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Tresset [83]
3 years ago
10

Problems 7-12 Simplify each expression,

Mathematics
1 answer:
vredina [299]3 years ago
6 0

Answer:

7. 81

8. 6t³-27t²+2t-9

0

1667

9. -14y/\4+21y²+63y

10. 6x-1

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I need help with this math problem
mr Goodwill [35]

Let X = number of minutes.

Plan A = 50 + 0.04X

Plan B = 60 + 0.02X


50 + 0.04X = 60 + 0.02X

Subtract 50 from each side:

0.04X = 10 + 0.02X

Subtract 0.02X from each side:

0.02X = 10

Divide both sides by 0.02

X = 10 / 0.02

X = 500

It will take 500 minutes.



6 0
3 years ago
What are the center and radius of the circle defined by the equation<br> x2 + y2 - 6x+By+21=0 ?
podryga [215]

    (x-3)2+(y+B2)2+By=-12+B24

5 0
3 years ago
What is the sign of the product (−2)(4)(−6)(−3)? (5 points)
Karolina [17]

Answer:

-144

Step-by-step explanation:

because the is an odd number of - the product will be a negative

(−2)(4)(−6)(−3)

(-8)(18)

= -144

hope this helps

5 0
3 years ago
Three corporations each own land. Corporation A owns 3.2 × 105 acres, corporation B owns 4 × 104 acres, and corporation C owns 4
elena-14-01-66 [18.8K]
First of all, we know that
Corporation A owns 3.2 × 10^5 acres
Corporation B owns 4×10^4 acres
Corporation C owns 4.3×10^5 acres
To compare which corporation owns the most land, we need to have the same unit of exponent which is 10^4, so we need to change Corporation A and Corporation C:
Corporation A: 3.2×10^5
Corporation A: 32×10^4
Corporation C: 4.3×10^5
Corporation C: 43×10^4
In this case, compare all three corporation. We see that Corporation C owns the most land.
Lastly,
To find “ How many times greater is corporation A’s land than corporation B’s land ", take:
Corporation A / Corporation B
=32×10^4/4×10^4
=32/4×10^4/10^4
=8×10^4-4
=8×10^0
=8×1
=8 times is your final answer. Hope it help!
5 0
3 years ago
Read 2 more answers
What is 247 divided by 10 with a two power
erastovalidia [21]
The answer to your question is 2.47
6 0
3 years ago
Read 2 more answers
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