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mrs_skeptik [129]
3 years ago
13

SOMEONE PLEASE HELP....

Mathematics
1 answer:
Anton [14]3 years ago
6 0

Answer:

Step-by-step explanation:

(3x+4)(x^2+px+5) \\=3x^3+3px^2+15x+4x^2+4px+20\\=3x^3+(3p+4)x^2+(15+4p)x +20

since we know that x^2  in this expansion is -23x^{2}

thus 3p+4=-23\\3p=-27\\p=-9

Hope that helps!

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Name the line and plane shown in the diagram. A.AB and plane ABD B.BA and plane DC C.AC and plane ABD D.AB and plane DA
elena-14-01-66 [18.8K]

Answer: The line is AB and the plane is ABD, the first option is the correct one.

Step-by-step explanation:

Ok, first some definitions.

A line is any line that crosses two colinear points. Particularly, you can see in the graph that the line crosses through A and B, so the line is AB.

A plane needs 3 non-colinear points (if the points where colinear, then the points may define a line). Other definition of plane is "a line and a point that is not in the line"

So, if our line is AB, then the possible planes are:

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then the correct option is:

Line AB and plane ABD, so the correct option is the first one.

6 0
3 years ago
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Answer:

Answer is 216m^2

Step-by-step explanation:

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3 0
4 years ago
Find the area of a regular dodecagon (12 sided regular
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Answer:

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Step-by-step explanation:

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6 0
3 years ago
Suppose two adjacent endpoint of a rotated square are located at (-4, -6) and (5, -1) on the coordinates axes. What is the lengt
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To find the length of side of square, we have to use distance formula.
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Answer: 10.3 units
4 0
3 years ago
The fractions of 4/6 &amp; 5/10
telo118 [61]
I don't understand your question are you multiplying or what
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4 years ago
Read 2 more answers
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