step explanation:

line up the equations, having each variable aligned with the similar variable, and distribute the minus sign across the parenthesis

7x^3              + 4x + 13

-(5x^3 + 2x^2          - 7)

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

2x^3 - 2x^2 +4x +20

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6. Marcus sold 6 pizzas. Sue sold 4 pizzas.
mestny [16]

Answer:

6*$10= $60

4*$10=$40

60+40= $100

$100

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
I don't understand this :( pls help
svp [43]
Hello!

So, the slope is 2, which means "up 2 over 1" because of rise over run and 2 is 2/1.  

You have to find the graph that as a line passing through (-2, -3), so the answer is going to be Graph D. 

Hope this helps :))
5 0
3 years ago
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use the discriminant to determine how many and what kind of solutions the quadratic equation x²-x=-1/4 has
pantera1 [17]

\bf x^2-x=-\cfrac{1}{4}\implies \stackrel{\textit{multiplying by }\stackrel{LCD}{4}}{4x^2-4x=-1}\implies 4x^2-4x+1=0


\bf \qquad \qquad \qquad \textit{discriminant of a quadratic} \\\\\\ \stackrel{\stackrel{a}{\downarrow }}{4}x^2\stackrel{\stackrel{b}{\downarrow }}{-4}x\stackrel{\stackrel{c}{\downarrow }}{+1} ~~~~~~~~ \stackrel{discriminant}{b^2-4ac}= \begin{cases} \boxed{0}&\textit{one solution}\\ positive&\textit{two solutions}\\ negative&\textit{no solution} \end{cases} \\\\\\ (-4)^2-4(4)(1)\implies 16-16\implies \boxed{0}

4 0
3 years ago
Is it Equivalent 5/10 95/100
Umnica [9.8K]

Answer:

No

Step-by-step explanation:

10 times 10 equal 100

5 times 10 only equal 50.

Not equal.

Hope this helps.

4 0
3 years ago
21. 12(x + 3) = 4(2x + 9) + 4x
Ann [662]

Answer:

Step-by-step explanation:

12x+36 =8x+36+4x

12x+36= 12x+36

which means any value of x will work.

6 0
3 years ago
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