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schepotkina [342]

3 years ago

9

Holt mcdougal chapter 7 online answer key

1 answer:

lozanna [386]3 years ago

6 0

Answer:

saan po yung pic hindi kopo maindihan

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Multiply and simplify. (5 - 3i)(6 + 2i)

AleksandrR [38]

36-8i is the answer.

3 0

3 years ago

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Which figure represents an undefined term?

Fudgin [204]

In geometry, the three undefined terms are: the point, the plane and the straight line.

Since all the given graphs represent lines,we will need to choose the straight line among them.

Straight line is a line that has no start and no end.

From the choices:
Figures a and c are rays
figure b is a line segment
figure d is a straight line

Therefore, the correct choice is: D

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3 years ago

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What are the real and complex solutions of the polynomial equation X^3-216=0

vazorg [7]

Answer:

$6,\ -3+3\sqrt{3}i,\ -3-3\sqrt{3}i$

Step-by-step explanation:

Factor the equation $x^3-216=0$ using formula for difference of the cubes:

$x^3-216=(x-6)(x^2+6x+36),$

then

$x-6=0\ or\ x^2+6x+36=0.$

1. The equation $x-6=0$ has real solution $x=6.$

2. The equation $x^2+6x+36=0$ has negative discriminant $D=6^2-4\cdot 36=36-144=-108,$ then it has two complex solutions

$x_{1,2}=\dfrac{-6\pm 6\sqrt{3}i}{2}=-3\pm3\sqrt{3}i.$

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3 years ago

Simplify:2(x2 + 5) − 3(x + 1) + 3

sesenic [268]

Step-by-step explanation:

2x2 + 10 - 3x - 3 + 3

Solving like terms

2x2 - 3x + 10

Option B is the correct answer

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3 years ago

6) Heather won 45 lollipops playing the bean

Tpy6a [65]

Answer:

14

Step-by-step explanation:

45/3=15

She has 3 left so that means she has 14 friends

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3 years ago

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