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harina [27]
3 years ago
11

Simplify the expression: z2 – z(z + 3) + 3z a. 2z2 + 6z b. z + 3 c. 6z d. 0

Mathematics
1 answer:
Mama L [17]3 years ago
5 0
This stuff is way to hard
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Answer: 23

Step-by-step explanation:

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Pweas help....10 points and brainiest and thznks<3
Travka [436]

Answer:

F&H are vertical angles, D&H are corresponding angles, E&H are adjacent angles, and B&H are alternate interior angles.

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Hope this helps. Tell me if you need and explanation.

7 0
3 years ago
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Is is true that the coefficient of the expression 18z-7(-3+2z) of z is 13
Sever21 [200]
<span>18z-7(-3+2z) 
= 18z + 21 - 14z
= 4z + 21

answer is False
</span><span>coefficient of z is 4, not 13</span>
3 0
3 years ago
Using the Completing the Square method, what are the zeros of the quadratic function f(x) = 2x2 + 8x - 3?
Ipatiy [6.2K]

Answer:

A.

Step-by-step explanation:

1) to rewrite the given equation:

f(x)=2(x²+4x)-3; ⇔ f(x)=2(x²+4x+4)-3-8; ⇔ f(x)=2(x²+4x+4)-11; ⇔ f(x)=2(x+2)²-11;

2) the roots are:

\left[\begin{array}{ccc}x=-\sqrt{\frac{11}{2}}-2 \\x=\sqrt{\frac{11}{2}}-2 \end{array}

3) finally, the correct answer is A.

4 0
2 years ago
Which models best illustrates the inequality and its graph? t ≥ 60
Dmitry [639]

It will be the model that has the arrow going to the right with the starting point at 60 having a solid circle.

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