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ELEN [110]
3 years ago
6

Simplify the exponent -(7)^3

Mathematics
1 answer:
miv72 [106K]3 years ago
5 0

Step-by-step explanation:

Esa sería la respuesta -7×-7×-7=-343

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Solve and graph the compound inequalities. (You don’t need to graph it on a line plot but if you could that would be great!)
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Part A

-12 < 5x - 2 < 13\\\\-12+2 < 5x - 2+2 < 13+2 \ \text{ ... add 2 to all sides}\\\\-10 < 5x  < 15\\\\-10/5 < 5x/5  < 15/5 \ \text{ ... divide all sides by 5 to isolate x}\\\\-2 < x  < 3\\\\

To graph this, we plot open holes at -2 and 3 on the number line. Shade between these open holes to represent values between -2 and 3, but we don't include the endpoints.

See figure 1 below.

===============================================

Part B

Solve the first inequality to get

3x < -9\\\\3x/3 < -9/3\\\\x < -3\\\\

Now solve the second inequality

2x \ge x+1\\\\2x-x \ge x+1-x\\\\x \ge 1\\\\

We have x < -3 \ \text{ or } \ x \ge 1

The graph will have an open hole at -3 and a closed/filled in circle at 1. We shade everywhere but the region between these marked values. The left portion in blue represents stuff smaller than -3; the right portion in red represents values equal to 1 or larger.

See figure 2 below.

4 0
2 years ago
−3(6x+ 7) + 4(7x + 2) equivalent expression
Lera25 [3.4K]

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10x - 13.

Step-by-step explanation:

−3(6x+ 7) + 4(7x + 2)

= -18x - 21 + 28x + 8

= 10x - 13.

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