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GarryVolchara [31]
3 years ago
9

9. If DF = 42, find DE.7x+1 4x-3DEF what is DE​

Mathematics
1 answer:
andreev551 [17]3 years ago
3 0

Answer:

29

Step-by-step explanation:

So DF = 42, And we know that DF = DE + EF

Therefore (7x+1) + (4x-3) = 42

11x -2 = 42

11x = 44

x = 4

Substitute x = 4 onto DE equation, so 7(4) +1

= 29.

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Step-by-step explanation:

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Does the table represent a function ? If so, state the domain and range. If not, state why. (Picture)
andrezito [222]

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3 years ago
What is the product of a+3 and −2a2+15a+6b2?
Arte-miy333 [17]

Answer:

<h3>            -2a³ + 9a² + 6ab² + 45a + 18b² </h3>

Step-by-step explanation:

(a + 3)×(−2a² + 15a + 6b²) =

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= -2a³ + 9a² + 6ab² + 45a + 18b²

8 0
2 years ago
Read 2 more answers
Triangle XYZ is located at X (−2, 1), Y (−4, −3), and Z (0, −2). The triangle is then transformed using the rule (x−1, y+3) to f
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3 years ago
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