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dimaraw [331]
3 years ago
12

What does 3x2 + 9x − 30

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
7 0

Answer:38

Step-by-step explanation:

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Is (a-3)(2a^2 + 3a + 3) equivalent to 2(a^3 - 1.5a^2 - 3a - 4.5)
vovikov84 [41]
<h3>Answer: Yes they are equivalent</h3>

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

Work Shown:

Expand out the first expression to get

(a-3)(2a^2 + 3a + 3)

a(2a^2 + 3a + 3) - 3(2a^2 + 3a + 3)

2a^3 + 3a^2 + 3a - 6a^2 - 9a - 9

2a^3 + (3a^2-6a^2) + (3a-9a) - 9

2a^3 - 3a^2 - 6a - 9

Divide every term by 2 so we can pull out a 2 through the distributive property

2a^3 - 3a^2 - 6a - 9 = 2(a^3 - 1.5a^2 - 3a - 4.5)

This shows that (a-3)(2a^2 + 3a + 3) is equivalent to 2(a^3 - 1.5a^2 - 3a - 4.5)

4 0
3 years ago
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16.
KatRina [158]

Answer:

D

Step-by-step explanation:

is the correct answer i believe.

3 0
3 years ago
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These points are linear.<br> Find the slope.
Harlamova29_29 [7]

Answer:

here

Step-by-step explanation:

8/1 or 8

8 0
3 years ago
classmate DAN sual For madenaldy asymmetrical distribution, the arithmetic mean 28 and the median = 25. Find modo of this dish b
vazorg [7]
  • Median=M_d=25
  • Mean=M=28
  • Mode=M_o=?

We know

\boxed{\sf M_o=3M_d-2M}

\\ \sf\longmapsto M_o=3(25)-2(28)

\\ \sf\longmapsto M_o=75-56

\\ \sf\longmapsto M_o=19

3 0
3 years ago
elizabeth has 10$, $5 and $1 dollar bills worth 101$. She has five more 5$ bills than 10$ bills and four times as many 1$ bills.
vampirchik [111]
$120 is your answer
4 0
3 years ago
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