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Lesechka [4]
3 years ago
9

Evaluate 10.2x + 9.4y when x=2 and y=3

Mathematics
1 answer:
vekshin13 years ago
5 0
10.2 x 2 = 20.40
9.4 x 3 = 28.20
Total= 48.60
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Simplify<br> a(cube)-1000b(cube)<br> 64a(cube)-125b(cube)
Elanso [62]

The simplification of a³ - 1000b³ and 64a³ - 125b³ is (a - 10b) × (a² + 10ab + 100b²) and 4a - 5b) • (16a² + 20ab + 25b²) respectively.

<h3>Simplification</h3>

Question 1: a³ - 1000b³

a³ - b³

= (a-b) × (a² +ab +b²)

  • 1000 is the cube of 10
  • a³ is the cube of a¹
  • b³ is the cube of b¹

So,

(a - 10b) × (a² + 10ab + 100b²)

Question 2: 64a³ - 125b³

a³ - b³

= (a-b) × (a² +ab +b²)

  • 64 is the cube of 4
  • 125 is the cube of 5
  • a³ is the cube of a¹
  • b³ is the cube of b¹

So,

(4a - 5b) • (16a² + 20ab + 25b²)

Learn more about simplification:

brainly.com/question/723406

#SPJ1

8 0
2 years ago
Which fraction shoes unit rate that is equal to the ratio 18:2
kati45 [8]

Answer: 9/1

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Will mark as BRAINLIEST!!!
Nadusha1986 [10]

Answer:

talk on here

Step-by-step explanation:

3 0
3 years ago
I FREEking need help on this! You will get some POINTS for it ∵
omeli [17]

What do you need help on? All I see is a y axis and x axis grid.

4 0
3 years ago
Which is the simplified form of r-7 + s-12?
timama [110]

Answer:

\frac{1}{ {r}^{7} }  +  \frac{1}{ {s}^{12} }

3 0
2 years ago
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