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eduard
3 years ago
15

Simplify the expression to a polynomial in standard form: (3x – 10)(x2+ 2x - 1 )

Mathematics
1 answer:
KonstantinChe [14]3 years ago
3 0

Answer:

3 x ^3  −  4 x ^2  −  23 x  +  10

Step-by-step explanation:

hope this helps!

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How to construct a triangle with side lengths 10 cm and 14 cm and an angle between them of 60 degrees.
Yuliya22 [10]

Answer:

We draw line AB which is perpendicular to the 14 cm side

Since Angle C is 60 degrees that makes angle CAB = 30 degrees

Triangle CAB is a 30 60 90 triangle so line CB is half the hypotenuse or 5 cm

Line BD equals 9 cm

Line AB^2 = 10^2 - 5^2 = 75

Line AD^2 = AB^2 + BD^2

Line AD^2 = 75 + 81

Line AD^2 = 156

Line AD = 12.4899959968

Line AB = Sqr root (75) = 8.6602540378

Angle D = arc sine  (8.6602540378 / 12.4899959968)

Angle D = 43.898 degrees

Angle A = 180 - 60 - 43.898 = 76.102 degrees

*****************************************************************

Actually this could have been done a little easier by using the Law of Cosines and then the Law of Sines, but I just thought I'd show another way to solve this.

Step-by-step explanation:

4 0
3 years ago
What is 1/3 divided by 5/6?<br> Please help me don’t get it
hammer [34]

Answer:

=0.4

Step-by-step explanation:

1/3= 0.33

5/6=0.83

Then: 0.33/0.83 = 0.4

You can also do 6/15 which results from (1*6)=6 and (3*5)=15

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3 years ago
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Given: <br> P: 3x + 7 = -5<br> Q: 4x + 12 = -4
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Answer:

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Step-by-step explanation:

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4 years ago
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Zarrin [17]
.50x -5=0
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The slope is .50
The y intercept is -5
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3 years ago
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Step-by-step explanation:

i could not get the first answer sorry:( but i got the rest so feel free to give me brainliest:)

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