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Tatiana [17]
3 years ago
11

What is a correct expansion of (3x + 2)(3x^2 + 4)

Mathematics
1 answer:
worty [1.4K]3 years ago
3 0
It would be 9x^3+6x^2+12x+8

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Find the value of the variable.
nalin [4]

Answer:

The variable, y is 11°

Step-by-step explanation:

The given parameters are;

in triangle ΔABC;          {}              in triangle ΔFGH;

Segment \overline {AB} = 14         {}               Segment \overline {FG} = 14

Segment \overline {BC} = 27         {}              Segment \overline {GH} = 19

Segment \overline {AC} = 19         {}               Segment \overline {FH} = 2·y + 5

∡A = 32°                       {}                ∡G = 32°

∡A = ∠BAC which is the angle formed by segments \overline {AB} = 14 and \overline {AC} = 19

Therefore, segment \overline {BC} = 27, is the segment opposite to ∡A = 32°

Similarly, ∡G = ∠FGH which is the angle formed by segments \overline {FG} = 14 and \overline {GH} = 19

Therefore, segment \overline {FH} = 2·y + 5, is the segment opposite to ∡A = 32° and triangle ΔABC ≅ ΔFGH by Side-Angle-Side congruency rule which gives;

\overline {FH} ≅ \overline {BC} by Congruent Parts of Congruent Triangles are Congruent (CPCTC)

∴ \overline {FH} = \overline {BC} = 27° y definition of congruency

\overline {FH} = 2·y + 5 = 27° by transitive property

∴ 2·y + 5 = 27°

2·y = 27° - 5° = 22°

y = 22°/2 = 11°

The variable, y = 11°

8 0
2 years ago
A cylinder has a diameter of 8 inches and a volume of 1287 cubic inches. What is the height of
fredd [130]

Answer:

25.62

Step-by-step explanation:

the answer is rounded and pi was 3.14 to solve this

8 0
3 years ago
Whoever answers first ill mark brainlist
aivan3 [116]

Answer:

∠S = 19°

Step-by-step explanation:

Since all angles in a triangle add up to 180°, we must first find how much is left.

<em>180 - 142 = 38</em>

And since we know that the two lines are congruent, we know that the two other angles will be the same. So we divide the remaining by 2

<em>38 ÷ 2 = 19</em>

So both other angles are 19° meaning that ∠S is 19°

Hope this was helpful!

8 0
2 years ago
Read 2 more answers
Morris has 1.25 pounds of strawberries he uses 0.25 pounds of strawberries to make one serving how many servings can Morris make
Butoxors [25]
You have to divide 1.25 by .25 the answer is 5 servings
6 0
3 years ago
Helppppp what was Fátima’s error?
Gekata [30.6K]

Answer:

She applied the exponent -2 to 4(-2) instead of applying the exponent to just -2.

Step-by-step explanation:

i got my rerecord from my flash cards my teacher made of some answers

3 0
3 years ago
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